Can you give examples of methods for estimating effort and task complexity?

To estimate the effort and complexity of tasks, the following methods are often used:

• Expert judgment — consulting experienced specialists who provide approximate estimates based on their experience.
• Analogy method — comparing the current task with previously completed similar tasks and using their data for estimation.
• Delphi method — multiple rounds of anonymous expert estimates with discussion and refinement until consensus is reached.
• Planning Poker — the team estimates tasks using cards with numbers (usually Fibonacci sequence), discussing differences in estimates.
• Function Points — a quantitative assessment based on functional requirements.

Example: for an automation testing task, planning poker can be used where the team estimates the complexity of writing tests, considering scenarios, integrations, and edge cases.