Methods, systems, and computer program products are provided for managing best practices in modeling information technology (IT) services. An architecture for validating a service model using a plurality of best practices (PBPs) provides separation of concern between the service model and selection of best practices by enabling an independent selection of the service model and the PBPs. A best practice precedence (BPP) is configured to disambiguate conflicts between the PBPs and select a selected best practice (SBP) from the PBPs. A validation engine validates a compliance or non-compliance of the service model with the SBP. A refined service model is generated by combining selective portions of the SBP with the service model.
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