Professors C.V. Hollot & Christopher Salthouse Department of Electrical and Computer Engineering 13...
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Transcript of Professors C.V. Hollot & Christopher Salthouse Department of Electrical and Computer Engineering 13...
Professors C.V. Hollot & Christopher SalthouseDepartment of Electrical and Computer Engineering
13 September 2012
Senior Design Project – SDP13
Problem Statement, Requirement Specifications and Block Diagram
4ECE Department
title and abstract(statement of problem)
due 20th September
requirements analysis 4th October
system specs & block diagramdue 4th October
assessneeds
analyze requirements
designsystem
Some Intermediate Goals
detailed block level design and test
system integrationand test
functioning modules
5ECE Department
assesneeds
analyze design requirements
designsystem
The problem statement has the following attributes:
• relatively nontechnical• language of the customer• straightforward
Assess Needs (Problem Statement-1)
6ECE Department
Techniques for arriving at a problem statement:
1. question the customer 2. differentiate needs and wants3. explore project boundaries4. input/output analysis5. preview the user interface6. survey design attributes7. identify conflicting needs8. prepare a draft operations manual
Assess Needs (Problem Statement -2)
assesneeds
analyze design requirements
designsystem
7ECE Department
assesneeds
analyze design requirements
designsystem
Assess Needs (Problem Statement-3)
Sections of the problem statement:
1. background2. the design3. deliverables of the design project
8ECE Department
Problem Statement Example: Paste and Place
Students with severe disabilities face many challenges with tasks that we perform every day with little thought. For one student in the “Life Skills” program in West Springfield schools, his limited fine motor skills make it impossible for him to squeeze tooth paste onto his tooth brush. Our “Paste and Place” system will offer him independence by allowing him to brush his teeth without assistance. An easy-loading system will secure the toothbrush, move it under the toothpaste, squeeze the toothpaste, and present the toothbrush for use.
assesneeds
analyze design requirements
designsystem
9ECE Department
assesneeds
analyze design requirements
designsystem
Analyze Design Requirements (Requirement Specs - 1)
The requirement specifications can be thought of as a technical version of the problem statement. It should not propose a solution.
10ECE Department
Implementation-Independent Requirements
Puts toothpaste on toothbrush Safe Operable by Jimmy Reliable Fits on Bathroom Counter Portable
Battery Powered Motorized Metal Enclosure Power Switch
assesneeds
analyze design requirements
designsystem
11ECE Department
assesneeds
analyze design requirements
designsystem
Analyze Design Requirements (Requirement Specs - 2)
Requirement Spec organization:
• Background• The Deliverables• Special Restrictions• Principle of Operation• User Interface• Input• Output• Draft User’s Manual• Acceptability Test• Product Costs
13ECE Department
assesneeds
analyze design requirements
designsystem
Design System (Block Diagram and System Specs)
requirement specification
system specs & block diagram
Development of concepts
Synthesis
Analysis
reje
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nw
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able
conce
pts
systemdesign process
14ECE Department
Example: Bluetag (SDP10) – “a system for implementing a novel 'purchase at the rack' shopping experience in modern department stores.”
15ECE Department
title and abstract(statement of problem)
due 20th September
requirement specificationdue 4th October
system specs & block diagramdue 4th October
assessneeds
analyze design requirements
designsystem
• relatively nontechnical• language of the customer• straightforward
technical restatementof the problem statement
Development of concepts
Synthesis
Analysis
design is an iterative process
Summary