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Modernizing Legacy Systems: Software Technologies, Engineering Processes, and Business Practices by Grace A. Lewis, Daniel Plakosh, Robert C. Seacord

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Chapter 12. Target Architecture

Target Architecture
 

The physician can bury his mistakes, but the architect can only advise his clients to plant vines.

 
 --Frank Lloyd Wright, Time Magazine (Oct. 4, 1953)

In a modernization effort, the target architecture represents the as-desired system, providing the technical vision for the modernization effort. Without this vision, similar operations might be implemented completely differently, making it impossible to predict, model, gauge, or control the qualities of the system. The target architecture can also help to identify and resolve potential design risks resulting from inconsistent or contradictory requirements.

In its current ...

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