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Lecture 2: Project Requirements - PowerPoint PPT Presentation


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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
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
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
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
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
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
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.
sources for survey
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
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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