Reverse Engineering

1
Reverse Engineering

• By Nick, Jonathon, Scrat, and Jackie

2
Overview

• What is reverse engineering
• Why is reverse engineering useful
• Reverse engineering as a maintenance tool
• Reverse engineering tools
• Visio demonstration
• Rose demonstration
• Eclipse EclipseUML demonstration

3
What is Reverse Engineering?

• Definition of Reverse Engineering
• The process of taking something apart and
  analyzing its workings in detail, usually with
  the intention to construct a new device or
  program that does the same thing without actually
  copying anything from the original
• Software Engineering approach involves examining
  the structure of legacy code looking for classes,
  modules, etc.

4
Why is Reverse Engineering Useful?

• Helps understand legacy code when little or no
  documentation is available
• Maintain someone elses code
• Adapt open source code
• Provides a more abstract view of the system
• Allows companies to stay competitive by figuring
  out how the competitions software works
• Example First non-IBM implementation of BIOS

5
Reverse Engineering as a Maintenance Tool

• Fills in gaps in documentation provided by
  developers
• Provides a good base if the code needs to be
  totally redone.

6
Reverse Engineering Tools

• Microsoft Visio Visual Studio .NET
• Rational Rose
• IBM Eclipse Omondo EclipseUML

7
Visio / VS.Net

• Requires both Visio and VS.Net
• VS.Net initiates the reengineering
• Generalizations are the only connections made
• Just VS.Net supported languages

8
Rose

• Takes a bit of manipulation to create diagram.
• Adds associations, aggregations, and
  generalizations
• Supports ANSI C, C (with C structures), and
  JAVA/J2EE

9
Eclipse Omondo EclipseUML

• Freeware plug in for Eclipse.
• Shows dependencies, imports, and multiplicities,
  and generalization.
• Java only
• Synchronization between model and code

10
Questions?

• While( Questions )
• Answer
• Release Party! // not in book