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One of the ways in which ITIL 4 differs from its predecessor is in its increased emphasis on supplier management. ITIL V3 defined ‘4 Ps’ (People, Products, Processes and Partners) of Service Management. In ITIL 4 these become the ‘4 Dimensions of Service Management’, and there is an increased focus on partners and suppliers – an important and necessary change given the growing use of cloud-based services and increasing supplier dependencies.