IFPS (Interactive Financial Planning System) was a financial modeling language created by professor Gerald R. Wagner and his students of the University of Texas at Austin in the late 1970s. IFPS was marketed by Execucom, an Austin-based company started by Wagner. The company was acquired by Comshare in 1996.
IFPS was available for a variety of platforms, including IBM mainframes (VM/CMS), DECVAX, and DOS-based PCs. There were a number of versions, from about 1985 including a database for storing data separately from models. IFPS seems to have been an important inspiration for the Javelin financial modeling application.