TEM Wiki

Wikipedia overview of Test Environment Management (TEM), admittedly it is a little bit limited at present, but good to see its worthy of a mention and now being recognized as a discipline in its own right:

Test Environment Management is a function in the software delivery process which aids the software testing cycle by providing a validated, stable and usable test-environment to execute the test scenarios or replicate bugs. [More]

Wiki Test Environment Management

Reference: https://en.wikipedia.org/wiki/Test_Environment_Management