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Related Content: CS605 - VU Lectures, Handouts, PPT Slides, Assignments, Quizzes, Papers & Books of Software Engineering II

Environment Assessment

The legacy system also needs to be assessed from an environment’s perspective. This involves looking at the supplier, failure rate, age, performance, support requirements, maintenance cost, and interoperability.

These angles are elaborated in the following paragraph:

Supplier stability: Is the supplier still in existence? Is the supplier financially stable and likely to continue in existence? If the supplier is no longer in business, is the system maintained by someone else?

Read more: CS605 - Software Engineering II - Lecture Handout 39

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Related Content: CS606 - VU Lectures, Handouts, PPT Slides, Assignments, Quizzes, Papers & Books of Compiler Construction

Three-Address Statement Types

Prior to proceeding with flow-of-control construct, here are the types of three-Address statements that we will use

• Assignment statement
  x = y op z
  op is a binary arithmetic or logical operation
• Copy statement
  x = y
  value of y is assigned to x



Read more: CS606 - Compiler Construction - Lecture Handout 38