Automatic generation of requirements documents is an essential feature of the model-driven CASE tools such as UML and SysML designers. However, the quality of the generated documents from the current tools highly depends on the attached descriptions of models but not the quality of the model itself. Besides, if the stockholders ask to generate ISO/IEC/IEEE 29148-2018 conformed documents, extra templates are required. In this paper, we propose a CASE tool named RM2Doc, which can automatically generate ISO/IEC/IEEE 29148-2018 conformed requirements documents from UML models without any templates. In addition, the flow description can be generated from a use case without additional information. Moreover, it can automatically generate the semantic description of system operations only based on the formal expression of OCL. We have conducted four case studies with over 50 use cases. Overall, the result is satisfactory. The 95% requirements documents can be generated from the requirements model without any human interactions in 1 second. The proposed tools can be further developed for the industry of software engineering.

The tool can be downloaded at http://rm2pt.com/rm2doc, and a demo video casting its features is at https://youtu.be/4z0Z5mrLfBc