AARC I, the first subproject of the AARC initiative, laid the foundation for the development of a common AAI infrastructure. It ran from May 2015 to April 2017 and focussed on identifying the requirements and challenges associated with creating an interoperable AAI. During this phase, basic concepts and architectures were developed that make it possible to integrate different identity systems and services. Important milestones were the development of the so-called AARC Blueprint Architecture (BPA) and best practices, which formed the framework for further developments in the AARC project. A pilot programme was also launched to test the feasibility and effectiveness of the proposed solutions. The 20 project partners included NREN, GÉANT, EGI, PRACE and EUDAT as well as specific virtual research infrastructures such as ELIXIR and DARIAH.
The follow-up project, AARC II, ran from May 2017 to April 2019 and built upon the results of its predecessor. The aim was to further refine the developed architectures and solutions and promote their implementation in various research networks. A central element of AARC II was the development of policy frameworks that enable the various organisations to design their own AAI policies in line with the general guidelines. To this end, other specialised infrastructures from particle physics, the geosciences and life sciences to the humanities were actively involved. Tools and training were also provided to support the implementation of AAI solutions in the respective infrastructures. AARC II also placed a strong focus on promoting collaboration between different research communities and AAI operators.