The description provided is the textbook definition of the Incident Management process. The primary objective of Incident Management is to restore normal service operation as quickly as possible after an unplanned interruption or degradation of service quality. Its focus is on immediate, tactical resolution to minimize the adverse impact on business operations and ensure that agreed-upon service levels are maintained. This process is reactive and prioritizes speed of restoration over in-depth root cause analysis, which is handled by Problem Management.

A. Change management is a proactive process for controlling the lifecycle of all changes to minimize disruption, not for restoring service after a failure.

B. Capacity management focuses on ensuring IT resources are sufficient to meet current and future business demands in a cost-effective and timely manner.

D. Equipment life cycle management is the process of managing IT hardware from planning and procurement through to operational use, maintenance, and disposal.

1. AXELOS. (2019). ITIL® Foundation: ITIL 4 Edition. TSO (The Stationery Office). Section 5.2.5, "Incident management practice," defines the purpose as: "to minimize the negative impact of incidents by restoring normal service operation as quickly as possible."

2. International Organization for Standardization. (2018). ISO/IEC 20000-1:2018 Information technology — Service management — Part 1: Service management system requirements. Section 8.6.2, "Incident management," specifies the requirement to restore normal service operation within agreed timescales.