A programming language developed at
MIT
by Douglas T. Ross and associates. Its TLA had a dual interpretation:
Automated Engineering Design language or
Algol
Extended for Design. It added pointer variables, dynamic
allocation, and
beads which anticipated the
struct concept in C.
Beads could be strung into plexes to build composite data structures.
Source: "The Automated
Engineering Design (AED) Approach to Generalized Computer-Aided Design", D.T. Ross, Proc ACM 22nd National Conference, 1967
and personal experience.