Which of the following steps may not be used to define the existing data model as a precursor to re-engineering a new database model:(a) Build an initial object model(b) Determine candidate keys(c) Refine the tentative classes(d) Discover user interfacesI have been asked this question in a national level competition.The query is from Reverse Engineering topic in chapter Software Engineering types of Software Engineering

Which of the following steps may not be used to define the existing da

1.	Which of the following steps may not be used to define the existing data model as a precursor to re-engineering a new database model:(a) Build an initial object model(b) Determine candidate keys(c) Refine the tentative classes(d) Discover user interfacesI have been asked this question in a national level competition.The query is from Reverse Engineering topic in chapter Software Engineering types of Software Engineering
Answer» CORRECT choice is (d) Discover user interfaces The explanation is: Once INFORMATION defined in the preceding steps is KNOWN, a series of transformations can be APPLIED to map the OLD database structure into a new database structure.

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