为了支持有条件和循环的构造(以区别于其他事物),UML使用了图框。图框是图的区域或片段,在图框中具有操作符或标签(例如loop)和保护信息(条件子句)。 复合片段有多种,在此主要介绍一下几种:条件判断、可选、循环、同步 a.条件判断:用于描述代码中if…else…这种结构 标记为“alt” 例如: b.可选:是一种特殊的...
1. 在解决方案浏览器中右键单击ModelingProjectDinnerNow项目根节点,在菜单中选择添加->添加新项 2. 在添加新项对话框中选择UML活动图模板,并定义名称为UMLActivityDiagramOrderDataflows.activitydiagram. 3. 从工具箱中拖拽两个活动参数图标到设计界面,水平并排放置,通过单击图标上的文本,使其可编辑。分别命名为Item ...
Fig. 6.5. Block diagram of an open control loop. 6.3.2 Closed-loop systems The closed-loop control is implemented in most controlled processes where feedback is a common and powerful tool when designing a control system (Fig. 6.6). The feedback loop is the tool that considers the system ...
ComponentDiagram ComponentFile CompositeTask 組合 COMPrivate ComputedColumn ComputedColumnDisabled ComputedColumnError ComputedColumnWarning 電腦 ComputerService COMWarning 條件式Loop ConditionalRule ConditionalRuleIfThen ConePreview ConfigurationEditor ConfigurationFile ConfigureComputer ConfigureDatabaseWizard ConfirmButton...
Create Messages in Sequence Diagram gate A gate represents the root architecture of the corresponding architecture model. Connect messages to gates to represent architecture ports. Create Sequence Diagram Gates annotation An annotation describes the elements of a sequence diagram. Use annotations to provide...
(test fixtures) must typically also be created although man-in-the-loop testing supplemented with limited automation is most common. System verification is not only a matter of demonstrating a set of required system properties. It is also a matter of demonstrating the absence of other properties ...
The faults that easily occur in programming learning are here categorized into five types: the program execution time exceeds expectations or does not break out of the loop; the wrong syntax is used for a specific function in the library; the array index value exceeds its boundary; the program...
Block diagram of the overall case study. 5.1. Closed Loop The closed-loop system of the cannulation simulator is composed of three essential parts, presented in Figure 21, which are the tubing system, the pumping system, and the sensors. The tubing system comprises two plastic and silicone ...
There are 3 main reasons as shown in the diagram below. Redis is a RAM-based data store. RAM access is at least 1000 times faster than random disk access. Redis leverages IO multiplexing and single-threaded execution loop for execution efficiency. ...
(GMII/MII) interface includes optional FIFO loopback to support debugging • Network statistics with RMON/MIB counters (RFC2819/RFC2665) • PHY interface support for Reduced Gigabit Media Independent Interface (RGMII) and Reduced Media Independent Interface (RMII) on HPS I/O pins • PHY ...