What is the difference between state and activity?
UML State machine diagram and activity diagram are both behavioral diagrams but have different emphases. Activity diagram is flow of functions without trigger (event) mechanism, state machine is consist of triggered states.
What is the difference between UML and activity diagram?
The Sequence diagram represents the UML, which is used to visualize the sequence of calls in a system that is used to perform a specific functionality. The Activity diagram represents the UML, which is used to model the workflow of a system. The Sequence diagram shows the message flow from one object to another object.
What is the difference between class diagram and state diagram?
A class diagram shows classes in their relation and their properties and methods. A state diagram visualizes a class’s states and how they can change over time. In both cases you are talking about diagrams which are only a window into the model. The class relations define how the single classes relate to each other.
What is the use of state diagram?
Overview. State diagrams are used to give an abstract description of the behavior of a system. This behavior is analyzed and represented by a series of events that can occur in one or more possible states.
What is UML state diagram?
What is State Diagram? A state diagram (also called state machine diagram, statchart and start transition diagram) is a type of diagram behavior diagram in UML. In most OO techniques, state diagrams are drawn for a single class to show the lifetime behavior of a single object.
What is the difference between state diagram and activity diagram?
Activity diagram is flow of functions without trigger (event) mechanism, state machine is consist of triggered states. People often confuse state diagrams with flowcharts. The figure below shows a comparison of a state diagram with a flowchart.
What is a state diagram in OO?
In most OO techniques, state diagrams are drawn for a single class to show the lifetime behavior of a single object. They describe all of the possible states that a particular object (or even the entire system) can get into.
What is a sequence diagram in UML?
A sequence diagram is used in UML to describe the analysis and design phases. It’s an interaction diagram that details how operations are carried out. A sequence diagram is often used to depict the chronologically-structured event flow through a use case.