Business logistics 15 Mathematical models 14 Mathematical optimization 8 Production scheduling 8 Markov processes 6 Just-in-time systems 5 Operations research 5 Statistical methods 5 Algorithms 4 Data processing 4 Industrial management 4 Inventory control 4 Production planning 4 Management 3 Process control 3 Retail trade 3 Benchmarking (Management) 2 Consumer satisfaction 2 Decision making 2 Discrete-time systems 2 Economics 2 Engineering economy 2 Engineering systems 2 Evaluation 2 Experimental design 2 Feasibility studies 2 Industrial efficiency 2 Industrial engineering 2 Industrial procurement 2 Industrial productivity 2