The ACS Information Age magazine recently published an article by our local IT Pro Evangelist Michael Kleef.

An excerpt:
"There are many ways to achieve interoperability, ranging from (1) designing products with intrinsic interoperability-enhancing functionality, (2) implementation of industry standards (including both open standards and/or proprietary standards) in products and services, (3) licensing of an organisation's intellectual property to other interested parties that wish to interoperate, and (4) industry collaborations."

Read it here