1. What is Reverse Engineering?
A systematic methodology for analyzing the design of an existing device or system, either as an approach to study the design or as a prerequisite for re-design.

2. Reverse Engineering helps you to:
Develop a systematic approach to thinking about the engineering design of devices and systems
Acquire a mental data bank of mechanical design solutions

3. Levels of Analysis in Reverse Engineering
System-Wide Analysis
Subsystem Dissection Analysis
Individual Component Analysis

4. System-Wide Analysis Customer Requirements Engineering Requirements
Functional Specifications
Prediction of Subsystems and Components

5. Subsystem Dissection Analysis
Document Disassembly
Define Subsystems
Determine Subsystem Functional Specifications
Determine Subsystem Physical/Mathematical Principles

6. Individual Component Analysis
Repeat Dissection Steps to Individual Component
Define Component Material Selection and Fabrication Process
Suggest Alternative Designs, Systems, Components, and Materials

9. Reverse Engineering Reasons for reverse engineering:
Product analysis. - To examine how a product works, what components it consists of, estimate costs, and identify areas of potential patent infringement.
Digital update/correction. - To update the digital version (e.g. CAD model) of an object to match an "as-built" condition.
Security auditing.
Acquiring sensitive data by disassembling and analysing the design of a system component. .

10. Reverse Engineering Reasons contd …
Military or commercial espionage … Learning about an enemy's or competitor's latest research by stealing or capturing a prototype and dismantling it.
Removal of copy protection, circumvention of access restrictions.
Creation of unlicensed/unapproved duplicates.
Competitive technical intelligence (understand what your competitor is actually doing, versus what they say they are doing).

11. Reverse Engineering Reasons contd … Academic/learning purposes.
Learning: - learn from others' mistakes. Do not make the same mistakes that others have already made and subsequently corrected.
Lost documentation: - Reverse engineering often is done because the documentation of a particular device has been lost (or was never written), and the person who built it is no longer available.

12. NEED ASSESMENT AND STRUCTURING THE PROBLEM SEARCH

13. The terms for establishing needs
Existing short comings in product
Reduced cost
Easy use
More accurate
More efficient
Less wastage
Safety
Quality of life
Etc..

14. SAFETY AND QUALITY OF LIFE
TYPE WRITER FOR BLIND: Perkinson Brailler
KIDNEY DIALYSIS TREATMENT :
Problem1: Machine design
Problem2: Patient to be attached to machine every week
Problem 3: access to many at a time
Problem 4: Portable

15. IMPROVING THE EXISTING PRODUCT or SYSTEM
DC HEART DIFFIBRILLATOR:
Problem1: AC defibrillator
Problem2: DC defibrillator
Problem3: User friendly

16. OPPORTUNITIES FROM SCIENTIFIC ADVANCEMENTS
PERSONAL EXPERIENCE
Yours and mine
OPPORTUNITIES FROM SCIENTIFIC ADVANCEMENTS
The newly discovered technology or the scientific fact may give the scope for new products or the improvement in the existing products
Humidity control with cool air for color printing applications.
Problem 1: controlling the room temperature.
Problem2: Usage of ammonia
Problem3; Usage of hazardous freons

17. The engineers ideas should target the basic needs of society such as
SERVICE TO HUMANITY
The engineers ideas should target the basic needs of society such as
Food
Shelter
Heat
Health care
Transportation
Communication
By Garret Morgan