Activity diagram is similar to a flowchart that visualizes flow from one activity to another activity. Activity diagram is identical to the flowchart, but it is not a flowchart. The flow of activity can be controlled using various control elements in the UML flow diagram. In simple words, an...
活动图描述系统元素的活动。UML活动图通过提供特定的场景内交流的图形化表示来补充用例。 活动图通常既能表示控制流又能表示数据流。 活动图提供了活动流程的可视化描述,可以是在系统、业务、工作流或其他过程中。这些图关注被执行的活动以及谁(或什么)负责执行这些活动。 一、基本概念 1. 活动节点 用来表示一个活动。
So in simple terms, an activity diagram shows 'How' while a Use case shows 'What' for a particular system, thus, activity diagrams are often in pairs with use cases.In terms of UML, we can use activity diagram for the following purposes, for example:...
Figure 15.35.An activity diagram for a simple sales process. For example, the join and the fork that immediately follow it could have been combined into a join/fork construct that would have appeared as a thick bar with two edges entering and two edges leaving. Combining a join and a fork...
Fig. 1. Activity-on-Arrow Diagram Where tasks are related, as in Tree Diagram families, it can be useful to number them (as Fig. 2) or otherwise indicate their relationships (for example, by naming their parents). Now when the cards are laid out within a network, the original tree str...
For example, if you use the activity diagram to describe a business process or an interaction protocol, a branch defines the range of options open to the user or to the interacting components. Use a Merge Node (5) to bring together two or more alternative flows that branched...
The following diagram shows the important state paths of an Activity. The square rectangles represent callback methods you can implement to perform operations when the Activity moves between states. The colored ovals are major states the Activity can be in. ...
(deploymentId, processDefinition.getDiagramResourceName()); // bpmn文件的流 InputStream bpmnInput = repositoryService.getResourceAsStream(deploymentId, processDefinition.getResourceName()); // 6、构造OutputStream流 File file_png = new File("d:/evectionflow01.png"); File file_bpmn = new File("...
How to Draw Activity Diagram UML activity diagrams are distinguished by the possibility to illustrate parallel activities. For example, the first activity diagram we had a look at above describes the necessity to prepare both a room and laptop for meeting a client that is shown by parallel arrows...
This sample was created in ConceptDraw PRO diagramming and vector drawing software using the UML Use Case Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park. This sample shows the types of user