What is the main success scenario in a use case specification?

What is the main success scenario in a use case specification?

• A. The scenario (sequence of steps) in which nothing goes wrong
• B. The event that gets the use case started
• C. Alternative sequences of steps branching from the main scenario
• D. Whatever the project needs for additional information

Answer: (A)

The main success scenario is the normal, error-free path through a use case—the sequence of steps where the goal is achieved as intended. It’s the primary flow, often called the basic or happy path, showing how the actor and system interact under typical conditions. This path begins with the triggering event and proceeds through the standard steps until the objective is met with a successful outcome. Branches that handle exceptions or alternative choices are separate extensions or alternative flows, not part of the main success path. So the option describing the sequence of steps with nothing going wrong best captures this idea.

The main success scenario is the normal, error-free path through a use case—the sequence of steps where the goal is achieved as intended. It’s the primary flow, often called the basic or happy path, showing how the actor and system interact under typical conditions. This path begins with the triggering event and proceeds through the standard steps until the objective is met with a successful outcome. Branches that handle exceptions or alternative choices are separate extensions or alternative flows, not part of the main success path. So the option describing the sequence of steps with nothing going wrong best captures this idea.