What is use case narrative?

What is use case narrative?

Use-case narrative – a textual description of the business event and how the user will interact with the system to accomplish the task.

What are the elements of a use case use case narrative )?

Use Case Narrative – Useful Tips

• Name and Unique Number.
• Brief Description.
• Preconditions.
• Basic Flow Of Events (aka Happy Path or Basic path)
• Alternative Flows.
• Postconditions.
• Other Elements. Additional Notes or Notes or Special Requirements. Actors Primary, Secondary or Others.

How do you write a use case specification?

Use Case Specification

1. Brief Description. In the first part, we briefly describe the use case, usually in 1 or 2 sentences.
2. Actors. In the next part, we mention the names of the actors who participate in the use case.
3. Pre-Conditions.
4. Basic flow.
5. Alternative flows.
6. Post-Conditions.

What is a use case narrative vs use case model?

The use case model consists of two artifacts: the use case diagram, which is a graphical representation showing which actors can operate which use cases, and the use case description (sometimes called the use case narrative), which is the text-based, detailed, step-by-step interactions and dialogue between the actor …

What are use cases use case model diagrams and use case narratives?

Use case diagrams show the use cases within the scope of the system and the actors in the environment with which each use case is associated. There is a least one use case narrative for each use case. A use case narrative is a structured narrative showing what the system must do to respond to a specific event.

How do you make a use case narrative?

To create the narrative we include the following:

1. A number and name that identify the use case.
2. The pre-and post-conditions describe the scope of each use case.
3. A matrix with what the actor does and how the system responds to each actor request.
4. Primary, alternate, and exception flows, which we explain below.

What are the components of use case diagram?

Use case diagram components

• Actors: The users that interact with a system. An actor can be a person, an organization, or an outside system that interacts with your application or system.
• System: A specific sequence of actions and interactions between actors and the system.
• Goals: The end result of most use cases.

What type of model is a use case model?

A use-case model is a model of how different types of users interact with the system to solve a problem. The most important model elements are: use cases, actors and the relationships between them. A use-case diagram is used to graphically depict a subset of the model to simplify communications.

What are the main items of use case specification?

A use case has:

• Only one goal.
• A single starting point.
• A single ending point.
• Multiple paths for getting from start to finish. i.e. Specify behavior for a variety of possible conditions. Each conditions may require specific action(s)

What are the basic model elements in use case model?

A use-case model consists of a number of model elements. The most important model elements are: use cases, actors and the relationships between them. A use-case diagram is used to graphically depict a subset of the model to simplify communications.

What should a use case include?

A use case is a written description of how users will perform tasks on your website. It outlines, from a user’s point of view, a system’s behavior as it responds to a request. Each use case is represented as a sequence of simple steps, beginning with a user’s goal and ending when that goal is fulfilled.