In Guru99 these steps are laid out as follows:
You look at the company as a whole, where is it at and what is hampering progress
Requirement planning and Management
This is self explanatory, you define your tasks and resources
During this step you engage your stakeholders and gather their interpretation of the requirements.
Requirement analysis and Documentation
Now you compile all the information gathered in the 2 previous steps into one cohesive document
This is then presented to the stakeholders for their input and buy-in
Solution Evolution and Validation
The most commonly used techniques include the following:
The 5 Whys
The 6 thinking hats
Learn more about the 6 steps and all these tools in this article.