Make requirements reviewable
A documented matrix gives product, engineering, security, and operations one object to review. People can challenge a role, resource, or action before it is buried in implementation details.
Guide
Document Your Permission Matrix Before You Write the Code
Coding permissions before the team agrees on the access model turns requirements into scattered implementation details. Document the intended roles, resources, actions, and conditions first, then build from a shared decision.
Why document before coding?
Separate intent from implementation
The access model describes what should be allowed. Code describes how the application enforces it. Keeping those layers separate makes it easier to change implementation without losing the original decision.
Expose missing context
A blank condition or unclear scope is useful feedback. It shows where the team still needs to decide whether access is tenant-scoped, relationship-based, field-specific, or unconditional.
From access model to implementation
1
Document roles and resources
List the jobs people perform and the resources they need to reach. Avoid starting with framework-specific role names or copying the current application's permission table.
2
Define actions and conditions
Record the actions that matter, then add scope, ownership, group, approval, or field conditions. This is where “admin” often becomes a smaller and more useful model.
3
Review the model
Walk through normal workflows and exceptions with the people who own them. Confirm that each grant has a reason and that similar decisions are represented consistently.
4
Translate into code
Only after sign-off should engineers map the approved model to application roles, checks, policy rules, and tests. Keep the documented model as the reference for future changes.
What this is — and what it is not
This is not a request to maintain a second copy of every implementation detail forever. The goal is to keep the product decision visible: who needs access, to what, for which action, and under what condition. Once the model is agreed, code and tests can enforce it without becoming the only place where the decision exists.