A few months ago I published an article titled Ontology and Taxonomy of Services in a Service-Oriented Architecture in the Architecture Journal.
One table that did not make it into the article was the summary table below.
Category
State
Security
Errors
Build/Buy
Management
Messaging
Self
N/A
Limited
Buy
Centralized
Utility
User/App
Entity
System
Build
Capability
None/Self
App
Meet SLE and SLA
B/B/Lease
Activity
Per app
Process
User
Biz Logic
Check the article out and tell me what you think.