encoding system

encoding variability 编码变异性

A process or system of assigning codes, abbreviations or labels to represent a letter, item or message. The system can be arbitrarily or systematically applied. For example, the code, 456 may represent "Turn on the TV," or a picture of a drinking glass may signify, "I want a drink of water." Commonly used coding systems include morse code, abbreviation/expansion and semantic compaction.