Discovery isn't finished until you can write this sentence.

This system succeeds when it changes X by Y, measured by Z.

For example:

• Reduces fire-seal pricing time by 90%, measured by average minutes per seal before and after rollout.
• Reduces subcontractors working on-site without a valid certification on file by 75%, measured by cross-referencing daily sign-in logs against the certification database.

Now write one for your project.