Selection of clinical trial design

As a researcher I want to define the clinical trial design e.g., (only one group, comparison of 2 independent groups)

> At the start of the application, it should be possible to define the type of the trial. For the beginning two options should be available: 1-group design or 2-(parallel) group design. Dependent on the selection from a list, further functionality is available (e.g., random subsampling)

未指定任何文件或测试。首先定位应用程序入口点和当前的试验设置流程，然后跟踪配置如何影响后续功能。完成的标准是，应用程序在启动时提供单组设计和双平行组设计，并使相应的后续功能可用。

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