John F. Sowa Quote

In 1992, the Zachman framework was extended by Zachman and Sowa (1992). In addition to answering the final three questions, they introduce the conceptual graph to represent the ISA and replace the model of the information system with the more generic system model reference for row 3 or the designer perspective.

Pallab Saha (2007) Handbook of Enterprise Systems Architecture in Practice. p. 402 - About