answersLogoWhite

0

Use Case diagrams are behavior diagrams of UML used to describe a set of actions (Use Cases) that some system or systems (Subject) should or can perform in collaboration with one or more external users of the system (Actors).

Each use case should provide some observable and valuable result to the actors or other stakeholders of the system.

Use case diagrams are a means for specifying:

  • (external) requirements on a system under design, required usages of a system - to capture what a system is supposed to do;
  • the functionality offered by existing system -- what system can do for clients;
  • requirements the specified system poses on its environment - by defining how environment should interact with the system so that it will be able to perform its services.
User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

Stair case wiring diagram?

potential difference


What is the purpose of a robustness diagram?

It is a hybrid between Use Case and Sequence Diagram


What is Difference between include and extend in use case diagram?

the include relationship implies that the included use case must be enacted, whereas the extend relationship implies that the extending use case may be enacted.


What are the difference between Rational Unified Process and Spiral model?

It's uml base model usely use of use case design and spiral model Risk driven approchs


What is the difference between activity diagram and sequence diagram?

Activity diagram shows the work flow from start point to the end point detailing many decision points. Sequence shows detail flow of specific use case and it also shows interaction between actors, system and system components


What is the difference between a use-case diagram and class diagram?

Class diagram is UML structure diagram which shows structure of the designed system at the level of classes and interfaces, shows their features, constraints and relationships - associations, generalizations, dependencies, etc.Communication diagram (called collaboration diagram in now obsolete UML 1.x) is an interaction diagram which shows interactions between objects and/or parts (represented as UML lifelines) using sequenced messages in a free-form arrangement.So, the major difference is that class diagram shows static structure of the system while communication (collaboration) diagram shows system behavior as sequenced exchange of messages between objects.


Chevy model np243c transfer case diagram?

I am trying to find out if this is the correct t-case for my 98 jimmy 4l60e/4.7 vortec


What is a server's physical case?

what is the difference between a server physical case and a client case


What are the four basic parts of a use case model?

The four basic parts of a use case model are actor, use case, system boundary, and relationships between actors and use cases. Actors are users or systems interacting with the system, use cases represent user goals or tasks, the system boundary defines the scope of the system, and relationships show how actors interact with use cases.


What is the difference between 9mm and 380acp?

Case length.


What is the difference between worst case and best case scenario of sorting techniques?

good


What is the difference between dynamic loading and late binding?

or not. ln case first string occlrs multiple times in second string, it reporis the number of times it occurs in second. Diflerentiate between dSrnamic loading and late binding. What are rarious visibility modes in C++ ? Explain each ol them with suitable examples. Differentiate between class diagram and interaction diagram. Also list their