The IPEDS Analytics: Delta Cost Project Database was created to make data from the Integrated Postsecondary Education Data System (IPEDS) more readily usable for longitudinal analyses. Currently spanning the period from 1987 through 2010, it has a total of 202,800 observations on 932 variables derived from the institutional characteristics, finance, enrollment, completions, graduation rates, student financial aid, and human resources IPEDS survey components as well as a limited number of outside sources. The maintenance and hosting of the IPEDS Analytics: Delta Cost Project Database was taken over by the National Center for Education Statistics (NCES) in 2012. The database was originally created by the Delta Cost Project (an independent, nonprofit organization) in 2007. For a detailed history of the development of the database under the Delta Cost Project, which covers the 1987-2009 database, please refer to its location on the NCES website, http://nces.ed.gov/ipeds/deltacostproject/download/DCP_History_Documentation.pdf. The database has been posted online in two parts for easier downloading; the first part contains the file for the 1987-1999 academic years and the second for the 2000-2010 academic years. These files are intended to be merged together to create the full 1987-2010 database. This document describes the design of the database and file updates for the IPEDS Analytics: Delta Cost Project Database 1987-2010.