To remain competitive, enterprises must become increasingly agile and
integrated across their functions. Enterprise models play a critical r
ole in this integration, enabling better designs for enterprises, anal
ysis of their performance, and management of their operations. This ar
ticle motivates the need for enterprise models and introduces the conc
epts of generic and deductive enterprise models. It reviews research t
o date on enterprise modeling and considers in detail the Toronto virt
ual enterprise effort at the University of Toronto.