PROFS was an IBM office automation product that supported email, document creation and management, scheduling, spreadsheets, and could interface with databases. It used a menu-driven interface designed for IBM 3270 terminals and personal computers. PROFS provided a way for IBM employees to communicate virtually, making IBM's world smaller and more manageable. It improved employee productivity by nearly 12% and had a return on investment of 42% over five years. While effective for over a decade, PROFS became outdated in the early 1990s as users expected modern graphical interfaces. It was replaced in 1995 by CLEO, a system based on Microsoft software and client-server architecture.