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Detailed Design Step Description
In this step requirements are allocated to the system components, and interfaces are specified in detail. Detailed specifications are created for each hardware and software component to be developed and final product selections are made for off-the-shelf components.
Purpose
The key purpose of this step is to add details to the high level design so that off the shelf portions can be purchased and so that hardware or software development can begin (often as the result of selecting the winner of a bid process).
Activities
The first step in detailed design is to decide if a portion of the system will will be performed with off the shelf products or require new development The key activities are determined based on this decision. When the choice is off-the-shelf, the key steps are:
In the case of new development the following are some key steps:
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Develop detailed specifications of hardware or software that will be needed either for development by the project team, or to go out to a bid for the implementation. As part of the detailed specification, the detailed definition of interfaces is required.
Related Resources
Chapter 4.6 System Design Systems Engineering for Intelligent Transportation Systems, January 2007
http://ops.fhwa.dot.gov/publications/seitsguide/section4.htm#s4.5
Cost: Free
Component Level Detailed Design
Systems Engineering Guidebook for ITS, California Department of Transportation Division of Research and Innovation, January 2007
http://www.fhwa.dot.gov/cadiv/segb/views/document/Sections/Section3/3_5_3.htm
Cost: Free
Chapter 7: Design Phase - Systems Development Life Cycle Guidance Document, Department of Justice, January 2003
http://www.usdoj.gov/jmd/irm/lifecycle/ch7.htm
Cost: Free
Blanchard, B.S., System Engineering Management, 3rd Edition, Virginia Polytechnic Institute & State Univ., Blacksburg, Virginia, 2004
Cost: (price may range from $66 - $130 depending on retail source)
Buede D. M., The Engineering Design of Systems: Models and Methods, Wiley Inter-Science, 2000
Cost: (price may range from $54 - $110 depending on retail source)
Martin, J.N., Systems Engineering Guidebook: A Process for Developing Systems and Products, London: Chapman & Hall, 1997
Cost: (price may range from $83 - $100 depending on retail source)
Security Engineering Plan Template – Appendix S, Florida's Statewide Systems Engineering Management Plan, Version 2, Florida Department of Transportation, March 2005
http://www.floridaits.com/SEMP/Files/PDF_Report/ApxS.pdf
Cost: Free
Human Factors Engineering Project Plan Template – Appendix T, Florida's Statewide Systems Engineering Management Plan, Version 2, Florida Department of Transportation, March 2005
http://www.floridaits.com/SEMP/Files/PDF_Report/ApxT.pdf
Cost: Free
Note: Much of the material on this page was extracted from http://www.itslessons.its.dot.gov/its/benecost.nsf/LessonSystemsEng.
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