A high level design and testing of celestial tracking software with the focus of reusability

In this paper, as an application in scientific research in spectral analysis of light, the celestial tracking software is proposed, designed, implemented and fully tested. As a development model, the process focuses on the reusability by using component approach. The testing case design deals with both cases of input parameters with constraint relations and without functional dependency. Our method of using function relations in the input domain partition provides a general idea that can be reused in testing case design.