What framework provides guidance on managing service relationships?

The framework that provides guidance on managing service relationships is ITIL. ITIL, which stands for Information Technology Infrastructure Library, focuses extensively on creating and maintaining effective service management practices. One of the key aspects of ITIL is its emphasis on service relationships, which include interactions between service providers and customers, as well as among other stakeholders involved in service delivery.

ITIL's Service Value System (SVS) and the five components of the service value chain outline how these relationships can be effectively managed to ensure value co-creation. The framework provides detailed practices and models for managing service delivery, including elements like service level agreements (SLAs), customer satisfaction, and communication, making it a comprehensive guide for organizations seeking to enhance their service management capabilities.

Other frameworks like COBIT, Agile, and DevOps have their focuses and strengths. COBIT is primarily centered on governance and management of enterprise IT, Agile emphasizes iterative development and responsiveness to change, while DevOps integrates software development and operations to enhance collaboration and streamline release processes. While they may touch on aspects of service management, they do not provide the same specific, extensive guidance on managing service relationships as ITIL does.