In the beginning ,we do not know an

In the beginning ,we do not know anything about the database and the relations between the classes and the process of each usecase in the software therefore we went to design the entity-relationship ,class,and the usecase diagram because Modeling of uml has an importance in the migration for the following reasons :
 The database of software was organized by mobinets’s developers,using visual studio . there are many classes stored in the database , so to understand the various entities that are in a database and how they relate to each other ,we create the A entity-relationship that creates a graphical representation of the entities, and the relationships between entities.
 We reached to draw the usecase diagram through the discussions with mobinets developers, the use case diagram can portray the different types of users of a system and the various ways that they interact with the system.

Results (English) 2:

在开始的时候，我们并不知道数据库和类之间和每个用例的过程在软件因此我们去设计实体关系，阶级关系的话，和用例图建模的UML因为以下原因在迁移的重要性：
软件的数据库通过mobinets的开发商组织，使用Visual Studio。有许多类存储在数据库中，所以能理解的是在一个数据库中，它们是如何相互关联的各种实体，我们创建一个实体关系，创建一个图形表示的实体，以及实体之间的关系。
我们达到通过mobinets开发者讨论绘制用例图，用例图可以描述系统的用户的不同类型，它们与系统进行交互的各种方式。