Implementing
Requirements
Management: A Task for
Specialized Software Tools
or PDM Systems?
Johan Malmqvist
Chalmers University of Technology, Machine and Vehicle Design, SE-412 96 Göteborg, Sweden
IMPLEMENTING REQUIREMENTS MANAGEMENT
Received May 25, 2000; Accepted September 15, 2000
ABSTRACT
This article argues that product models that include the requirements posed on the product
have many potential benefits. For example, they facilitate managing the design process so
that its goals are met by enabling a continuous follow-up of the requirements satisfaction
status and by supporting the analysis of the consequences of design changes. The paper first
introduces a concept for a requirements-driven integrated product and process model. The
conditions for support for requirements management are discussed based on this model.
Finally, two different ways of implementing the concept: by using specialized Systems
Engineering/Requirements Management tools or by using PDM (Product Data Management)
systems are analyzed. © 2001 John Wiley & Sons, Inc. Syst Eng 4:49-57, 2001
1. INTRODUCTION
Many firms have today formulated a vision where they
aim to develop products based on virtual product and
manufacturing process models that enable a “total”
digital representation of the future product and its
manufacturing process. This means that the model must
be able to manage requirement information, function
structures, CAD models, drawings, NC programs,
analysis models, assembly instructions, and other data.
It is, however, well known that one of the most severe
limitations of current CAD/CAM/CAE/PDM systems
towards realizing such visions is the lack of functional-
ity for requirements management (RM). This results in
limited support for the early phases of the design proc-
ess where requirements are identified and conceptual
solutions are evaluated against the requirements, as well
as for later phases where requirement changes may
necessitate redesign.
Regular Paper
Contract grant sponsor: Swedish National Board of Technical De-
velopment (NUTEK)
Systems Engineering, Vol. 4, No. 1, 2001
© 2001 John Wiley & Sons, Inc.
49
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