Dear all, I am just wondering whether there are any accepted metrics for tracking a schedule-related performance of a group of projects, rather than an individual project. E.g. for example for an individual project there is a Schedule Performance Index. But what about a group of projects? Is there anything like that? We have to assume that if we have a portfolio of active projects, then at each individual given moment of time all projects will be at a different period of their life. Some of them will be just starting, others will be about to be finished.