ntities. [Models (MCP)] 
n., Criteria, rules, procedures, or devices approved by official authority or general consent, that serve as examples to be followed or as measures for evaluation or comparative judgment. [Models (MCP)] 
n., A set of guidelines, usually drafted by experts in a particular field of technology, that are issued for general use by national
and international standards organisations. [Models (MCP)] n., The format used to distribute a television signal. Examples include NTSC, PAL, SECAM. [M