2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/151313We argue for a performance-based design of natural language grammars and their associated parsers in order to meet the constraints posed by real-world natural language understanding. This approach incorporates declarative and procedural knowledge about language and language use within an object-oriented specification framework. We discuss several message passing protocols for real-world text parsing and provide reasons for sacrificing completeness of the parse in favor of efficiency.6 pages, uuencoded gzipped PS fileComputation and LanguageTrading off Completeness for Efficiency --- The \textsc{ParseTalk} Performance Grammar Approach to Real-World Text Parsingtext