Author Question: Analysts should consider substituting single-attribute surrogate keys for large composite keys. ... (Read 48 times)

ARLKQ · **on:** Jul 7, 2018

Analysts should consider substituting single-attribute surrogate keys for large composite keys.

Indicate whether the statement is true or false

Question 2

What are the three basic steps involved in software reuse?

What will be an ideal response?

bimper21 · **Reply #1 on:** Jul 7, 2018

Answer to Question 1

TRUE
Explanation: While composite keys can technically be selected as an identifier, identifiers generally should be numeric and simple when possible.
CL

Answer to Question 2

There are three basic steps: abstraction, storage and recontextualizaton. Abstraction involves the design of software, whether it be reused or something from scratch. When software assets are developed or acquired, they must be made available to others. This is storage. Once an asset has been found, then recontextualization is done in order to make the asset more understandable to the developers who will need to use the software.