1 / 13

Reverse Engineering

Reverse Engineering. Valeriya Perelman 12/10/04. Outline. Motivation Terminology Related work Approach discussion Challenges References. Motivation. Improving comprehensibility of software systems Modifying software while keeping design and source code synchronized Software re-use

romeo
Download Presentation

Reverse Engineering

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Reverse Engineering Valeriya Perelman 12/10/04

  2. Outline • Motivation • Terminology • Related work • Approach discussion • Challenges • References

  3. Motivation • Improving comprehensibility of software systems • Modifying software while keeping design and source code synchronized • Software re-use • Reengineering software on the design level

  4. Terminology Re-engineering Requirements Reverse engineering Forward engineering Analysis Design Implementation

  5. Related Work-- Commercial CASE Tools • UML-Based Static Reverse Engineering is supported by: • Rational Rose • Together • Poseidon • CodeLogic (Can generate control-flow and sequence diagrams per method given by user) Pros: • Fully automatic process of RE • Highly scalable Cons: • Dynamic aspect of design is not supported in the RE process(except for CodeLogic) • Not all the relations are identified • Multiplicity is not supported

  6. Related Work-- Research Prototypes • UML-Based • IDEA (Redocumentation of Java programs using UML class diagrams) • FUJABA (generating both dynamic and static aspects, requires specific code conventions): Example for an Association Comment /** * <h2>Associations</h2> * * <pre> * cardLeftcardRight * LeftClass ------------------------------ RightClass * leftRolerightRole * </pre> */

  7. Related Work-- Research Prototypes – cont. • Others • Rigi • Has its own format (RSF-Rigi Standard Format) • Semi-automatic • Implemented for C/C++ • Hierarchical clustering of related artifacts into subsystems • Supports model visualization • The RE based on certain modularity principles (such as data abstraction, low coupling among subsystems e.t.c.)

  8. Related Work-- Design Pattern-Based Design Recovery Techniques • Searching for minimal key structures: • DP++, KT, SPOOL • Searching for class structures (Pat, IDEA) • Searching based on fuzzy logic: • Technical Report tr-ri-01-222, University of Paderborn • Searching based on metrics (Object oriented, structural and procedural): • Wizzard for C++ by Kim, H., Boldyreff, C.

  9. Approach Discussion-- Input/Output • Input: Java source code (widely used, OOP, built in design patterns, interfaces) • Output: OPM design model (equal relation to Objects and Processes, hierarchical, giving simple way to express both dynamic and static aspects of the system)

  10. Approach Discussion-- Techniques • Static Analysis • Identifying Objects vs. Processes (every class is object except for…) • Filtering simple getters/setters • Detecting GOF patterns • Improving analysis to the OPM generated code using its’ javadoc.

  11. public class Hello { int main(){ System.out.println(“Hello World!”); return 1; } } Approach Discussion-- Simple Example

  12. Approach Discussion-- Challenges • Weakly typed containers (Sets, Hash tables, e.t.c.) • Scalability problem (number of patterns vs. processing, over-control flow analysis) • Language Independency • Re-Tour engineering

  13. References • Links: • http://www.rigi.csc.uvic.ca/UVicRevTut/F4rev.html • Overview on Reverse Engineering + list of RE Tools • http://www.iste.uni-stuttgart.de/ps/reengineering • Reengineering Bibliography • http://www.gupro.de/GXL/Introduction/intro.html • Graph eXchange Language format • Papers: • Design Pattern Recovery in Architectures for Supporting Product Line Development and Application Philippow, Streitferdt & Riebisch • Pattern-Based Design Recovery of Java Software Seemann & Wolf von Gudenberg

More Related