How do you break down a large and complex task into smaller parts for solving?

The approach I usually use to break down a large and complex task into smaller parts is:

1. Task analysis: understanding what exactly needs to be done, what input data is available, and what the expected result is.
2. Decomposition: dividing the task into logical sub-tasks or stages that can be implemented separately.
3. Determining dependencies: figuring out which sub-tasks depend on each other and which can be performed in parallel.
4. Planning and prioritization: arranging sub-tasks in the order of execution and assessing their complexity.
5. Implementation and testing: sequentially implementing each sub-task, verifying correctness.

For example, if you need to implement data loading and processing functionality:

• Loading data from the source
• Validating and cleaning data
• Transforming data into the required format
• Saving results

This approach helps simplify development and facilitates debugging.