Provenance before interpretation
How METRAVUE separates current values, activity, data quality, measurement reliability and historical context.
Source registry
Every public source declares its dataset, asset class, scope, venue or pool, data type, rights state, expected frequency, freshness threshold, limitations and fallback policy.
Status contract
INITIALIZING, CONNECTING, ONLINE, DELAYED, STALE, MARKET CLOSED, RATE LIMITED, NOT CONFIGURED, OFFLINE and ERROR have distinct meanings. Initial checks time out after ten seconds.
Activity is not quality
Observed Activity Index, FX Relative Tick Activity, Relative Volume, Cross-Asset Relative Activity, Data Completeness and Measurement Reliability remain separate fields.
No substitute data
Reference rates are not spot prices, venue and pool observations are not consolidated prices, and labelled history never replaces a missing current observation.