We often spend weeks polishing a Technical Requirements Document until it shines. We script every minor interaction, expand the doc to forty pages, and sincerely believe that the more detail we add, the fewer problems we’ll face.
But in reality, it’s exactly the opposite: a “perfect” spec isn’t what makes a project successful.
Over-detailing is just an illusion of control
By the time the document is “perfect,” the market has moved on, a competitor has launched something new, and the client has changed their mind about half the features.
Theory on paper rarely survives contact with reality.
- What looks logical in a document often feels clunky in an actual interface.
- When a spec becomes “Holy Scripture,” every smart pivot is met with: “But the doc says otherwise.” The result? You get a product that’s outdated before it even launches.
What actually works: The spec as a compass
A great document shouldn’t be a cage; it should be a guide. Such a document needs:
- A clear goal: People should understand what’s being built on the first read. Keep it simple: goal, core features, expected outcome.
- User stories over tiny details: Describe what the user needs to achieve. Instead of “Blue button, 48px,” go with “User adds an item to the cart from the catalog.”
- Clean structure: Tables, checklists, and clear sections. People need to find the information fast.
- Room for discussion: Having an “Open Questions” section is perfectly fine. A spec is the start of a dialogue, not a rigid law.
A “perfect” spec is often a handbrake for your project. A good spec defines the “why” and stays ready for any change.
Less fluff, more common sense, and room to maneuver. That beats the perfectionism every single time.
