.NET Architecture Center: Overview: Data on the Outside vs. Data on the Inside

.NET Architecture Center: Overview: Data on the Outside vs. Data on the Inside: "Data on the Outside vs. Data on the Inside
An Examination of the Impact of Service Oriented Architectures on Data
By Pat Helland
Microsoft Corporation
Summary: Pat Helland explores Service Oriented Architecture, and the differences between data inside and data outside the service boundary. Additionally, he examines the strengths and weaknesses of objects, SQL, and XML as different representations of data, and compares and contrasts these models. "