LN-OBS-001-SYSTEMS-MUST-EXPLAIN-THEMSELVES

LN-OBS-001 – Systeme müssen sich selbst erklären#

Learning#

A function can be implemented and still be practically unverifiable when its decisions, relationships and state transitions remain invisible.

Logging is not merely debugging output. Observability connects interaction, Execution Context, decision, state transition and result. Explainability adds the applied ⌘meaningBedeutung beschreibt den fachlichen Sinn eines Elements und seine Relevanz für Menschen und Organisationen., rule and reason. ⌘EvidenceTechnical documentation artifact. makes the relevant result referencable and reviewable.

Distinction#

Observation: something was seen
                Evidence: a purposeful and traceable proof of an Execution result
                Learning: an evaluated and consolidated conclusion derived from Evidence

Confusing these levels creates either excessive telemetry or unsupported architectural conclusions.

Practical rule#

Every meaningful user interaction, policy decision and context transition must be observable at an appropriate level. DEBUG may expose the decision path; TRACE may add detailed processing information.

For important outcomes the system should expose:

• what happened,
• which context applied,
• which rule or ⌘relationshipEine Beziehung beschreibt eine nachvollziehbare Verbindung zwischen Bedeutungen, Artefakten und ihrem Kontext. decided,
• which stable reason identifies the result,
• which Evidence supports the statement.

Sensitive values must never be logged. Human-readable explanations must be localizable while stable technical identities remain unchanged.

Related Architecture#

• ◆Observability by DesignVerlangt beobachtbare und erklärbare Actions, Decisions, State Transitions und Results. – learned-from
• ◆ADR-011Beschließt Observability und Explainability als verpflichtende Querschnittsfähigkeiten. – related-to
• ◆Execution Evidence ModelOrdnet Engineering Execution und Evidence als Spezialisierung der universellen Enterprise-Execution ein. – related-to

Beziehungen#

• ◆LEARNING-NUGGET-CONTRACTVerbindlicher Vertrag für Bedeutung, Auslöser, Struktur, Grenzen und Verknüpfung von Learning Nuggets. — folgt diesem Vertrag