An approach to software testability measurement

Software testability is becoming an important factor to be considered during software development and assessment, especially for critical software. We give software testability, previously defined by Voas, a new model and measurement which is done before random black-box testing with respect to a particular input distribution. We also compare our measurement results with the results simulated according to Voas´s model. It showed that our rough testability estimate provides enough information and will be used as guidelines for software development