In ITIL, there are six activities in the service value chain which represent the steps an organization takes in the creation of value:

Plan

Engage

Design and Transition

Obtain/Build

Deliver and Support

Improve

https://www.bmc.com/blogs/itil-service-value-chain/

Problem Control. Problem control activities include problem analysis and documenting workarounds and known errors.

Just like incidents, problems will be prioritized based on the risk they pose in terms of probability and impact to services. Focus should be given to problems that have highest risk to services and service management.

https://www.bmc.com/blogs/itil-problem-management/#:~:text=2.,probability%20and%20impact%20to%20services.

Organizations maximize co-creation of value with their customers by facilitating the outcomes they want to achieve. The four dimensions of service management have shown that a holistic approach is the best way for an organization to:

Achieve its goals in delivering quality and cost effective services

Meet the needs of its customers

Satisfy the requirements of its stakeholders

https://www.bmc.com/blogs/itil-service-value-system/

A change is defined as the addition, modification, or removal of anything that could have a direct or indirect effect on services

https://www.bmc.com/blogs/itil-change-enablement/#:~:text=A%20change%20is%20defined%20as,or%20indirect%20effect%20on%20services.

It is important to understand the difference in these terms not just for clarity, but because outputs are much easier to measure than outcomes.

Outputs are nearly always quantitative, with data available to show whether these have been delivered. Outputs are easy to report on and to validate. There is no grey area.

Outcomes are more challenging to verify because they are both qualitative and quantitative. Whether your outcomes have been achieved will rely, to a great extent, on the perception of the people who receive the service. Perceptions are not easy to measure or report on, but it is essential you find a way to do so.

https://www.bmc.com/blogs/outcomes-vs-outputs/

You need to use all of your resources as effectively and efficiently as you can. This means that you should automate wherever you can, and use people only for tasks that can’t be automated. It also means that you need to think carefully about what you can automate and about the circumstances where only a person will do; and about simplifying those processes you do decide to automate to eliminate wasteful or inefficient steps.

You should always optimize the work BEFORE you automate it, as automating something that is inefficient or ineffective may just result in you doing the wrong thing faster!

https://www.sysaid.com/blog/itil/the-7-guiding-principles-of-itil-4-practical-advice-to-help-you-make-decisions