Information Technology Infrastructure Library a set of detailed practices for IT service management (ITSM) that focuses on aligning IT services with the needs of business.ITIL describes processes, procedures, tasks, and checklists which are not organization-specific, but can be applied by an organization for establishing integration with the organization's strategy, delivering value, and maintaining a minimum level of competency. It allows the organization to establish a baseline from which it can plan, implement, and measure. It is used to demonstrate compliance and to measure improvement.

SAP PI (Process Integration based on Exchange Infrastructure). It takes the responsibility of integrating different SAP and non-SAP systems in the Heterogeneous Landscape (network of different computers). PI acts as SOA Middleware and forms the backbone of SOA in SAP environment. Process Integration can be used as a Middleware Engine to communicate in a distributed environment. The heart of PI is Integration Engine that is used for integrating different technologies using Standard Messaging techniques.