Standards 121 Data processing 94 Government purchasing 76 Electronic Data Interchange 62 Electronic commerce 56 Electronic data interchange 37 Data dictionaries 21 Calibration 17 Congresses 16 Measurement 16 Research 16 Testing 12 Computer security 9 Fire prevention 9 Integrated services digital networks 9 Computer networks 7 Data transmission systems 7 Materials 7 Administrative agencies 6 Computer programs 6 Electronic data processing 6 Management 6 Bibliography 5 Computer network protocols 5 Computer simulation 5 Computer software 5 Database management 5 Environmental aspects 5 Integrated circuits 5 OSI (Computer network standard) 5