1. A method for providing services that integrate with a customized enterprise-software tenancy, the method comprising: obtaining, by a first device, a reference data model and a tenant data model, said tenant data model customized by and/or for a user associated with a tenant of an enterprise-software provider; generating, by the first device, a relationship map for said tenant data model with respect to said reference data model; determining, by the first device, a mapped integrated-service data model using said relationship map such that said mapped integrated-service data model is expressed in terms of said tenant data model, wherein the mapped integrated-service data model is configured to facilitate integrating services with those of said enterprise-software provider; merging, by the first device, said mapped integrated-service data model and said tenant data model to obtain a tenant service context for said tenant; and commanding said enterprise-software provider to perform a first action using the tenant service context.