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A use case document is missing the 'actors' section. What is the likely impact?

medium🧠 Conceptual Q6 of 15
LLD - Design — Library Management System
A use case document is missing the 'actors' section. What is the likely impact?
AIt will be unclear who interacts with the system in that use case
BThe system will fail to compile
CThe database schema will be incorrect
DThe user interface will not load
Step-by-Step Solution
Solution:

  1. Step 1: Understand the role of actors in use cases

    Actors represent users or external systems interacting with the system.

  2. Step 2: Identify impact of missing actors

    Without actors, it is unclear who performs actions, causing confusion in requirements.

  3. Final Answer:

    It will be unclear who interacts with the system in that use case -> Option A

  4. Quick Check:

    Missing actors = unclear user roles [OK]
Quick Trick: Actors define who uses the system in a use case [OK]
Common Mistakes:
MISTAKES
  • Thinking missing actors cause code errors
  • Confusing actors with system components

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