The goal of which process is: "To improve the quality of management decision making by ensuring that reliable and secure information and data is available throughout the lifecycle"?

Knowledge Management is formally defined in ITIL with the purpose of improving the quality of management decision making by ensuring that reliable and secure information and data is available throughout the service lifecycle. It uses the DIKW (Data-Information-Knowledge-Wisdom) model and the Service Knowledge Management System (SKMS) to capture, store, and share knowledge across the organization.

Availability Management focuses on ensuring IT services meet agreed availability targets and SLAs, not on managing organizational knowledge for decision-making.

Service Asset and Configuration Management (SACM) is concerned with maintaining accurate records of configuration items and their relationships, not with broadly improving decision-making through knowledge availability.

Change Management controls the lifecycle of all changes to minimize disruption to services, and does not address the availability of information and data for management decisions.