Readers need to know whether a page describes a research question, a working prototype, a tested system or a system checked for a stated use. These stages answer different questions and should not collapse into a generic “solution” label.
Research direction
A direction identifies a question and possible methods; implementation or results may not exist yet.
Prototype and controlled test
A prototype demonstrates an implementation. A controlled test records behavior under a defined setup, including failures.
Validated for a stated context
Validation ties evidence to conditions, thresholds and intended use. It does not imply universal performance, certification or readiness for unrelated environments.