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Project Selection and Needs Identification. 9/7/2010. Identifying Design Category. Creative New and innovative design Variant Variation of existing design Improve performance Add more features Routine Well known Combine creativity and new technologies Complex.

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Identifying design category l.jpg
Identifying Design Category

  • Creative

    • New and innovative design

  • Variant

    • Variation of existing design

    • Improve performance

    • Add more features

  • Routine

    • Well known

    • Combine creativity and new technologies

    • Complex


Design type differences l.jpg
Design Type Differences

  • Each Design category can fall in one of the following types

    • Technical evaluation project

      • Use of new technology

    • System test

      • Ensure meeting all the needs

    • Experimental design project

      • Find system characteristics

    • Analytical projects

      • Find failure modes and probability of failures

    • Applied research project

      • Creation of new technology based on existing ones

    • Fundamental Research Project

      • Discover new scientific principles


Project selection criteria questions to ask l.jpg
Project Selection Criteria – Questions to ask!

  • What are you trying to do? Articulate your goals

  • How is it does today? Limitations?

  • What difference does it make? Who cares?

  • What are the risks and payoffs?

  • How much will it cost?

  • How long does it take?

  • What are the benchmarks to check for success?


Project selection criteria creating ahp model l.jpg
Project Selection Criteria – Creating AHP Model

  • Determine the selection criteria

    • Your interests; technical complexity; creativity; innovation; marketing potential; etc.

  • Determine the weighting for each criteria

  • Create the AHP

  • Review the scores and adjust as needed!



Identify the needs l.jpg
Identify the Needs

  • What is the problem?

    • Don’t fall for a wrong problem

    • Make sure problem and solution are not given to you! – You have no design there!

  • Understand the problem and need

  • Do you have a design space – all possible solutions

Problem of

Eliciting

needs

Marketing

Spec.

Engineering

Spec.


Process to obtain voice of the customer l.jpg
Process to obtain Voice of the Customer

  • Gather raw data from users

    • What are the pros and cons of the existing process

    • Understand the process and problem

  • Interpret the raw data in terms of needs (Need)

    • What is the customer requirement (marketing specification)

    • Not quantified – they use terms such as: good, easy, user friendly, etc.

      • Design an audio device that is portable, easy to use with high quality. (extension) It should be water resistance, long lasting, small and drop resistance.

  • Quantify the needs (Tree)

    • Establish an objective tree

    • Ranking the relative importance of each specification

  • Understand the background and existing solutions (Survey)

    • Use all available resources: Internet, Technical, Journals, Government statistics, etc.


Example of objective tree l.jpg
Example of Objective Tree


Sources for survey l.jpg
Sources for Survey

  • EE Product Center, www.EEProductCenter.com. A website for locating electronic components and their manufacturers. It provides links to product datasheets and application notes. It has a keyword search engine and a tree structure search for finding components. For example, you can start with op amps and delve into subcategories such as precision and high-speed.

  • Circuit www.CircuitCellar.com. This companion website for the magazine is a great reference for designers. It emphasizes embedded systems and electronics projects with many tutorial articles and project ideas.

  • Datasheet Catalog, www.DatasheetCatalog.com. A datasheet source for electronic components and semiconductors.

  • Dr. Dobbs, www.ddj.com. The magazine and companion website are a resource for software developers that includes tips and tutorials.

  • EE Times, wLuw.EETimes.com. Industry newspaper for the electrical engineering field with information on current technology developments.

  • Electronic Magazine, wwro.EDNmag.com This is a free magazine for electrical design engineers that provides information on the latest products. The website has a number of categorized technical resources and a design ideas section.

  • OK Semiconductor, www.OnSemi.com. OK Semiconductor is a supplier of semiconductors for a wide range of applications, with a particular emphasis on power management. The website has a searchable database of over 15,000 components, and provides guidelines for component selection based on different applications.

  • The Thomas Register, www.ThomasRegister.com. This is a source for finding companies and products in Korth America. It allows searches for parts and equipment that may be used in a design project. It provides profiles of companies that meet the search criteria and describes the products they make.



Assignment l.jpg
Assignment

  • Individual: Pick a project topic (anything) – Define your different criteria in order for this project to be an interesting project to you (meeting a need, low cost, innovative, patentable, etc.) Create an objective tree for the topic. You must present this in class.

  • As a team agree on two possible project ideas. Create an objective tree for each project idea. Try to agree on which project seems to be more viable.


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