Engineering design is the process of devising a system, component, or process to meet desired...
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Chapter 1 – The Engineering Design Process
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. Among the fundamental elements of the design process are the establishment of objectives and criteria, synthesis, analysis, construction, testing, and evaluation. [ABET]
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ABET Definition of Engineering Design
What is a design process?
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Engineering Design Processes
The steps required to take an idea from concept to realization of the final system
Problem-solving methodologies that aim to developa system that best meets the customer’s needswithin given constraints
1. Define the problem to be solved.2. Acquire and assemble pertinent data.3. Identify solution constraints and criteria.4. Develop alternative solutions.5. Select a solution based on
analysis of alternatives.6. Communicate the results.
The Design Process
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Prescriptive Set down an exact process, or systematic recipe, for realizing a system Often algorithmic in nature and expressed on flow charts with decision logic
Descriptive Less formal in describing typical activities involved in realizing designs with less emphasis on exact sequencing
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General types of design processes
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A Prescriptive Process
Identify Problem& Needs
DetermineRequirements
Dorequirementssatisfy needs?
Yes
No
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A Descriptive ProcessProblem
Identification
Research
RequirementsSpecification
ConceptGeneration
Prototypeand
Construct
SystemIntegration
SystemTest
Deliveryand
Acceptance
Maintenanceand
Upgrade
Design
Project Time Schedule
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Flow Diagram for Engineering Design
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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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Summary