What are components in component diagram?
Relationships. Graphically, a component diagram is a collection of vertices and arcs and commonly contain components, interfaces and dependency, aggregation, constraint, generalization, association, and realization relationships. It may also contain notes and constraints.
What are the components of a UML diagram?
The major elements of UML component diagram – component, provided interface, required interface, port, connectors. by Kirill Fakhroutdinov. This document describes UML versions up to UML 2.5 and is based on the corresponding OMG™ Unified Modeling Language™ (OMG UML®) specifications.
What is port component diagram?
A port is a feature of a classifier that specifies a distinct interaction point between the classifier and its environment. Ports are depicted as small squares on the sides of classifiers. For example, Figure 3 shows a detailed component diagram which contains three components.
Why are component diagrams used?
The purpose of a component diagram is to show the relationship between different components in a system. For the purpose of UML 2.0, the term “component” refers to a module of classes that represent independent systems or subsystems with the ability to interface with the rest of the system.
What is component diagram and deployment diagram?
Component diagrams are used to describe the components and deployment diagrams shows how they are deployed in hardware. UML is mainly designed to focus on the software artifacts of a system. However, these two diagrams are special diagrams used to focus on software and hardware components.
What is EJB in Java?
The Enterprise JavaBeans (EJB) technology defines a model for the development and deployment of reusable Java server components, called EJB components. An EJB component is a nonvisual server component with methods that typically provide business logic in distributed applications.
How do I set the transaction attribute of an EJB component?
Each EJB component has a transaction attribute that determines how instances of the component participate in transactions. In EAServer, you set the transaction attribute in the Transaction tab of the Component Properties dialog box.
What is an EJB container?
EJB containerThe EJB specification defines a container as the environment in which one or more EJB components execute. The container provides the infrastructure required to run distributed components, allowing client and component developers to focus on programming business logic, and not system-level code. In EAServer, the container encapsulates:
What is an ATM use case diagram?
In particular, the interaction of bank customers with an automated teller machine (ATM) can be represented in a Use Case diagram. Before the software code for an ATM, or any other system design, is written, it is necessary to create a visual representation of any object-oriented processes.