SICES in 2017 requests ITSUR and deSoft to develop the SUREDSU platform, a web platform that will be developed to detect the educational expectations of students in the upper secondary schools of the state of Guanajuato. With this project, deSoft faces new challenges: making software for an external client, developing a platform aimed at users between 17 and 22 years old, and also developing software with a high level of concurrency. The members of deSoft, share a great interest in the quality of software generation, their quality strategy is certification in the CMMI-DEV model which was achieved in 2013 and which involves the application of software tests. To overcome the challenges faced with the SUREDSU platform, system tests have been applied: stress, usability, functionality, interface and data validation. Achieving identify the defects before delivery of the software and thereby meet the expectations of the client and end users.