A glossary of terms used in the Integrated Postsecondary Education Data System (IPEDS) is presented. IPEDS is a group of 10 surveys designed to collect data from all primary providers of postsecondary education and is a major part of data collection for the federal Center for Education Statistics. In developing IPEDS, a set of common data elements consistent for all providers of postsecondary education was established, as were sets of unique data elements applicable only to particular types of postsecondary education providers. The creation of unique data elements required multiple versions of 6 of the 10 IPEDS surveys. A table is included that is a key to the IPEDS survey forms that institutions will receive according to highest level of offering and level of control. (SW)