Abstract: Described is a technology in which an educational service provides contracts (an interface set) for calling functions that allow management of educational-related data. The interface set may be divided as interfaces to various services; roles associated with users of the educational service determine which interfaces/functions each user can call. The interfaces may include interfaces for calling course-related functions (e.g., of a course service), profile-related functions (e.g., of a profile service), membership-related functions (e.g., of a membership service) and task-related functions (e.g., of a task service).