Introduction to Logical Design
Introduction to Logic Design (3rd Ed)_Alan B.MArcovitz pdf版本
Hands-On Database An IntroductIon to Database design and development 2nd2018-06-10
chapter 1: Who Needs a database narrative Sharon, a student at a community college, applies to become a tutor for database-related subjects at the school. She discovers they use spiral notebooks and spreadsheets to manage the tutoring information. She suggests to the supervisor that they could benefit from a database and offers to build it. The supervisor agrees to the project. Sharon interviews her and gets a sense of what the overall database will entail and drafts a statement of scope. She and the supervisor discuss the statement and make some modifications. outcomes • Define relational databases • Understand the position of relational databases in the history of databases • Identify major relational database management systems • Identify main characteristics of relational databases • Understand SQL’s role in relational database • Recognize some indications of where a database could be useful • Define a statement of scope for a given database scenario chapter 2: Gathering information narrative Now that she has the scope of the database, Sharon begins to gather information about the data the database will need to capture and process. First, she looks at the spiral notebooks that have been used to schedule tutoring sessions. She also looks at the spreadsheets the supervisor develops for reports and other related documents. Then she arranges an interview with several of the tutors and an additional interview with the supervisor, and creates a questionnaire for students who use the tutoring services. Finally, she spends an afternoon in the computer lab, observing how students schedule tutoring and how the actual tutoring sessions go. outcomes • Review documents to discover relevant entities and attributes for database • Prepare interview questions and follow up • Prepare questionnaires • Observe work flow for process and exceptions xiv Preface chapter 3: requirements and business rules narrative Having gathered all this information, Sharon must figure out what to do with it. She searches through her notes for nouns and lists them. Then she looks at the lists to see if there are additional topics, or subjects. Then she groups which nouns go with which topics. For each topic area, Sharon identifies some candidate keys. Next, she looks through her notes to determine what the business rules of the tutoring program are. She lists the rules and makes notes for further questions. The rules seem complex, and Sharon remembers something from a systems analysis class about UML diagrams called Use Case diagrams. She uses these diagrams to graphically show how each actor—tutor, student, and supervisor—interacts with the database. outcomes • Use nouns from notes and observations to discover database elements • Group elements into entities and attributes • Define business rules • Develop Use Case diagrams to model requirements chapter 4: database design narrative Sharon is ready to design the database. She looks at her topics lists and diagrams an initial set of entities, using Visio. She analyses the relationships among the entities, adding linking tables wherever she finds a many-to-many relation. Then she adds the other items from her list to the appropriate entities as attributes. For each attribute, she assigns a data type. She reviews the design to ensure that she has captured all the data and the business rules. outcomes • Use the database modeling template in Microsoft Visio • Create entities and add attributes • Determine the appropriate relationship between entities • Resolve many-to-many relationships with a linking table chapter 5: Normalization and design review narrative Now, with the help of an instructor, Sharon checks to make sure the database conforms to the rules of normalization. She reviews the database thus far with her supervisor. outcomes • Evaluate entities against first three normal forms • Adjust the relational diagram to reflect normalization chapter 6: Physical design narrative Sharon builds a prototype of the database, creating all the tables and setting up the relationships. When she has it set up, she enters 5 or 10 rows of sample data so she can test the database. outcomes • Implement a physical design of the database based on the logical ERDs • Choose appropriate data types for columns • Enter sample data into tables chapter 7: sql narrative Sharon writes some SQL queries to see if she can get the needed information out of the database. She tests for database requirements. Preface xv outcomes • Name the main events in the development of SQL • Run SELECT queries with a variety of criteria • Join two or more tables in a query • Use the aggregate functions COUNT, AVG, SUM, MIN, and MAX • INSERT, UPDATE, and DELETE records • Use SQL to test business rules chapter 8: is it secure? narrative In this chapter, Sharon looks at the security needs of the database. It is important to give everyone the access that they require to do the things they need to do. But it is also important to protect the database objects and data from either accidental or intentional damage. Sharon discovers that security is complex and requires careful planning. outcomes • Analyze security needs and restrictions for users of the database • Analyze threats to database integrity • Understand the concepts of authentication and authorization • Create logins and users • Create roles appendixes a: using microsoft access with the book A quick overview of using Microsoft Access instead of SQL Server with the book. It looks at each chapter and shows how you would use Access and what adjustments you will need to make to the practices and scenarios. b: sql server express An overview of how to use the SQL Server Management Studio to create and access databases in SQL Server Express. c: visio An overview of the Visio environment, with a special focus on the database templates. D: common relational patterns A review of some of the most common relational patterns students will encounter in database design such as the Master/Detail relation, weak entities, linking tables, and so on. glossary of terms Glossary of all vocabulary terms.
Introduction to Distributed Computer Systems-Springer(2018).pdf2018-01-27
In the most general meaning, a distributed computer system is identified with computer network. There are two problems with this identification. One concerns the word “computer”. Even the origins of such systems encompassed not only computers but also devices far from being computers, like missile launchers and other military objects (a brief historical outline is in Chap. 2). Let alone today’s networks that connect things of professional and everyday usage: one can hardly say that the so-called intelligent refrigerator is a computer. The other problem concerns the word “distributed”. The main feature of such architectures is lack of shared physical memory, where processors intercommunicate by message passing through data links (channels) of arbitrary length and bandwidth. So, in this meaning, a motherboard of transputers (Sect. 5.3 in Chap. 5), processors interacting by data packet exchange inside one machine, all are distributed systems too. But on the other hand, a computer surrounded by simple terminals for data input and output, multi-access computer or workstations with direct access to memory of a mainframe, are systems categorized as not distributed in the aforesaid meaning, though distributed in the common parlance, because separated spatially. Nonetheless, the distinguishing characteristic of distributed computer systems as the research and engineering domain, is inter-computer communication by message passing based on networks. However, the design, technical solutions, and appli- cation of distributed systems and general (“generic”) networks, are not identical. The conceptual difference lies in their destination. A distributed system is being often constructed as a computation environment for specific class of applications, for a company of certain activity profile, for a corporation or education center, whereas a network is a universal tool for data transmission not limited to particular applications. Thus, the constructional difference consists in softw
Database Modeling and Design focuses on techniques for database design in relational database systems. The book discusses the entity-relationship approach and the unified modeling language approach; both are used throughout the book when it refers to logical database design for the specification of
Preface xv Acknowledgments xvii CHAPTER 1 Introduction 1 PART ONE Service-Oriented Life Cycle 29 CHAPTER 2 Service-Oriented Life Cycle Model 31 CHAPTER 3 Service-Oriented Life Cycle Perspectives 49 PART TWO Service-Oriented Conceptualization 69 CHAPTER 4 Attribution Analysis 75 CHAPTER 5 Conceptual Service Identification 87 PART THREE Service-Oriented Discovery and Analysis 111 CHAPTER 6 Service-Oriented Typing and Profiling Model 115 CHAPTER 7 Service-Oriented Discovery and Analysis: CHAPTER 8 Service-Oriented Analysis Modeling 155 PART FOUR Service-Oriented Business Integration 169 CHAPTER 9 Business Architecture Contextual Perspectives 177 CHAPTER 10 Business Architecture Structural Perspectives 191 CHAPTER 11 Service-Oriented Business Integration Modeling 211 PART FIVE Service-Oriented Design Model 229 CHAPTER 12 Service-Oriented Logical Design Relationship 233 CHAPTER 13 Service-Oriented Logical Design Composition 257 CHAPTER 14 Service-Oriented Transaction Model 283 PART SIX Service-Oriented Software Architecture CHAPTER 15 Service-Oriented Conceptual Architecture Modeling CHAPTER 16 Service-Oriented Logical Architecture Principles 341 Index 359
C++ How to Program, 10th Edition2019-01-06
C++ How to Program (10th Edition) By 作者: Harvey M. Deitel Paul Deitel ISBN-10 书号: 9332585733 ISBN-13 书号: 9789332585737 Edition 版本: 10th 出版日期: 2017 Format: Paperback C++ How to Program presents leading-edge computing technologies in a friendly manner appropriate for introductory college course sequences, based on the curriculum recommendations of two key professional organizations–the ACM and the IEEE. The best-selling C++ How to Program is accessible to readers with little or no programming experience, yet comprehensive enough for the professional programmer. The Deitels’ signature live-code approach presents the concepts in the context of full working programs followed by sample executions. The early objects approach gets readers thinking about objects immediately–allowing them to more thoroughly master the concepts. Emphasis is placed on achieving program clarity and building well-engineered software. Interesting, entertaining, and challenging exercises encourage students to make a difference and use computers and the Internet to work on problems. To keep readers up-to-date with leading-edge computing technologies, the Tenth Edition conforms to the C++11 standard and the new C++14 standard. 1Introduction to Computers and C++ 2 Introduction to C++Programming,Input/Output and Operators 3Introduction to Classes,Objects,Member Functions and Strings 4Algorithm Development and Control Statements:Part 1 5 Control Statements:Part 2;Logical Operators 6Functions and an Introduction to Recursion 7 Class Templates array and vector;Catching Exceptions 8 Pointers 9 Classes:A Deeper Look 10 Operator Overloading;Class string 11 Object-Oriented Programming:Inheritance 12 Object-Oriented Programming:Polymorphism 13 Stream Input/Output:A Deeper Look 14File Processing 15 Standard Library Containers and lterators 16 Standard Library Algorithms 17 Exception Handling:A Deeper Look 18 Introduction to Custom Templates 19 Custom Templatized Data Structures 20 Searching and Sorting 21Class string and String Stream Processing:A Deeper 22 Bits,Characters,C Strings and structs Chapters on the Web A Operator Precedence and Associativity B ASClI Character Set CFundamental Types DNumber Systems E Preprocessor Appendices on the Web Index
Functional Programming in Scala2017-12-11
Functional programming (FP) is a programming style emphasizing functions that return consistent and predictable results regardless of a program's state. As a result, functional code is easier to test and reuse, simpler to parallelize, and less prone to bugs. Scala is an emerging JVM language that offers strong support for FP. Its familiar syntax and transparent interoperability with existing Java libraries make Scala a great place to start learning FP., Functional Programming in Scala is a serious tutorial for programmers looking to learn FP and apply it to the everyday business of coding. The book guides readers from basic techniques to advanced topics in a logical, concise, and clear progression. In it, you'll find concrete examples and exercises that open up the world of functional programming., You'll discover simple but powerful ideas and techniques that cut through the complexity of modern software engineering, including writing multi-core and distributed programs. You'll learn how FP gives you high confidence in the correctness of your code and helps you design software at high levels of abstraction so that even very large systems become comprehensible at a glance., WHAT'S INSIDE:, Functional programming from square one in clear, readable language, No prior Scala experience needed, Learn both the hows and whys of FP, No prior experience with FP or Scala is required. Perfect for programmers familiar with FP in other languages wishing to apply their knowledge in Scala.
Radar System Analysis And Design Using Matlab2014-12-14
An introduction to radar systems should ideally be self-contained and hands-on, a combination lacking in most radar texts. The first edition of Radar Systems Analysis and Design Using MATLAB® provided such an approach, and the second edition continues in the same vein. This edition has been updated, expanded, and reorganized to include advances in the field and to be more logical in sequence.
Title: Operating System Design: The Xinu Approach 2nd Edition Author: Douglas Comer Length: 701 pages Edition: 2 Language: English Publisher: Chapman and Hall CRC Publication Date: 2015 02 18 ISBN 10: 1498712436 ISBN 13: 9781498712439 An Update of the Most Practical A to Z Operating System Book Widely lauded for avoiding the typical black box approach found in other operating system textbooks the first edition of this bestselling book taught readers how an operating system works and explained how to build it from the ground up Continuing to follow a logical pattern for system design Operating System Design: The Xinu Approach Second Edition removes the mystery from operating system design and consolidates the body of material into a systematic discipline It presents a hierarchical design paradigm that organizes major operating system components in an orderly understandable manner The book guides readers through the construction of a conventional process based operating system using practical straightforward primitives It gives the implementation details of one set of primitives usually the most popular set Once readers understand how primitives can be implemented on conventional hardware they can then easily implement alternative versions The text begins with a bare machine and proceeds step by step through the design and implementation of Xinu which is a small elegant operating system that supports dynamic process creation dynamic memory allocation network communication local and remote file systems a shell and device independent I O functions The Xinu code runs on many hardware platforms This second edition has been completely rewritten to contrast operating systems for RISC and CISC processors Encouraging hands on experimentation the book provides updated code throughout and examples for two low cost experimenter boards: BeagleBone Black from ARM and Galileo from Intel Table of Contents Chapter 1 Introduction And Overview Chapter 2 Concurrent Execution And Operating System Services Chapter 3 An Overview Of The Hardware And Runtime Environment Chapter 4 List And Queue Manipulation Chapter 5 Scheduling And Context Switching Chapter 6 More Process Management Chapter 7 Coordination Of Concurrent Processes Chapter 8 Message Passing Chapter 9 Basic Memory Management Chapter 10 High level Memory Management and Virtual Memory Chapter 11 High level Message Passing Chapter 12 Interrupt Processing Chapter 13 Real time Clock Management Chapter 14 Device– independent Input And Output Chapter 15 An Example Device Driver Chapter 16 DMA Devices And Drivers Ethernet Chapter 17 A Minimal Internet Protocol Stack Chapter 18 A Remote Disk Driver Chapter 19 File Systems Chapter 20 A Remote File Mechanism Chapter 21 A Syntactic Namespace Chapter 22 System Initialization Chapter 23 Subsystem Initialization And Memory Marking Chapter 24 Exception Handling Chapter 25 System Configuration Chapter 26 An Example User Interface: The Xinu Shell">Title: Operating System Design: The Xinu Approach 2nd Edition Author: Douglas Comer Length: 701 pages Edition: 2 Language: English Publisher: Chapman and Hall CRC Publication Date: 2015 02 18 ISBN 10: 1498712436 ISBN 13: 9781498712439 An Update of the Most Practical A to Z Operating System Book W [更多]
Understanding Delta Sigma Data Converters - IEEE Press2009-11-16
Book Description Learn how to harness the power of delta-sigma data converters Understanding Delta-Sigma Data Converters brings readers a clear understanding of the principles of delta-sigma (ΔΣ) converter operation—analog to digital and digital to analog. It introduces the best computer-aided analysis and design techniques available. With an understanding of the great versatility of the ΔΣ converter, readers can apply their new knowledge to a wide variety of applications, including digital telephony, digital audio, wireless and wired communications, medical electronics, and industrial and scientific instrumentation. The authors make the material accessible to all design engineers by focusing on developing an understanding of the physical operation rather than getting mired in complex mathematical treatments and derivations. Written for entry-level readers, the publication has a natural flow that begins with basic concepts, enabling the readers to develop a solid foundation for the book's more complex material. The text, therefore, starts with a general introduction to the ΔΣ converter, including a brief historical overview to place it in context. Next, the publication introduces the first-order ΔΣ modulator, covering oversampling, noise-shaping, decimation filtering and other key concepts. Then, using the first-order modulator as a foundation, second and higher-order modulators are presented and analyzed. Finally, the authors delve into implementation considerations and present several design examples using the Delta-Sigma Toolbox. Everything needed to facilitate quick comprehension and help readers apply their newly learned principles is provided: Simplified methods to understand complicated concepts such as spectral estimation and switched noise References that lead to in-depth analysis of specialized topics Figures and charts that illustrate complex design issues Conclusion section at the end of each chapter that highlights the key points Reference manual for the Delta-Sigma Toolbox, along with numerous practical examples that illustrate the use of the Toolbox This is essential reading for all design engineers who want to learn and fully harness the powerful capabilities of ΔΣ data converters. Upper-level undergraduates and graduate students will find the book's logical organization and clear style, coupled with numerous practical examples, a great entry into the field.
Beginning T-SQL with Microsoft SQL Server 2005 and 20082009-04-08
Transact-SQL, or T-SQL, is Microsoft Corporation’s powerful implementation of the ANSI standard SQL database query language, which was designed to retrieve, manipulate, and add data to relational database management systems (RDBMS). You may already have a basic idea of what SQL is used for, but you may not have a good understanding of the concepts behind relational databases and the purpose of SQL. This book will help you build a solid foundation of understanding, beginning with core relational database concepts and continuing to reinforce those concepts with real-world T-SQL query applications. If you are familiar with relational database concepts but are new to Microsoft SQL Server or the T-SQL language, this book will teach you the basics from the ground up. If you’re familiar with earlier versions of SQL Server, it will get you up-to-speed on the newest features. And if you know SQL Server 2005, you’ll learn about some exciting new capabilities in SQL Server 2008. Information Technology professionals in many different roles use T-SQL. Our goal is to provide a guide and a reference for IT pros across the spectrum of operational database solution design, database application development, and reporting and business intelligence solutions. Database solution designers will find this book to be a thorough introduction and comprehensive reference for all aspects of database modeling, design, object management, query design, and advanced query concepts. Application developers who write code to manage and consume SQL Server data will benefit from our thorough coverage of basic data management and simple and advanced query design. Several examples of ready-to-use code are provided to get you started and to continue to support applications with embedded T-SQL queries. Report designers will find this book to be a go-to reference for report query design. You will build on a thorough introduction to basic query concepts and learn to write efficient queries to support business reports and advanced analytics. Finally, database administrators who are new to SQL Server will find this book to be an all-inclusive introduction and reference of mainstream topics. This can assist you as you support the efforts of other team members. Beyond the basics of database object management and security concepts, we recommend Beginning SQL Server 2005 Administration and Beginning SQL Server 2008 Administration from Wrox, co-authored in part by the same authors. This book introduces the T-SQL language and its many uses, and serves as a comprehensive guide at a beginner through intermediate level. Our goal in writing this book was to cover all the basics thoroughly and to cover the most common applications of T-SQL at a deeper level. Depending on your role and skill level, this book will serve as a companion to the other Wrox books in the Microsoft SQL Server Beginning and Professional series.. This book will help you to learn: * How T-SQL provides you with the means to create tools for managing databases of different size, scope, and purpose * Various programming techniques that use views, user-defined functions, and stored procedures * Ways to optimize query performance * How to create databases that will be an essential foundation to applications you develop later Each section of this book organizes topics into logical groups so the book can be read cover-to-cover or can be used as a reference guide for specific topics. We start with an introduction to the T-SQL language and data management systems, and then continue with the SQL Server product fundamentals. This first section teaches the essentials of the SQL Server product architecture and relational database design principles. This section (Chapters 1–3) concludes with an introduction to the SQL Server administrator and developer tools. The next section, encompassing Chapters 4 through 9, introduces the T-SQL language and teaches the core components of data retrieval, SQL functions, aggregation and grouping, and multi-table queries. We start with the basics and build on the core structure of the SQL SELECT statement, progressing to advanced forms of SELECT queries. Chapter 10 introduces transactions and data manipulation. You will learn how the INSERT, UPDATE, and DELETE statements interact with the relational database engine and transaction log to lock and modify data rows with guaranteed consistency. You will not only learn to use correct SQL syntax but will understand how this process works in simple terms. More advanced topics in the concluding section will teach you to create and manage T-SQL programming objects, including views, functions, and stored procedures. You learn to optimize query performance and use T-SQL in application design, applying the query design basics to real-world business solutions. Chapter 15 contains a complete tutorial on using SQL Server 2008 Reporting Services to visualize data from the T-SQL queries you create. The book concludes with a comprehensive set of reference appendixes for command syntax, system stored procedures, information schema views, file system commands, and system management commands. The material in this book applies to all editions of Microsoft SQL Server 2005 and 2008. To use all the features discussed, we recommend that you install the Developer Edition, although you can also use the Enterprise, Standard, or Workgroup editions. SQL Server 2005 Developer Edition or SQL Server 2008 Developer Edition can be installed on a desktop computer running Windows 2000, Windows XP, or Windows Vista. You can also use Windows 2000 Server, Windows Server 2003, or Windows Server 2008 with the Enterprise or Standard edition. The SQL Server client tools must be installed on your desktop computer and the SQL Server relational database server must be installed on either your desktop computer or on a remote server with network connectivity and permission to access. Consult www.microsoft.com/sql for information about the latest service packs, specific compatibilities, and minimum recommend system requirements. The examples throughout this book use the following sample databases, which are available to download from Microsoft: the sample database for SQL Server 2005 is called AdventureWorks, and the sample database for SQL Server 2008 is called AdventureWorks2008. Because the structure of these databases differs significantly, separate code samples are provided throughout the book for these two version-specific databases. An example using the AdventureWorks2008DW database for SQL Server 2008 is also used in Chapter 15.
Infinity Science – Software Engineering and Testing.pdf2019-08-16
TABLE OF CONTENTS PART I: SOFTWARE ENGINEERING AND TESTING Chapter 1. Introduction to Software Engineering 3 1.1 Introduction to Software 3 1.2 Types of Software 5 1.3 Classes of Software 8 1.4 Introduction to Software Engineering 9 1.5 Software Components 11 1.6 Software Characteristics 12 1.7 Software Crisis 13 1.8 Software Myths 15 1.9 Software Applications 15 1.10 Software-Engineering Processes 18 1.11 Evolution of Software 20 1.12 Comparison of Software Engineering and Related Fields 22 1.13 Some Terminologies 25 1.14 Programs Versus Software Products 26 Chapter 2. Software-Development Life-Cycle Models 29 2.1 Software-Development Life-Cycle 29 2.2 Waterfall Model 36 2.3 Prototyping Model 41 2.4 Spiral Model 44 2.5 Evolutionary Development Model 46 2.6 Iterative-Enhancement Model 47 2.7 RAD Model 49 2.8 Comparison of Various Process Models 50 v vi TABLE OF CONTENTS Chapter 3. Introduction to Software Requirements Specification 53 3.1 Requirement Engineering 53 3.2 Process of Requirements Engineering 55 3.3 Information Modeling 61 3.4 Data-Flow Diagrams 62 3.5 Decision Tables 67 3.6 SRS Document 70 3.7 IEEE Standards for SRS Documents 73 3.8 SRS Validation 75 3.9 Components of SRS 75 3.10 Characteristics of SRS 78 3.11 Entity-Relationship Diagram 79 Chapter 4. Software Reliability and Quality Assurance 85 4.1 Verification and Validation 85 4.2 Software Quality Assurance 87 4.3 Software Quality 89 4.4 Capability Maturity Model (SEI-CMM) 96 4.5 International Standard Organization (ISO) 99 4.6 Comparison of ISO-9000 Certification and the SEI-CMM 106 4.7 Reliability Issues 107 4.8 Reliability Metrics 110 4.9 Reliability Growth Modeling 112 4.10 Reliability Assessment 115 Chapter 5. System Design 117 5.1 System/Software Design 117 5.2 Architectural Design 123 5.3 Low-Level Design 125 5.4 Coupling and Cohesion 136 5.5 Functional-Oriented Versus The Object-Oriented Approach 143 5.6 Design Specifications 144 5.7 Verification for Design 145 5.8 Monitoring and Control for Design 146 TABLE OF CONTENTS vii Chapter 6. Software Measurement and Metrics 149 6.1 Software Metrics 149 6.2 Halstead’s Software Science 151 6.3 Function-Point Based Measures 154 6.4 Cyclomatic Complexity 157 Chapter 7. Software Testing 161 7.1 Introduction to Testing 161 7.2 Testing Principles 162 7.3 Testing Objectives 163 7.4 Test Oracles 164 7.5 Levels of Testing 165 7.6 White-Box Testing/Structural Testing 173 7.7 Functional/Black-Box Testing 175 7.8 Test Plan 178 7.9 Test-Case Design 179 Chapter 8. Software-Testing Strategies 181 8.1 Static-Testing Strategies 181 8.2 Debugging 186 8.3 Error, Fault, and Failure 189 Chapter 9. Software Maintenance and Project Management 193 9.1 Software as an Evolution Entity 193 9.2 Software-Configuration Management Activities 193 9.3 Change-Control Process 197 9.4 Software-Version Control 199 9.5 Software-Configuration Management 200 9.6 Need for Maintenance 202 9.7 Categories of Maintenance 203 9.8 Maintenance Costs 204 9.9 Software-Project Estimation 207 9.10 Constructive Cost Model (COCOMO) 211 9.11 Software-Risk Analysis and Management 215 viii TABLE OF CONTENTS Chapter 10. Computer-Aided Software Engineering 223 10.1 Case and its Scope 223 10.2 Levels of Case 224 10.3 Architecture of Case Environment 224 10.4 Building Blocks for Case 226 10.5 Case Support in Software Life-Cycle 227 10.6 Objectives of Case 228 10.7 Case Repository 229 10.8 Characteristics of Case Tools 231 10.9 Case Classification 231 10.10 Categories of Case Tools 233 10.11 Advantages of Case Tools 234 10.12 Disadvantages of Case Tools 235 10.13 Reverse Software Engineering 235 10.14 Software Re-Engineering 240 Chapter 11. Coding 247 11.1 Information Hiding 247 11.2 Programming Style 248 11.3 Internal Documentation 250 11.4 Monitoring and Control for Coding 251 11.5 Structured Programming 252 11.6 Fourth-Generation Techniques 255 PART II: SOFTWARE DEVELOPMENT AND APPLICATIONS Chapter 12. Introduction to Software Development 261 12.1 Program Phase 262 12.2 How to Write a Good Program 262 12.3 Programming Tools 263 Chapter 13. Visual Basic 6.0 265 13.1 Hardware and Software Requirements for Visual Basic 266 13.2 Application Types 266 13.3 Compilation in Visual Basic 268 TABLE OF CONTENTS ix 13.4 Visual Basic Terminology 268 13.5 Integrated Development Environment (IDE) 269 Chapter 14. Controls in Visual Basic 273 14.1 Tool-Box Controls 276 Chapter 15. Variables and Operators in Visual Basic 297 15.1 Variable Naming Conventions 297 15.2 Variable Declaration 297 15.3 Scope of Variables 298 15.4 Logical Operators 298 15.5 Logical Operators 299 15.6 If-Else Statement 301 15.7 Do While …. Statement 301 15.8 For Loop 302 15.9 With–End With Statement 302 Chapter 16. Functions in Visual Basic 303 Chapter 17. Introduction to Databases 315 17.1 Tables 316 17.2 Structure of a Database 317 17.3 Keys 317 17.4 Data Integrity 318 Chapter 18. MS Access 2000 319 18.1 Creating a Database in MS Access 2000 319 18.2 Data Types 324 18.3 Field Properties 324 18.4 Saving the Table 327 18.5 Modifying the Table 328 18.6 Importing the Table 328 Chapter 19. Oracle 329 19.1 Starting with Oracle 8 329 19.2 How to Create a New User 331 x TABLE OF CONTENTS 19.3 User Creation by Navigator 332 19.4 Data Types in Oracle 335 19.5 Syntax and Query in Oracle 336 19.6 Functions 344 19.7 Primary Keys 345 19.8 Data Export 346 19.9 Data Import 347 Chapter 20. SQL Server 2000 349 20.1 What’s New in Microsoft SQL Server 2000? 349 20.2 Starting Microsoft SQL Server 2000 349 20.3 Installation of SQL Server 2000 351 20.4 Creating a Database 353 20.5 How to Create a Database Using Enterprise Manager 354 20.6 Create a Database Using the Create Database Wizard in Enterprise Manager 358 20.7 Creating a New Table 358 20.8 Data Types 361 20.9 Query Analyzer 368 20.10 How to use Query Analyzer 368 20.11 Generating an SQL Script 370 20.12 How to use the Script 374 20.13 Attaching a Database 376 20.14 Detaching a Database 378 20.15 Copy Database Wizard 380 20.16 Importing and Exporting a Database 380 20.17 SQL Server Service Manager 386 Chapter 21. Programming in Visual Basic with MS Access 2000 391 21.1 Saving Projects and Forms 393 21.2 Database Designing 399 21.3 Use of App.Path 412 Chapter 22. Programming with Oracle and SQL Server 2000 413 22.1 Table Creation 413 TABLE OF CONTENTS xi 22.2 Data Links 414 22.3 Working with the Project 418 22.4 Data Export at Runtime 420 22.5 Working in a Project with an SQL Server 2000 Database 420 Chapter 23. Graphs 421 Chapter 24. Data Reports 425 24.1 Data Report Creation 425 24.2 Data Environment and the Connection 425 24.3 Data Report Designing 430 24.4 Data Report Controls 433 24.5 Calling a Report 436 24.6 Retrieval of Selected Data in the Data Report 436 24.7 Index Number of Data Report Section 439 24.8 Grouping in Data Reports 440 Chapter 25. Crystal Reports 447 25.1 Advantages over Visual Basic Data Reports 448 25.2 Starting with Crystal Report 8.5 448 25.3 Creating Reports Using DSN of the SQL Server 2000 Database 451 25.4 Creating Connection Using DSN 456 Chapter 26. Error Handling 465 26.1 Key Handling 465 26.2 Key Locking at Key Press Event 469 26.3 Other Error-Handling Methods 470 26.4 Some Common Errors 471 26.5 Precautions 479 Chapter 27. Creating the Setup Package 481 27.1 How to Create a Setup 481 Index 493
VMware NSX-T Reference Design Guide Table of Contents 1 Introduction 4 1.1 How to Use This Document 4 1.2 Networking and Security Today 5 1.3 NSX-T Architecture Value and Scope 5 2 NSX-T Architecture Components 11 2.1 Management Plane 11 2.2 Control Plane 12 2.3 Data Plane 12 3 NSX-T Logical S
Chapter 1, Developer Environment for Go, covers a list of topics and concepts required to start working with Go and rest of the book. Some of these topics include Docker and testing in Go. Chapter 2, Understanding Goroutines, introduces the topic of concurrency and parallelism and then dives deep into the implementation details of goroutines, Go's runtime scheduler, and many more. Chapter 3, Channels and Messages, begins by explaining the complexity of controlling parallelism before introducing strategies to control parallelism, using different types of channels. Chapter 4, The RESTful Web, provides all the context and knowledge required to start designing and building REST APIs in Go. We will also discuss the interaction with a REST API server using different available approaches. Chapter 5, Introducing Goophr, opens the discussion on what is meant by a distributed search engine, using OpenAPI specification to describe REST APIs and describing the responsibilities of the components of a search engine, using OpenAPI. Finally, we'll describe the project structure. Chapter 6, Goophr Concierge, dives deep into the first component of Goophr by describing in detail how the component is supposed to work. These concepts are further driven home with the help of architectural and logical flow diagrams. Finally, we'll look at how to implement and test the component. Chapter 7, Goophr Librarian, is a detailed look at the component that is responsible for maintaining the index for the search terms. We also look at how to search for given terms and how to order our search results and many more. Finally, we'll look at how to implement and test the component. Chapter 8, Deploying Goophr, brings together everything we have implemented in the previous three chapters and start the application on the local system. We will then test our design by adding a few documents and searching against them via the REST API. Chapter 9, Foundations of Web Scale Architecture, is an introduction to the vast and complex topic on how to design and scale a system to meet with the demands at web scale. We will start with a single instance of a monolith running on a single server and scale it up to span across multiple region, have redundancy safeguards to ensure that the service is never down and many more.
Modular Programming with Python2016-10-02
Modular Programming with Python by Erik Westra English | 2016 | ISBN: 1785884484 | 246 pages | EPUB | 3 MB Introducing modular techniques for building sophisticated programs using Python About This Book • The book would help you develop succinct, expressive programs using modular deign • The book would explain best practices and common idioms through carefully explained and structured examples • It will have broad appeal as far as target audience is concerned and there would be take away for all beginners to Python Who This Book Is For This book is intended for beginner to intermediate level Python programmers who wish to learn how to use modules and packages within their programs. While readers must understand the basics of Python programming, no knowledge of modular programming techniques is required. What You Will Learn • Learn how to use modules and packages to organize your Python code • Understand how to use the import statement to load modules and packages into your program • Use common module patterns such as abstraction and encapsulation to write better programs • Discover how to create self-testing Python packages • Create reusable modules that other programmers can use • Learn how to use GitHub and the Python Package Index to share your code with other people • Make use of modules and packages that others have written • Use modular techniques to build robust systems that can handle complexity and changing requirements over time In Detail Python has evolved over the years and has become the primary choice of developers in various fields. The purpose of this book is to help readers develop readable, reliable, and maintainable programs in Python. Starting with an introduction to the concept of modules and packages, this book shows how you can use these building blocks to organize a complex program into logical parts and make sure those parts are working correctly together. Using clearly written, real-world examples, this book demonstrates how you can use modular techniques to build better programs. A number of common modular programming patterns are covered, including divide-and-conquer, abstraction, encapsulation, wrappers and extensibility. You will also learn how to test your modules and packages, how to prepare your code for sharing with other people, and how to publish your modules and packages on GitHub and the Python Package Index so that other people can use them. Finally, you will learn how to use modular design techniques to be a more effective programmer. Style and approach This book will be simple and straightforward, focusing on imparting learning through a wide array of examples that the readers can put into use as they read through the book. They should not only be able to understand the way modules help in improving development, but they should also be able to improvise on their techniques of writing concise and effective code.
Design and Implementation of Network Protocols in the Linux Kernel Part I: The Linux Kernel 1 Chapter 1. Motivation 3 Section 1.1. The Linux Operating System 4 Section 1.2. What is Linux? 5 Section 1.3. Reasons for Using Linux 6 Chapter 2. The Kernel Structure 9 Section 2.1. Monolithic Architectures and Microkernels 11 Section 2.2. Activities in the Linux Kernel 12 Section 2.3. Locking—Atomic Operations 17 Section 2.4. Kernel Modules 23 Section 2.5. Device Drivers 29 Section 2.6. Memory Management in the Kernel 31 Section 2.7. Timing in the Linux Kernel 35 Section 2.8. The Proc File System 40 Section 2.9. Versioning 43 Part II: Architecture of Network Implementation 45 Chapter 3. The Architecture of Communication Systems 47 Section 3.1. Layer-Based Communication Models 47 Section 3.2. Services and Protocols 52 Chapter 4. Managing Network Packets in the Kernel 55 Section 4.1. Socket Buffers 55 Section 4.2. Socket-Buffer Queues 66 Chapter 5. Network Devices 71 Section 5.1. The net_device Interface 73 Section 5.2. Managing Network Devices 82 Section 5.3. Network Drivers 92 Part III: Layer I + II—Medium Access and Logical Link Layer 115 Chapter 6. Introduction to the Data-Link Layer 117 Section 6.1. Structure of the Data-Link Layer 117 Section 6.2. Processes on the Data-Link Layer 119 Section 6.3. Managing Layer-3 Protocols 127 Chapter 7. The Serial-Line Internet Protocol (SLIP) 132 Section 7.1. Introduction 132 Section 7.2. Slip Implementation in the Linux Kernel 134 Chapter 8. The Point-to-Point Protocol (PPP) 145 Section 8.1. Introduction 145 Section 8.2. PPP Configuration in Linux 148 Section 8.3. PPP Implementation in the Linux Kernel 150 Section 8.4. Implementing the PPP Daemon 158 Chapter 9. PPP over Ethernet 161 Section 9.1. Introduction 161 Section 9.2. PPPOE Specification in RFC 2516 161 Section 9.3. Implementation in the User Space 163 Section 9.4. Implementation in the Linux Kernel 164 Chapter 10. Asynchronous Transfer Mode—ATM 168 Section 10.1. Introduction 168 Section 10.2. Implementing ATM in Linux 169 Section 10.3. Configuration 177 Chapter 11. Bluetooth in Linux 179 Section 11.1. Host Controller Interface (HCI) 181 Section 11.2. L2CAP 185 Section 11.3. Other Protocols 188 Chapter 12. Transparent Bridges 189 Section 12.1. Introduction 189 Section 12.2. Basics 190 Section 12.3. Configuring a Bridge in Linux 199 Section 12.4. Implementation 202 Part IV: Network Layer 221 Chapter 13. The TCP/IP Protocols 223 Section 13.1. The Internet Protocol Suite 224 Chapter 14. The Internet Protocol V4 227 Section 14.1. Properties of the Internet Protocol 228 Section 14.2. Implementing the Internet Protocol 233 Section 14.3. IP Options 250 Section 14.4. Internet Control Message Protocol (ICMP) 262 Chapter 15. Address Resolution Protocol (ARP) 273 Section 15.1. Using the Address Resolution Protocol 274 Section 15.2. The ARP Command 276 Section 15.3. Implementing the ARP Instance in the Linux Kernel 277 Chapter 16. IP Routing 293 Section 16.1. Introduction 293 Section 16.2. Configuration 301 Section 16.3. Implementation 309 Chapter 17. IP Multicast for Group Communication 330 Section 17.1. Group Communication 331 Section 17.2. IP Multicast 333 Section 17.3. Internet Group Management Protocol (IGMP) 339 Section 17.4. Multicast Data Path in the Linux Kernel 345 Section 17.5. Multicasting in Today's Internet 355 Section 17.6. Multicast Transport Protocols 364 Chapter 18. Using Traffic Control to Support Quality of Service (QoS) 366 Section 18.1. Introduction 366 Section 18.2. Basic Structure of Traffic Control in Linux 367 Section 18.3. Traffic Control in the Outgoing Direction 367 Section 18.4. Kernel Structures and Interfaces 369 Section 18.5. Ingress Policing 378 Section 18.6. Implementing a Queuing Discipline 378 Section 18.7. Configuration 381 Chapter 19. Packet Filters and Firewalls 383 Section 19.1. Introduction 383 Section 19.2. The Ipchains Architecture of Linux 2.2 386 Section 19.3. The Netfilter Architecture of Linux 2.4 391 Chapter 20. Connection Tracking 399 Section 20.1. Introduction 399 Section 20.2. Implementation 400 Chapter 21. Network Address Translation (NAT) 410 Section 21.1. Introduction 410 Section 21.2. Configuring NAT in Linux 414 Section 21.3. Implementing the NAT Module 416 Section 21.4. Interfaces to Extend the NAT Module 422 Chapter 22. Extending the Linux Network Architecture Functionality—KIDS 426 Section 22.1. Managing Dynamically Extendable Functionalities 426 Section 22.2. Structure of the KIDS Construction System 428 Section 22.3. Using the KIDS Example to Extend the Linux Network Architecture 431 Chapter 23. IPv6—Internet Protocol Version 6 443 Section 23.1. Introduction 443 Section 23.2. IPv6 Features 443 Section 23.3. IPv6 Implementation 450 Part V: Layer IV—Transport Layer 455 Chapter 24. Transmission Control Protocol (TCP) 457 Section 24.1. Overview 457 Section 24.2. Implementing The TCP Protocol Instance 460 Section 24.3. Connection Management 476 Section 24.4. Protocol Mechanisms For Data Exchange 486 Section 24.5. Timer Management In TCP 508 Chapter 25. User Datagram Protocol (UDP) 513 Section 25.1. Introduction 513 Section 25.2. Data Structures 514 Section 25.3. Sending and Receiving UDP Datagrams 519 Chapter 26. The Concept of Sockets 522 Section 26.1. Introduction 522 Section 26.2. BSD Sockets 522 Section 26.3. Protocol-Specific Sockets
英文原版-Modular Programming with Python 1st Edition2019-09-23
Introducing modular methods for constructing refined applications utilizing PythonPython has developed over time and has develop into the first alternative of builders in numerous fields. The aim of this e-book is to assist readers develop readable, dependable, and maintainable applications in Python.Beginning with an introduction to the idea of modules and packages, this e-book reveals how you should use these constructing blocks to arrange a fancy program into logical components and ensure these components are working accurately collectively.Utilizing clearly written, real-world examples, this e-book demonstrates how you should use modular methods to construct higher applications. A lot of frequent modular programming patterns are coated, together with divide-and-conquer, abstraction, encapsulation, wrappers and extensibility. Additionally, you will learn to check your modules and packages, tips on how to put together your code for sharing with different individuals, and tips on how to publish your modules and packages on GitHub and the Python Bundle Index in order that different individuals can use them. Lastly, you'll learn to use modular design methods to be a simpler programmer.What you'll be taught,解压密码 share.weimo.info
The Handbook of Financial Modeling: A Practical Approach to Creating and Implementing Valuation Projection Models The ability to create and understand financial models that assess the valuation of a company, the projects it undertakes, and its future earnings/profit projections is one of the most valued skills in corporate finance. However, while many business professionals are familiar with financial statements and accounting reports, few are truly proficient at building an accurate and effective financial model from the ground up. That's why, in The Financial Modeling Handbook, Jack Avon equips financial professionals with all the tools they need to precisely and effectively monitor a company's assets and project its future performance. Based on the author's extensive experience building models in business and finance—and teaching others to do the same—The Handbook of Financial Modeling takes readers step by step through the financial modeling process, starting with a general overview of the history and evolution of financial modeling. It then moves on to more technical topics, such as the principles of financial modeling and the proper way to approach a financial modeling assignment, before covering key application areas for modeling in Microsoft Excel. Designed for intermediate and advanced modelers who wish to expand and enhance their knowledge, The Handbook of Financial Modeling also covers: The accounting and finance concepts that underpin working financial models; How to approach financial issues and solutions from a modeler's perspective; The importance of thinking about end users when developing a financial model; How to plan, design, and build a fully functional financial model; And more. A nuts-to-bolts guide to solving common financial problems with spreadsheets, The Handbook of Financial Modeling is a one-stop resource for anyone who needs to build or analyze financial models. What you’ll learn Key financial modeling principles, including best practices, principles around calculations, and the importance of producing clean, clear financial models How to design and implement a projection model that allows the user to change inputs quickly for sensitivity testing The proper way to approach a financial modeling assignment, from project planning all the way through to the documentation of the model's findings and effectiveness How to model in Microsoft Excel, including how to set up an Excel environment, how to format worksheets, and the correct application of various modeling formulae The skills and knowledge they need to become more proficient financial modelers and differentiate themselves from their professional competitors. Who this book is for Written in a clear, concise manner and filled with screen grabs that will facilitate readers' comprehension of the financial modeling process, The Handbook of Financial Modeling is appropriate for intermediate to advanced financial modelers who are looking to learn how to enhance their modeling proficiency. Table of Contents Chapter 1. Financial Modeling: An Overview Chapter 2. Financial Modeling Best Practices Chapter 3. Modeling Functions and Tools Chapter 4. Planning Your Model Chapter 5. Testing and Documenting Your Model Chapter 6. Designing and Building Your Model Chapter 7. The Model User: Inputs Chapter 8. An Introduction to Finance and Accounting for Modelers Chapter 9. Managing and Evaluating a Business for Modelers Chapter 10. The Implications and Rules of Accounting for Modelers Chapter 11. Financial Based Calculations Chapter 12. Logical and Structural Based Calculations Chapter 13. How to Capture Document and Track Assumptions in Your Model Chapter 14. Modeling to Give the User Transparency Chapter 15. Model Testing and Auditing Chapter 16. Modeling Handover Dos and Don'ts. Chapter 17. Case Study: Building a Full Life Cycle Model Chapter 18. Additional Tools and VBA for Financial Models Chapter 19. What is the Future of Financial Modeling? Chapter 20. Keyboard Shortcuts Chapter 21. Finance and Accounting Glossary Chapter 22. Readymade Functions Chapter 23. Sample Outputs Chapter 24. Housekeeping Chapter 25. References
Core name: Xilinx LogiCORE Serial RapidIO Version: 5.5 Release Date: April 19, 2010 ================================================================================ This document contains the following sections: 1. Introduction 2. New Features 3. Supported Devices
Part 1 System thinking 15 Part 2 chapter 1 chapter 2 chapter 3 chapter 4 Form 67 4.1 introduction 67 4.2 Form in Architecture 67 4.3 Analysis of Form in Architecture 72 4.4 Analysis of Formal relationships in Architecture 77 4.5 Formal context 89 4.6 Form in Software Systems 91 introduction to System Architecture 16 Architecture of complex Systems 16 the Advantages of Good Architecture 16 Learning Objectives 19 Organization of the text 20 References 21 System thinking 22 2.1 introduction 22 2.2 Systems and emergence 22 2.3 task 1: identify the System, its Form, and its Function 27 2.4 task 2: identify entities of a System, their Form, and their Function 31 2.5 task 3: identify the relationships among the entities 40 2.6 task 4: emergence 42 2.7 Summary 47 References 48 thinking about complex Systems 49 3.1 introduction 49 3.2 complexity in Systems 49 3.3 Decomposition of Systems 53 3.4 Special Logical relationships 57 3.5 reasoning through complex Systems 58 3.6 Architecture representation tools: SysmL and OPm 59 3.7 Summary 62 References 64 analysis of System architecture 654 CoNTeNTS Part 3 Creating System architecture 191 chapter 5 4.7 Summary 96 References 96 Function 97 5.1 introduction 97 5.2 Function in Architecture 97 5.3 Analysis of external Function and Value 103 5.4 Analysis of internal Function 108 5.5 Analysis of Functional interactions and Functional Architecture 112 5.6 Secondary Value-related external and internal Functions 122 5.7 Summary 123 References 123 System Architecture 124 6.1 introduction 124 6.2 System Architecture: Form and Function 125 6.3 Non-idealities, Supporting Layers, and interfaces in System Architecture 135 6.4 Operational Behavior 139 6.5 reasoning about Architecture using representations 143 6.6 Summary 150 References 150 Solution-Neutral Function and concepts 151 7.1 introduction 151 7.2 identifying the Solution-Neutral Function 154 7.3 concept 156 7.4 integrated concepts 166 7.5 concepts of Operations and Services 171 7.6 Summary 172 References 173 From concept to Architecture 174 8.1 introduction 174 8.2 Developing the Level 1 Architecture 176 8.3 Developing the Level 2 Architecture 180 8.4 home Data Network Architecture at Level 2 184 8.5 modularizing the System at Level 1 187 8.6 Summary 189 References 190 chapter 6 chapter 7 chapter 8 chapter 9 the role of the Architect 192 9.1 introduction 192 chapter 10 9.2 Ambiguity and the role of the Architect 192 9.3 the Product Development Process 198 9.4 Summary 206 References 210 upstream and Downstream influences on System Architecture 211 10.1 introduction 211 10.2 upstream influence: corporate Strategy 212 10.3 upstream influence: marketing 215 10.4 upstream influence: regulation and Pseudo-regulatory influences 218 10.5 upstream influence: technology infusion 220 10.6 Downstream influence: implementation—coding, manufacturing, and Supply chain management 221 10.7 Downstream influence: Operations 224 10.8 Downstream influence: Design for X 226 10.9 Downstream influence: Product and System evolution, and Product Families 228 10.10 the Product case: Architecture Business case Decision (ABcD) 231 10.11 Summary 235 References 238 translating Needs into Goals 240 11.1 introduction 240 11.2 identifying Beneficiaries and Stakeholders 241 11.3 characterizing Needs 250 11.4 interpreting Needs as Goals 258 11.5 Prioritizing Goals 264 11.6 Summary 267 References 273 Applying creativity to Generating a concept 276 12.1 introduction 276 12.2 Applying creativity to concept 277 12.3 Develop the concepts 282 12.4 expand the concepts and Develop the concept Fragments 283 12.5 evolve and refine the integrated concepts 288 12.6 Select a Few integrated concepts for Further Development 291 12.7 Summary 293 References 298 Decomposition as a tool for managing complexity 300 13.1 introduction 300 chapter 11 chapter 12 chapter 13 CoNTeNTS 5 6 CoNTeNTS 13.2 understanding complexity 300 13.3 managing complexity 309 13.4 Summary 317 References 322 Part 4 architecture as Decisions 323 chapter 14 System Architecture as a Decision-making Process 325 14.1 introduction 325 14.2 Formulating the Apollo Architecture Decision Problem 326 14.3 Decisions and Decision Support 331 14.4 Four main tasks of Decision Support Systems 333 14.5 Basic Decision Support tools 334 14.6 Decision Support for System Architecture 340 14.7 Summary 342 References 342 reasoning about Architectural tradespaces 345 15.1 introduction 345 15.2 tradespace Basics 346 15.3 the Pareto Frontier 348 15.4 Structure of the tradespace 355 15.5 Sensitivity Analysis 359 15.6 Organizing Architectural Decisions 364 15.7 Summary 370 References 371 Formulating and Solving System Architecture Optimization Problems 373 16.1 introduction 373 16.2 Formulating a System Architecture Optimization Problem 375 16.3 NeOSS example: An earth Observing Satellite System for NASA 377 16.4 Patterns in System Architecting Decisions 379 16.5 Formulating a Large-scale System Architecture Problem 403 16.6 Solving System Architecture Optimization Problems 408 16.7 Summary 416 References 416