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Event Chain Diagrams - Two event chains, one of the triggers an activity. Event chains are shown as lines connecting arrows depicting events. Both curved line or line containing multiple straight segments are acceptable. If one event triggers another event, event chain lines will have an arrow, pointing to the triggered event.
By using event chain diagrams to visualize events and event chains, the modeling and analysis of risks and uncertainties can be significantly simplified. Example of event chain diagram with critical event chain and activity triggered by event. Another tool that can be used to simplify the definition of events is a state table.
These elements are used in event-driven process chain diagrams: Event Events are passive elements in event-driven process chains. They describe under what circumstances a function or a process works or which state a function or a process results in. Examples of events are "requirement captured", "material in stock", etc. In the EPC graph an ...
A life-cycle "model" is sometimes considered a more general term for a category of methodologies and a software development "process" is a particular instance as adopted by a specific organization. [ citation needed ] For example, many specific software development processes fit the spiral life-cycle model.
The Kimball lifecycle is a methodology for developing data warehouses, and has been developed by Ralph Kimball and a variety of colleagues. The methodology "covers a sequence of high level tasks for the effective design, development and deployment" of a data warehouse or business intelligence system. [1]
An important part of this approach is iterative development, where the entire software life-cycle is run multiple times during the life of a project. Every iteration witnesses the complete software development life cycle despite the iterations being of short duration that can vary between weeks to a few months. [1]
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The diagram emphasizes events that cross the system boundary from actors to systems. A system sequence diagram should be done for the main success scenario of the use case, and frequent or complex alternative scenarios. There are two kinds of sequence diagrams: Sequence Diagram (SD): A regular version of sequence diagram describes how the ...