Before a programmer creates an application it is important to draw up a scenario diagram. Use Case Diagram is a technique for developing software.
This diagram will show the relationship between the user and the system that has been designed.
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Use Case Diagram Is
According to the term, use case diagrams are activities that are interrelated with actors and systems. In general, it is defined as a technique that aims to develop software.
So, use case diagrams help determine the functional requirements of a system. This definition describes the relationship between the user and the system being designed.
Use Case Diagram Is
Use Case Function
There are several functions of the use case , including:
Shows Sequence of Activities
The first function of a use case diagram is to introduce the initial phase of each activity in a system being developed.
Describe the Business Process
Furthermore, this diagram depicts the sequence of business processes, thereby preventing errors.
Main Components of Use Case Diagrams
There are three components in the use case diagram, namely:
Actor
The first component is the actor. An actor is anything outside the system that uses system components.
Examples of actors, such as humans or devices that have a role in system operations.
System
The next component in the use case is the system. This component states the boundaries of the system in the relationships carried out by actors.
Use cases
Meanwhile, the use case is the final component as a general description of the function of a system. So, users and consumers can know every function of a system.
Example of Use Case Diagram
Previously, you had to create a diagram based on the written narrative, such as:
- Identify who will use the website.
- Select one of the users from the website.
- Determines who users will act on the site.
- Arrange a series of normal activities when using the website.
The following will explain an example of a use case diagram to facilitate understanding in developing software system requirements by analyzing:
- Educators see the attendance report.
- Can manage teacher data.
- Manage student data
- Educators print report results.
- Manage user data.
Looking at several components and their functions, it can be concluded that use case diagrams are important. Therefore, Telkom University also teaches its students.
