The main objective of this Project is to perform a compatibility study betweenthree different communication network messages: TADIL-J's, CCSDS andAP04.This Project firstly consists on the research of documentation concerning eachcommunication network message. Subsequently the compiled documentationis cross-documented between communication networks for a furtherinteroperability study. The aim is to specify similarities and dissimilaritiesbetween the messages.Thanks to the stated processes it is then possible to implement the attestationto a java-based program, which is the responsible of showing and translatingbetween messages. The results obtained are the fruits of the interoperabilityand software simulation design processes. The last part of the memorydescribes verification process, which makes sure that the results obtained aresuitable according to the standards of the Project.The contents of this Project are purely explanative. It describes the establishedguidelines, the marked objectives, and the difficulties that appeared throughoutthe entire Project, the techniques to abroad the problems and the resultsobtained. The practical results of the work are contained in the annex of thisdocument.

The student must realize un analysis of message calogues employed in different networks searching for interoperability among them. The subset of messages shall be employed to develop a simulation that generates messages of each network and interchanges the interoperable message.