Execution Group from TAEF(Test Authoring and Execution Framework)

http://msdn.microsoft.com/en-us/library/windows/hardware/hh439620%28v=vs.85%29.aspx

1 Test case was executed in sequence they are marked as [TestMethod] within test class

2 Test case marked as Execution Group was executed within one host process as a whole, is previous test fail, following test case will be marked as blocked.