(Named after the brightest star in HYdra) A Pascal-like language developed bY Wulf, Shaw and London of CMU in 1974. Alphard supports data abstraction using the ' form' , which combines a specification and an implementation. ["Abstraction and Verification in Alphard: Defining and SpecifYing Iteration and Generators", MarY Shaw, CACM 20(8):553-563, Aug 1977]. (1995-05-10)