ch01 eng design_process
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Revised by S.P. Chew (2009)
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By the end of this chapter, you should: Understand what is meant by engineering design. Understand the phases of the engineering design
process. Be familiar with the attributes of successful
engineers.
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Engineering design is the process of devising a system, component, or process to meet desired needs. It is a decision-making process (often iterative), in which the basic sciences, mathematics, and engineering sciences are applied to convert resources optimally to meet a stated objective.
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What is a design process?
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Among the fundamental elements of the design process are the establishment of objectives and criteria, synthesis, analysis, construction, testing, and evaluation.
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Prescriptive exact process or systematic recipe, for realizing a
system Algorithmic in nature and expressed on flow
charts with decision logic Descriptive Less formal, describing typical activities involved
in realizing designs with less emphasis on exact sequencing.
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Is this prescriptive or descriptive?
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Prescriptive or descriptive?
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What is the value of the design process?
How much does it cost to correct problems as process proceeds?
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Problem ID & customer needs Research/Problem Analysis Requirements Specification Concept Generation & Evaluation Design
Phase Prototype, Construct, & Test
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Engineering design is an iterative process. Design problems are open-ended with
many potential solutions. Design processes represent best
practices for realizing a system. Design processes may be prescriptive or
descriptive.
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