2. Product Design Constraints and
Requirements
Design Engineers must consider a multitude of technical,
economic, social, environmental, and political constraints
when they design products and processes.
There must be clear evidence in your design project that
you have addressed the constraints that are relevant to your
project.
11. Ecological Constraints
• General environmental impact – impact on natural
resources, social resources
• Sustainability – political and commercial consequences,
implications for following generations
• Material selection –solid, liquid, gas, stability, protection,
toxicity
• Working fluid selection – fluid, gas, flammability, toxicity
12. Aesthetic Constraints
• Customer appeal – shape, color, texture, form, feel, smell,
surprise and delight features
• Fashion – culture, history, trends
• Future expectations – rate of change in technology,
trends, product families
13. Life-Cycle Constraints
• Distribution – means of transport, nature and conditions of
dispatch, rules, regulations
• Operation – quietness, wear, special uses, working
environments
• Maintenance – servicing intervals, inspection, exchange and
repair, cleaning, diagnostics
• Disposal – recycle, scrap
14. Legal/Ethical Constraints
• Regulations – OSHA, FAA, FDA
• Ethics – public safety, health, welfare and integrity
• Intellectual Property – patents, trademarks, copyrights
16. MidTerm Report
• Should describe MidSemester progress
• Think of it as a start on your final report
• Introductory and background material and
project description material will remain the
same
18. Report Format
• Summary
• The Problem
• Scope and Goals
• Solution
• Results
• Conclusions
• References
19. Summary
• Summarize the project and your work
• Don’t summarize the report
• Briefly introduce the problem
• Summarize the solution and conclusions
• Typically half a page in length
20. The Problem (Introduction)
• Introduce the design problem here
• Background information on the company or
research/laboratory area
• What is the project?
21. The Problem (Introduction)
• Introduce the design problem here
• Background information on the company or
research/laboratory area
• What is the project?
• Why is it of interest?
• What are constraints or requirements that
the solution must satisfy
• Briefly highlight the contents of the report
22. Scope and Goals
• Very specific description of your design
project and expectations
• What specifically was to be accomplished?
• Are you part of a team?
• Are you continuing a project?
• What is needed to finish the project?
23. Solution
• Select Titles and Subtitles for your project
• This is the place to describe the details of your
work process and issues encountered
• Discuss constraints and your management of
them - a special subsection would be best
• Include figures, graphs and photos
• Large amounts of information should be in an
appendix at the end of the report
24. Results
• Describe the results of your work including
your resulting design
• Include figures, drawings etc. as
appropriate
• Comment on the quality of your technical
results and design
25. Conclusions
• Have you achieved the goals of your design?
• Is the problem completely solved?
• Is there continuation after the semester ends?
• Will the project have to be continued by
another group?
• If more work is needed, describe it carefully
and suggest a completion schedule.
26. References
• References make your work credible
• Back up all of your facts with references
• Indicate references for any previous work on
your design project
• Indicate references for similar projects by
others
• Use references for any technical approaches
used in your solution
• State your references completely
27. Report Format
• Summary
• The Problem
• Scope and Goals
• Solution
• Results
• Conclusions
• References
28. Comments on Figures
• Figures are best inserted directly in the text
• Insert figures right after they are discussed
• Clearly number each figure and be sure to
discuss the figure by number
• As an alternate - place all the figures
together at the end of the report
29. Just to Summarize
• Think about CONSTRAINTS and report on
their effect on your design
• Make your report professional
• Think of the MidTerm report as a start on
your final report
• Make use of the suggested report format