The Architects Forum (AF) consists of the experiment architects and the applications area manager (who chairs it), plus invited participants. Architects represent the interests of their experiment and contribute their expertise. Through this forum the experiments participate directly in the planning, management, and architectural and technical direction of applications area project activities.
The AF decides the difficult issues that cannot be resolved in open forums such as the applications area meeting. Most of the time, the AF will converge on a decision. If not, the applications area manager takes a decision. Such decisions can be accepted or challenged by the experiments. Challenged decisions go to the LCG Management Board (MB).
The AF meets once a month or so.
AF material prior to 2014 can be found at http://lcgapp.cern.ch/project/mgmt/af.html