图书交换的时序图 [英] sequence diagram for books exchange

问题描述

请任何人在附加的序列图中提出任何改进或更正的建议.该图是关于学生注册和搜索书籍的.

Please can anyone suggest any improvements or corrections in the attached sequence diagram. The diagram is regarding student registration and search book.

推荐答案

您不应该考虑在序列图中创建类.制作一个类图，也许是一个对象图，然后用创建的类的实例作为时间线制作序列图.在这里添加一个类图，没有它就不可能回答你的问题.

You should not think on classes creation being in sequence diagram. Make a class diagram, maybe an object diagram, and after that make your sequence diagram with instances of created classes as timelines. Add a class diagram here, without it it is impossible to answer your questions.

按原样，您正在使用用例图(代理)的元素，而不是类.这也是可以接受的.但是，您应该创建一个组件图并将组件用作时间线.

As is, you are working with elements of use case diagram (agents), not classes. It is acceptable, too. But then you should create a component diagram and use components as timelines.

因此，您的问题是您的图表至少比应有的少了一张.一个完整的图表，而不是一个块.

So, your problem is that you have minimally one diagram less than you should. A whole diagram, not a block in one.

因此，对于此任务，您可以使用以下几组图表:

So, for this task you can use the following sets of diagrams:

最全:用例+状态+组件+通信+序列+类+对象+复合结构

The fullest one: Use Case + State + Component + Communication + Sequence + Class + Object + Composite Structure

图表的广泛重构:组件 + 序列 + 类 + 对象

The wide refactoring of your diagram: Component + Sequence + Class + Object

极简重构:序列+类

当然，您可以制作多个提及的任何类型的图表.此外，一些图表如果很小，可以合并为一个 - 例如 UC+State.

Of course, you can make more than one diagram of any kind mentioned. Also, some diagrams if they are small, can be combined in one - UC+State, for example.

正常的流程是一张一张的图，回到之前的一张.可以同时创建同一级别的行为/结构图.如果你对一张图的某些想法有疑问，请尝试在另一张图上表达.

The normal process is creation one diagram after another, returning to the previous ones. Behaviour/structure diagrams of the same level can be created simultaneously. If you have problems with some thought on one diagram, try to express it on another one.

是的，您可以为用例的每个动作甚至活动/通信图绘制序列图.但是，如果您的前辈不让您这样做，则只需创建这些图表就足以更好地理解该过程.

Yes, you can do a sequence diagram for every action of use case or even of Activity/communication diagram. But if your seniors won't make you to do it, it is enough to create only these diagrams that are needed for better understanding of the process.

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