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Chapter 9 – Software Evolution - Pace

Chapter 9 Software Evolution Summary 1 Chapter 9 Software Evolution Topics covered Evolution processes Change processes for Software systems Program Evolution dynamics Understanding Software Evolution Software maintenance Making changes to operational Software systems Legacy system management Making decisions about Software change 2 Chapter 9 Software Evolution Software change Software change is inevitable New requirements emerge when the Software is used; The business environment changes; Errors must be repaired; New computers and equipment is added to the system; The performance or reliability of the system may have to be improved.

• Source code translation –Convert code to a new language. • Reverse engineering –Analyse the program to understand it; • Program structure improvement –Restructure automatically for understandability; • Program modularisation –Reorganise the program structure; • Data reengineering –Clean-up and restructure system data.

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