![]() ![]() It is not only to view the dynamic nature of system flow but also to construct the executable system by using forward and backward techniques.Īctivity Diagram can be used in all stages of Software development and for various purposes.įollowing are the Indicators uses in Activity Diagram The results are successful because of data availability and related objects. The Actions Performed in the activity model based on other actions whether executed successfully or not. Basically, represents the flow from one activity to another activity. It is one of the most important UML diagrams to describe about the system flow. This describes the dynamic aspects of the system and operation of the system. This is very fruitful to place a clear picture in front of development team how to go and what are the priorities to consider. BA will communicate with stakeholder by using this diagram to make him clear all the things including he to raise the doubts if any-thing missed out of business needs or client need. The Activity diagram helps BA for communicating the process as per the business need and procedure of step-by-step what the client need. 2018.Why a Business Analyst use the Activity Diagram? Available hereģ.“UML Activity Diagram Tutorial.” Lucidchart, 18 Apr. “UML – Use Case Diagrams.” Tutorials Point, 8 Jan. “UML – Activity Diagrams.” Tutorials Point, 8 Jan. They help to model business requirements and to get a high-level understanding of the functionality of the system. These diagrams provide multiple advantages. The difference between use case diagram and activity diagram is that a use case diagram helps to model the system, user interactions while activity diagram helps to model the work flow of the system. Use case diagram and activity diagram are behavioral UML diagrams that describe the dynamic nature of a system. ![]() Summary – Use Case Diagram vs Activity Diagram This is the main difference between use case diagram and activity diagram. A use case diagram helps to model the system and user interactions while an activity diagram helps to model the workflow of the system. On the other hand, an activity diagram represents the series of actions or flow control in a system similar to a flowchart. What is the Difference Between Use Case Diagram and Activity Diagram?Ī use case diagram represents the user’s interaction with the system. An example activity diagram for student management is as follows. This diagram provides a high-level view of the system. The activities are the various operations of the system. It similar to a flowchart that represents the flow from one activity to another activity. What is Activity Diagram?Īn activity diagram is another behavioral diagram. Overall, the use case diagram helps to model the context of the system. Therefore, those use cases and print receipt use case has the dependency “extends”. After checking balance, deposit money or withdraw money, the customer can print a receipt. To withdraw money, the system should first verify the balance. When a use case requires the support of another use case, those two use cases have the dependency “include”. There are two dependencies called include and extends. Furthermore, use case diagrams can also represent dependencies. The bank is a secondary actor, and it performs the use case filling the ATM with cash. Lines represent the association between customer and the use cases. He performs use cases such as check balance, deposit cash and withdraws money. The user case diagram for an ATM is as follows. ![]() Moreover, a rectangle represents the system boundary. It can be a person, another system or an organization who has the goal to use the system. ![]() An ellipse represents a use case, and the name is written inside of it. Use case diagram is a behavioral diagram.Ī single use case represents the high-level functionality of a system. Structured modelling describes the static features of the system while the behavior modelling describes the dynamic nature of the system. They are structured modeling and behavior modeling. Side by Side Comparison – Use Case Diagram vs Activity Diagram in Tabular Form Two of them are use case diagram and activity diagram. These diagrams help conceptual modelling and make it simple and easier to understand the system. UML diagrams help to represent Object Oriented concepts. Object Orientation is the most common methodology to develop software solutions. It helps to build a pictorial representation of the software system. It is different from other programming languages such as C, C++, Java. UML stands for Unified Modelling Language. The key difference between use case diagram and activity diagram is that the use case diagram helps to model the system and user interactions while the activity diagram helps to model the workflow of the system. ![]()
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