BABE is an expert system for bridge designers. And to some people, it’s worth singing about. Read about it in the study:
“BABE: An Expert System for Structural Design of Bridge Abutments and Piers,” H. Zheng, G. K. Mikroudis, S. Pamukcu, and Z. X. Hu, Computer Utilization in Structural Engineering, 1989, pp. 372-381.