How to Interpret a Technical Specification

How to Interpret a Technical Specification

A technical specification (technical spec or tech spec) is a document that describes how a system will be built — the architecture, components, data models, APIs, and technical decisions. As a non-technical client, reading one can be daunting. This guide helps you understand what to look for.

Why You Should Read the Tech Spec

Even if you don't understand every technical detail, the tech spec is where decisions are made that will affect your system for years. Reviewing it helps you:

  • Confirm the approach aligns with your business requirements
  • Spot assumptions you don't agree with
  • Understand what third-party services will be used
  • Ask questions before decisions are implemented (when changes are cheap)

What to Focus On

  • Technology choices: What languages, frameworks, databases, and platforms are chosen? Do these align with any internal standards or future team plans?
  • Data model: What data will be stored? Does the structure make sense for your business?
  • Third-party integrations: What external services will be used? Have you heard of them? Are you comfortable with their cost and terms?
  • Security approach: How is authentication handled? Is data encrypted?
  • Scalability: Is the architecture designed to grow with your business?

What to Ignore (Initially)

Code snippets, detailed algorithm descriptions, and specific library version numbers can be reviewed by a technical advisor. Focus on the high-level structure and business decisions first.

Asking Questions

There are no stupid questions when reviewing a technical spec. If something is unclear, ask your Project Manager to explain it in plain English. We can produce a non-technical summary alongside the full spec on request.

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