When pursue efficiency, every detail matters.
An organization is a complex system. An operating model breaks this system into components to improve understanding and suggest opportunities for improvement. (с)Wikipedia
From operating model perspective, technology helps reaching desired level of standardization and integration.
If standard building blocks are integrated through standardized interfaces, you can replace any block. It is also easier (less costly) to replicate the blocks in different parts of the organization. Major risk - rigidity.
Diversified systems are more agile and adaptable, but may be difficult to coordinate and unify.
If we consider organizations' processes from these perspectives, they may be stable (efficient, predictable) or agile (react to changes faster).