Visualize it as A 3 Tier Stool.
The 3 Tier Stool Consisting of the 3 T's.
The first T - Teams of People.
Working with the second T - Tools and Technologies.
And the third T - Tradition. The Processes. Either Information processes or other processes. The usual ways of doing things in an Organization.
The 3 Tier Stool Mapped To CMMI-DEV
Carnegie Mellon University's - Software Engineering Institute (SEI) has created CMMI - Capability Maturity Model Integration which is a Process Improvement Maturity Model for the development of products and services. CMMI for Development called as CMMI-DEV provides a comprehensive integrated solution for development and maintenance activities applied to products and services.
In the SEI document titled CMMI for Development Version 1.2, in the 'Introductory Section' on Page 4 ; reference is made to the three critical dimensions that organizations focus on : people, procedures and methods and tools and equipment. The 3 T's of the 3 Tier Stool can thus be mapped to the SEI CMMI-DEV reference as follows :
3 T's Of the 3 Tier Stool mapped to CMMI-DEV - 3 Dimensions
Teams - People
Tradition - Procedures & Methods
Tools & Technologies - Tools & Equipment
System As 3 Tier Stool More Current Future
A Perspective - Should Information Systems be complex ? Maybe for their creators. But 'Not' for their business users.