1. Patterns For Effective Use Cases;Adolph,2002
2. SBVR2UML: a challenging transformation;Afreen,2011
3. A smart algorithm for use-cases production based on name entity recognition;Al-Hashemi;Compu. Inf. Sci.,2015
4. The Elements of UML 2.0 Style;Ambler,2005
5. ATLAS group, LINA & INRIA: ATL (Atlas Transformation Language) User Guide. http://wiki.eclipse.org/ATL/User_Guide (2014).