Feature
A logical grouping of scenarios that represents a meaningful unit of the product — like “Document Upload” or “User Authentication.” Features form the structure of a living product specification.
A feature in a product specification is a named grouping of related scenarios. It represents a unit of the product that makes sense to the people who build, support, and manage it — not a technical component like a module or a class, but a recognisable area of behaviour that a PM or customer success manager would point to when answering a question.
Features can be nested up to two levels deep: a top-level feature like “Notifications” might contain sub-features like “Email Notifications” and “In-App Notifications.” This mirrors how teams naturally think about their product — broad areas that break down into more specific capabilities.
When Specsight analyses a codebase for the first time, it infers the feature structure from the code. Teams can then adjust the groupings manually — renaming, merging, or reorganising features to match how they think about their product. The feature tree becomes the table of contents of the living spec.
Related Terms
A single plain-language description of how a product behaves in a specific situation. The atomic unit of a living product specification.
A written description of how a product behaves — feature by feature, scenario by scenario. Distinct from a technical spec, which describes implementation.
Documentation that is structurally incapable of falling out of sync with the product, because it is derived from the code rather than written separately.
See it in practice
The Specsight demo shows real scenarios, features, and a complete living product spec — generated from an actual codebase.