IT operations management (ITOM) software is intended to represent all the tools needed to manage the provisioning, capacity, performance and availability of computing, networking and application resources — as well as the overall quality, efficiency and experience of their delivery. Gartner divides the ITOM market into three minisuite categories — delivery automation, experience management and performance analysis — in addition to a roll-up of mainframe and other nonspecified ITOM tools. To help clients better understand the size of the market and key players in the tool categories represented by Gartner ITOM Magic Quadrants, we have included four additional categories of tools to align with current Magic Quadrants. These are application release orchestration (ARO), application performance monitoring, ITSM, and network performance monitoring and diagnostics (NPMD).