How do you decide what exactly needs to be automated?

The decision on what exactly needs to be automated is based on several criteria:

• Frequency of task execution — the more often a task is repeated, the more beneficial it is to automate.
• Routine and standardization — tasks with clear rules and predictable results are best suited.
• Time and resources spent on manual execution — if manual work takes a lot of time and resources, automation is justified.
• Impact on quality and stability — automation helps reduce the number of errors.
• Business priorities — automate processes that bring the maximum benefit or reduce risks.

For example, in testing, regression tests that are repeated often and require accuracy are automated.