1. Define the customer requirements for the solution.
2. Design a great solution to meet those requirements.
3. Implement the designed solution.
4. Test the solution implementation.
5. Validate the solution with the customer.
6. Deliver the solution in the working environment.
7. Maintain the solution afterward.

Fundamental constraints

1. The solution needs to meet user requirements.
2. The solution needs to be delivered on time.
3. The solution needs to adhere to the project budget.
4. The solution needs to deliver good quality.
5. The solution needs to guarantee safe and effective future evolution.