Much of the information necessary to create a behavioral model can be obtained by observing the external manifestation of the existing ________________________?

A. when tools to support restructuring are disabled
B. when system crashes frequently
C. when hardware or software support becomes obsolete
D. subsystems of a larger system require few maintenance

Explanation: Re-engineering involves putting in the effort to make the system easier to maintain

A. Management of design documents and software code versions
B. Transformation of design records into application software
C. Compiling, interpreting or applying interactive debugging code
D. None of the mentioned

Explanation: Code editing tool serves the purpose of compiling, interpreting or applying interactive debugging code specific coding language or development tool.

A. GUIs
B. Candidate keys
C. Object model
D. All of the mentioned

Explanation: Therefore, the redevelopment of user interfaces has become one of the most common types of re-engineering activity. But before a user interface can be rebuilt, reverse engineering should occur.

A. Higher quality programs
B. Reduced maintenance effort
C. Software easier to test
D. All of the mentioned

Explanation: The answer is self explanatory.

A. Re-factoring
B. Restructuring
C. Forward engineering
D. Both Re-factoring and Restructuring

A. Cost Aided Software Engineering
B. Computer Aided Software Engineering
C. Control Aided Software Engineering
D. None of the mentioned

Explanation: CASE tools purpose is to make the work of software development and maintenance easier and more reliable.