Software practicability evaluating strategy based on grading idea

Aiming at software practicability evaluating problem, a strategy of software practicability evaluation is proposed based on grading idea. The proposed strategy is operable. In the strategy, a general software practicability evaluation system (SPES) is constructed firstly. Then, according to different object, the special SPES is constructed. When the general SPES is constructed, the software practicability level is defined firstly. Then, software practicability evidence model is designed. Finally, the software practicability level is judged to evaluate the software practicability based on the collected practicability evidence. In order to keep the SPES operable, the detail is given for reference.