Senior Design Project – SDP13 Problem Statement, Requirement Specifications and Block Diagram Professors C.V. Hollot & Christopher Salthouse Department of Electrical and Computer Engineering 13 September 2012 From Idea to Product ECE Department 2 Design processes to avoid … ECE Department 3 Some Intermediate Goals detailed block level design and test functioning modules assess needs title and abstract (statement of problem) due 20th September system integration and test analyze requirements requirements analysis 4th October design system system specs & block diagram due 4th October ECE Department 4 Assess Needs (Problem Statement-1) The problem statement has the following attributes: • relatively nontechnical • language of the customer • straightforward asses needs analyze design requirements design system ECE Department 5 Assess Needs (Problem Statement -2) Techniques for arriving at a problem statement: 1. 2. 3. 4. 5. 6. 7. 8. question the customer differentiate needs and wants explore project boundaries input/output analysis preview the user interface survey design attributes identify conflicting needs prepare a draft operations manual ECE Department asses needs analyze design requirements design system 6 Assess Needs (Problem Statement-3) Sections of the problem statement: 1. background 2. the design 3. deliverables of the design project asses needs analyze design requirements design system ECE Department 7 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. asses needs analyze design requirements design system ECE Department 8 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. asses needs analyze design requirements design system ECE Department 9 Implementation-Independent Requirements Puts toothpaste on toothbrush Safe Operable by Jimmy Reliable Fits on Bathroom Counter Portable Battery Powered Motorized Metal Enclosure Power Switch asses needs analyze design requirements design system ECE Department 10 Analyze Design Requirements (Requirement Specs - 2) Requirement Spec organization: • • • • • • • • • • ECE Department Background The Deliverables Special Restrictions Principle of Operation User Interface Input Output Draft User’s Manual Acceptability Test Product Costs asses needs analyze design requirements design system 11 Example 94 GHz Switching Circulator Design Project (SDP06) ECE Department 12 Design System (Block Diagram and System Specs) reject unworkable concepts requirement specification Development of concepts system design process Synthesis Analysis analyze design requirements system specs & block diagram ECE Department asses needs design system 13 Example: Bluetag (SDP10) – “a system for implementing a novel 'purchase at the rack' shopping experience in modern department stores.” ECE Department 14 Summary assess needs title and abstract (statement of problem) due 20th September analyze design requirements • relatively nontechnical • language of the customer • straightforward technical restatement of the problem statement requirement specification due 4th October design system Development of concepts system specs & block diagram due 4th October ECE Department Synthesis design is an iterative process Analysis 15 Bibliography - recommended reading ECE Department 16