Sequence Diagram Tools Application Visualisation

Sequence diagram tool is used to provide the visualisation of the execution of JAVA applications, illustrated in a sequential diagram, as defined by the Unified Modeling Language (UML) notation. The execution data in the diagrams are acquired from the Java Profiling Agent or a J2EE Request Profiler, where the requirements of the deployment of the tool determine which agent you are going to use. The data is supplied by the Java Profiling system and this data is used to generate the execution flow of the Java application. This application would be running in a specific Java Virtual Machine (JVM) to which the agent is attached. Selective data is supplied by the J2EE Request Profiler, where this data is acquired through the request of the interception points of an e-business application. These request points consist of the request interceptors from Common Object Request Broker Architecture (CORBA), Enterprise JavaBean (EJB) containers, as well as the web containers. This results in execution flows, which represent interactions of business components such as servlets, JSP pages, and enterprise beans.

The interactions between the class instances in the application are represented by the sequence diagram. The interactions have the form of method calls and call returns. The implementation of the sequence diagram tool extends the definition to one which generalizes actors of interactions as well as their means. This would mean that, the tool will not only be providing the views presented by the interaction of classes and class instances, but also of those among threads, processes, and hosts. The need for a hierarchy of data representation is supported by this extended use of the execution flow notation. This becomes necessary for large scale, distributed traces.

Sequence diagram tool lets you open the views from within the profiling perspective, when you want to display graphically an application's execution flow. The execution flow could be viewed from different levels of abstraction. These levels could start with class interactions, through interactions among threads, or process interactions, up to host's interactions across a network. In monitoring e-business applications, the importance of these multi-level data representations becomes very obvious.

A sequence diagram tool is used to generate a visual representation of how objects interact within a system. There are several paths that the system uses in different set of use cases, and a sequence diagram tool captures the scenario of a single path when the system uses a particular use case or a set of use cases. The program can capture different such scenarios in the entire system. The objects, which form a part of the scenario, will be contained in a sequence diagram tool, and will also include the messages that are passed between the objects or participants of the scenario.

If you would need a simplified way to create or maintain your UML sequence and call flow, a sequence diagram tool provides you with the right editor to perform the tasks. The editor in the sequence diagram tool automatically takes care of your tedious layout and formatting tasks, providing you with the feature to create sequence diagrams much faster than with drawing programs, such as, Visio or even expensive UML tools.

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