Using a productivity index and collaboration index for validation of recommendation models in federated collaboration systems

A computer-implemented method comprises, generating, for each group of a plurality of groups of user accounts, a collaboration index value representing a first level of interaction of the each group with other groups of the plurality of groups, the interaction comprising a plurality of operations using a plurality of different computer-implemented applications or functions, generating, for each group of the plurality of groups, a productivity index value, each productivity index value representing a second level of productivity of the respective group, the productivity comprising creating or editing electronic documents using the plurality of different computer-implemented applications or functions, storing, in one or more data repositories, a plurality of first recommendation segments for a collaboration index, each of the first recommendation segments for the collaboration index indicating a range of collaboration index values, storing, in one or more data repositories, a plurality of second recommendation segments for a productivity index, each of the second recommendation segments for the productivity index indicating a range of productivity index values, assigning a first recommendation to each first recommendation segment for the collaboration index and to each second recommendation segment for the productivity index, determining a second recommendation for each group of the plurality of groups based at least on: the collaboration index value of the respective group, the productivity index value of the respective group, the plurality of first recommendation segments for the collaboration index, and the plurality of second recommendation segments for the productivity index and generating and causing displaying, at a computer associated with each group of the plurality of groups, a digital data display that indicates the second recommendation for the respective group.