Software design validation tool
Loren C. Carpenter, Leonard L. Tripp · ACM SIGPLAN Notices · 1975
DECA is a computer program which is used in conjunction with a top-down dominated design methodology. The program organizes, validates, and produces a document depicting the design of a software system. The use of DECA significantly enhances the quality of the software design. The quality of the design in turn significantly benefits the quality of the implemented software system.