<h2>
Answer:</h2>
Use case diagram
<h2>
Explanation:</h2>
A use case diagram is one of the dynamic diagrams used in Unified Modelling Language (UML). It is used to illustrate the set of actions, services, tasks and functions that a system needs to perform and those to be performed on the system. Use case diagrams help team members of a project to identify the main functions or features of the system as well as users and external systems that will interact with the system.
Use case diagrams have the following features;
(i) System: to depict the application itself. It is represented using a rectangular box.
(ii) Use case: to represent the system's functionalities. It is represented using an oval shape.
(iii) Actors: to represent the users of the system.
(iv) Relationships: to illustrate the relations between the actors and the use case of the system.
Tributaries are rivers that flow into another river or another lake. Tributaries are common in any country. Tributaries are like roots of lakes that flows to somewhere else. It is like a distribution of water that scatters through streams and lands to a larger body of water.
Answer:
direct material
Explanation:
if you need anymore help let me know
Answer:
vista
Explanation:
the other three I have used before
