GAN, a System for Generating and Analyzing Activity Networks GAN, a system for generating activity networks, is designed to save time in the preparation of activity networks and to deal conveniently with network programs. A defining description of a programming language designed for generating activity network from a set of standard networks is presented. Also, a general idea of a language for performing calculations on activity networks (scheduling activity networks) is given. CACM October, 1968 Schurmann, A. activity network, management project, standard network, network generator, network assembler, activity network analysis, network calculation, network program 3.50 3.53 4.11 4.12 4.29 CA681002 JB February 21, 1978 4:22 PM 1685 4 1685 1685 5 1685 1685 5 1685 1685 5 1685 3059 5 1685