
Eric Nelson explains what are ORM, EDM, and ESQL, what is the difference between LINQ to SQL and LINQ to Entities, which one should be used, accompanied by hands on demos showing how to use them.

Today we introduce the book “Web Service Contract Design and Versioning for SOA”, more exactly, chapters 20, 21, and 22 of the book addressing the issues related to service contract versioning.

Adrian Colyer and Karl Rumelhart discuss the VMWare acquisition of SpringSource, Cloud Foundry, public vs private cloud, virtualization, vSphere, Infrastructure as a Service and vSphere performance.

Eoin Woods explains how Barclays Global Investors (BGI) designed Apex to meet the challenges it faces and the Java technologies which were chosen for an architecture with variations on standard J2EE.

John Hughes contrasts Haskell and Erlang, outlining features that he finds more attractive in each of them. He also explains how QuickCheck works and what makes it different from unit tests.

This article examines and explains the often overlooked organizational reasons that agile fails.

Brian Oliver explains a number of data grid design patters: Command, Functor, Messaging, and Push Replication. He also mentions some traditional patterns used so far and Coherence Incubator.

Stefan Tilkov offers guidelines for the architect looking for a solution to his problem. Should it be a generic or a specific one? He compares several such solutions outlining the pros and cons.
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