A user-friendly interface to specify temporal properties of concurrent systems

In model checking environments, system requirements are usually expressed by means of temporal logic formulas. We propose a user-friendly interface (UFI) with the aim of simplifying the writing of concurrent system properties. The tool is endowed with a graphical interface that supplies a set of patterns from the natural language; the defined patterns constitute a logic (UFL) that is adequate to express the classes of properties usually checked on actual systems. Moreover, UFI is integrated with the CWB-NC tool-kit which is a verification environment based on process algebras and the mu-calculus temporal logic; UFI supports the automatic translation of UFL formulas into mu-calculus formulas and save the translation in the format required by the CWB-NC. Nevertheless, UFI is a flexible tool that can be easily integrated with other environments.