OpenCert is not a monolithic platform. The OpenCert Tool Platform is composed of various contributions that cover the different features:
The main contributions come from the AMASS project. The reuse of existing open source projects shows the pragmatism of the approach, and the application of a best practices of software engineering and open source communities: “join and contribute to existing communities” instead of “reinventing the wheel”. As such, the OpenCert open source platform is a good example of the advantages of open source software that can be combined and extended more easily as all APIs and formats are open.