Functions

Stepwise Refinement

One of the most powerful strategies for problem solving is the process of stepwise refinement.
To solve a difficult task, break it down into simpler tasks; then keep breaking down the simpler tasks into even simpler ones, until you are left with tasks that you know how to solve.
How do you get coffee?
- Ask someone else to do it.
- Make coffee.
OK, how do you make coffee?
- Make instant coffee.
- Brew Coffee.
How do you make instant coffee?
- Start by boiling water.
- Etc.