Semantic Stability Engineering
Semantic Stability Engineering (SSE) is the research field in which how a system's internal meaning changes over time becomes something you can name and study directly — not just infer from its outputs.
SSE studies how the internal meaning a system assigns to its own state can shift over time, treating that shift as a variable worth studying in its own right — not only as a side effect of output behavior or performance metrics.
A drift in meaning is not the same as a drift in the underlying data.
Stable outputs do not prove stable internal meaning.
A shift in interpretation can matter even where performance and compliance checks remain unchanged.
SSE provides the conceptual layer above SnapOS's concrete governance work — it explains why decision identity and meaning stability need to be treated as first-class concerns, not why any specific output should be trusted or distrusted. The full technical treatment is a citable research publication, not an operating manual.