Software re-engineering involves examining, analyzing, and altering an existing software system to reconstitute it in a new form to improve maintainability and reliability. It occurs at both the business and software levels through approaches like big bang, incremental, or evolutionary. Risks include issues with tools, processes, applications, technology, strategies, and personnel.

1. Software Re-EngineeringBy Abdul Wahid

2. Introduction

3. Objective

4. Business Re-engineering process

5. Software Re-engineering process model

6. Re-engineering Approach

7. Big Bang

8. Incremental

9. Evolutionary

10. Risks Involved

11. SummaryContents

12. Re-engineering is the examination, analysis and alteration of an existing software system to reconstitute it in a new form, and the subsequent implementation of the new formIntroduction

13. Re-engineering encompasses a combination of other processesreverse engineeringRe-documentation Re-structuring translationforward engineeringRe-engineering

14. Re-structuring or re-writing part or all of a legacy system without changing its functionalityApplicable where some but not all sub-systems of a larger system require frequent maintenanceRe-engineering involves adding effort to make them easier to maintain. The system may be re-structured and re-documentedSystem Re-engineering

15. Reorganising and modifying existing software systems to make them more maintainableSoftware Re-engineering

16. Preparation for functional enhancementImprove maintainabilityMigrationImprove reliabilityObjectives

18. Copyright pressman

19. Software Re-engineering process modelCopyright pressman

20. Big BangIncrementalEvolutionaryRe-engineering Approach