Much of the data needed to construct a behavioral model is gathered by observing external behaviors of legacy ________________________?
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Answer: B. interface
Explanation
Behavioral models of legacy systems are constructed by observing their external interfaces. External interface observation reveals how older software responds to various inputs. This observable behavior provides vital clues for reverse engineering undocumented systems. Black box analysis techniques study system inputs and outputs without viewing source code. Legacy applications often have missing documentation, requiring behavioral observation methods. Interface analysis bridges the knowledge gap when original developers are unavailable.
System integrators observe legacy application screens to map out missing business rules. API monitoring helps developers understand how older enterprise modules communicate. Behavioral models ensure replacement systems match the exact functionality of legacy software. Candidate keys belong to relational database normalization rather than behavioral modeling. Database structure reveals internal storage rather than dynamic external system behavior. None of the mentioned is incorrect because interface observation is the correct answer.
- Subject
- Computer Science
- Category
- Software Engineering
- Topic
- —
- Difficulty
- medium
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