uml

Difference between Composition and Dependency in class diagram?

由 妖精的绣舞 提交于 2019-12-20 05:47:10
问题 I know, somebody had asked the same question about this case, but i still don't really get it, i need a specific answer. Thank you :D 回答1: Since Gangnus did not correctly explain the meaning of composition, I'll have to do it. As explained by Gangnus, an aggregation is a special form of association with the intended meaning of a part-whole-relationship , but without a precise semantics (the UML spec says: "Precise semantics of shared aggregation varies by application area and modeler"). For

include and exclude in Activity diagram

由 会有一股神秘感。 提交于 2019-12-20 04:36:34
问题 How to show «include» and «extend» in activity diagram? And how can I show types in activity diagram. E.g. Vehicle is of 2 types i.e Bike and Car. So how can I show this in activity diagram? 回答1: (This answer is independent of whether or not you should use «include» or «extend».) A use case can be specified any number of ways. For some examples, you can use natural language, tables, or activity diagrams. It appears that you would like to specify use cases as activities. In that case, each use

Difference between behavior of fork/join nodes toward tokens with other nodes of Activity diagrams

由 穿精又带淫゛_ 提交于 2019-12-20 04:25:09
问题 As Thomas Kilian described here, normal behavior of nodes of Activity diagrams with tokens is: A node becomes active when at all of its incoming InformationFlow connectors a token has arrived. When the node finalizes it sends single tokens along all its outgoing InformationFlow connectors. But also he added: There are special nodes like fork and merge which behave a bit different I know that behavior of "merge" node differs because it becomes immediately active by receiving first token and

Can a use-case include and precondition the same other use-case?

由 为君一笑 提交于 2019-12-20 04:19:30
问题 Let's take the example of logging in and add item as two use case of an items management system. the requirements of the client are : (he needs/wants to : ) Gain legitimate access to the resources of the system; Add Item (create one). we also know that no unauthenticated user should use the system ! My questions are : 1) Is " Gain Access " a use case ? A precondition to other use-cases ? Or Both ? (knowing that by naming the use-case " Gain Access " and not "Logging in" I wanted to highlight

Class diagram - dependency or association from class to interface?

由 喜夏-厌秋 提交于 2019-12-20 03:10:42
问题 I have a question regarding creating a class diagram where I have used dependency injection. I have following code example: public class ReservationController : ApiController { private readonly IGetReservationService _getReservationService; public ReservationController(IGetReservationService getReservationService) { _getReservationService = getReservationService; } // GET list of all reservations public List<ReservationViewModel> GetReservations() { return _getReservationService

Java UML Automated generation for NetBeans 7.0 [closed]

由 血红的双手。 提交于 2019-12-20 02:11:20
问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . I need to make UML diagrams of my project. How could I do it in NetBeans 7.0? The program or plugin has to do it automatically. 回答1:

How to generate Java from online UML models?

由 大兔子大兔子 提交于 2019-12-20 01:08:59
问题 I need to create UML class diagram online and to generate Java code from it. Drawing tools such as cacoo don't allow to generate code as they are not real UML modelers. Does anybody know an UML online tool that generates Java code? Thanks for your help~~ 回答1: You should take a look at GenMyModel an UML online tool GenMyModel allows you to create an UML class diagram online and generate Java code from it. 回答2: There is one generator that allows you to produce Java source code from a UML model.

How to generate Java from online UML models?

由 人盡茶涼 提交于 2019-12-20 01:08:01
问题 I need to create UML class diagram online and to generate Java code from it. Drawing tools such as cacoo don't allow to generate code as they are not real UML modelers. Does anybody know an UML online tool that generates Java code? Thanks for your help~~ 回答1: You should take a look at GenMyModel an UML online tool GenMyModel allows you to create an UML class diagram online and generate Java code from it. 回答2: There is one generator that allows you to produce Java source code from a UML model.

浅谈UML中常用的几种图——用例图

由 泪湿孤枕 提交于 2019-12-19 21:57:42
1.UML简介 　　统一建模语言（ Unified Modeling Language， UML）又称标准建模语言，是始于 1997年的一个 OMG标准，它是一个支持模型化和软件系统开发的图形化语言，为软件开发的所有阶段提供模型化和可视化支持，包括由需求分析到规格，到构造和配置。 　　 *注：OMG, Object Management Group 对象管理组织 2.UML常见图分类 　　 UML从考虑系统的不同角度出发，定义了 用例图 、 类图 、对象图、包图、状态图、活动图、 序列图 、协作图、构件图、部署图等 10种图。 　　常见的UML图有用例图（Use Case Diagram）、类图（Class Diagram）和序列图（Sequence Diagram）。下面也将主要阐述这三种UML图. 3.用例图 　　用例图，展现了一组用例、参与者（ actor）以及它们之间的关系。用例图从用户角度描述系统的静态使用情况，用于建立需求模型。 参与者（Actor） 　　在系统外部与系统直接交互的人或事物。需要注意以下两点： 　　1）参与者是角色而不是具体的人，它代表了参与者在与系统打交道的过程中所扮演的角色。所以在系统的实际运作中，一 个实际用户可能对应系统的多个参与者。不同的用户也可以只对应于一个参与者，从而代表同一参与者的不同实例。 　　2）参与者作为外部用户（而不是内部

UML（1）——概述

由 走远了吗. 提交于 2019-12-19 20:15:12
UML 是一种对软件系统进行规约、构造、可视化和文档化的，具有广泛适用性的建模语言。 （一）视图 UML 通过模型来描述系统的结构、静态特征、动态特征（行为），从不同视角为系统的架构建模形成系统的不同视图。其中的视图主要包括静态视图、用例视图、交互视图、实现视图、状态机视图、活动视图、部署视图、模型管理视图。 （1） 静态视图 静态视图是对在应用领域中的各种概念和系统实现相关的内部概念进行的建模。它不设计与时间有关的行为，是静态的。静态视图中的元素代表现实系统中有意义的概念。静态视图描绘的是客观世界的基本认知元素，是建立系统所需要的概念的集合。 （2） 用例视图 用例视图用于描述系统的参与者与系统进行交互的功能，是系统功能的模型图。用例视图用于捕获系统、子系统和用户执行的行为，将系统描述为参与者对系统的功能需求，其中的需求功能就是用例。 （3） 交互视图 交互视图描述了执行系统功能的各个角色之间互相传递消息的顺序关系，是描绘角色或功能交互的模型。表达对象之间协作完成一个功能的叫协作图；执行系统的和个角色之间相互传递消息的顺序关系叫序列图。 （4） 状态机视图 状态机视图通过对象的各种状态建立模型来描述对象随时间变化的动态行为。 （5） 活动视图 用于描述执行算法的工作流程中设计的活动。 （6） 物理视图 物理视图对应自身的实现结构建模，提供了将系统中的类映射为物理构件和节点的机制
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