Model Based Testing of End-to-End Chains Using Domain Specific Languages

In this paper, the author explains a new approach of model based end-to-end chain testing using scenarios with original and simulated equipment. The first goal is to automatically derive test data and test cases from the model, which is defined by a domain specific language. Several solvers can be attached to the conversion to quickly create a wide variety of stimuli for the system(s) under test. Furthermore, the system under test can be stimulated by either original equipment - which is connected to the test bench - or the test bench can simulate equipment and create inputs for the tested systems. Any mixture of simulated and original equipment is possible and can be changed on the fly. In the end, the results from the system under test are collected. These results can then be displayed back in the model. This method is currently used and improved in the project "E-Cab" in which the author is involved. Passengers travelling by plane are in the focus of this project. Complete services and service chains - from the booking at home up to leaving the destination airport - are created and used by many systems communicating with each other. The author expects advantages from testing these end-to-end chains with this approach.