de facto standard
- conventionAgreed standard of behavior
- normAccepted behavioral standard
- unwritten ruleImplicit behavioral expectation
- dominantHaving superior influence
- ubiquitousPresent in all places
unofficial · adopted · QWERTY · Microsoft · USB · PDF · prevailing · established · customary · default · mainstream · accepted · widespread · common practice · benchmark · gold standard · protocol · legacy
uniformity
de facto standardnon-standard
Not following established rules
fragmentation · balkanization · incompatibility · Balkanization · format wars