求翻译：用例组的更重要的作用是为了从逻辑上分类和管理用例。测试集的作用是将准备一起执行的用例放在一块。测试集是用例执行的最小单位。是什么意思？

Use case groups a more important role is to logically classify and manage use cases. The role of the test set is ready to perform together on a use case. Test set is the smallest unit of execution with the case.

For example Group is the more important role in order to logically use classification and management. The Group is testing the role will be ready to work together to implement a piece of legislation in place. The Group is a test case for the smallest unit of implementation.

正在翻译，请等待...

Use case group is even more important role in logic, classify, and manage cases. Testing role is to prepare the implementation of the set of use cases together. Test set is the smallest unit case execution.

Use case group is even more important role in logic, classify, and manage cases. Testing role is to prepare the implementation of the set of use cases together. Test set is the smallest unit case execution.