Government purchasing 108 Data processing 81 Standards 79 Purchasing 77 Electronic Data Interchange 59 Electronic commerce 57 Electronic data interchange 38 Data dictionaries 20 Vendors and purchasers 17 Purchasing power 15 Purchasing power parity 12 Law and legislation 11 Gross national product 10 Government purchasing of real property 9 Industrial procurement 9 Government policy 8 Management 7 Handbooks, manuals, etc 6 Public contracts 6 Real property 6 Cases 5 Mathematical models 5 Real estate business 5 Small business 5 Business enterprises 4 Conveyancing 4 Finance 4 Hospital purchasing 4 Industrial policy 4 Materials management 4