A computer is provided for processing data from a plurality of studies of investigational products in a manner that allows the data from one study to be compared to one or more other studies. Each study includes a plurality of planned activities, a plurality of actual activities, and a plurality of assessments. The computer includes a memory, a database schema and a database. The memory is configured to store an operating system which includes an object-oriented database engine. The database schema is maintained by the object-oriented database engine of the operating system. The database schema has a plurality of uniquely defined database objects. For each study, the uniquely defined database objects include respective sets of objects that store the plurality of planned activities, actual activities, and assessments. The database is populated with data associated with the plurality of planned activities, actual activities, and assessments. The respective sets of objects that store the plurality of planned activities, actual activities, and assessments for each study share common attributes and relationships. Each planned activity, actual activity, and assessment has an associated data type that is the same for different studies.