Maintenance Buildings 99 Management 48 Building 20 Maintenance and repair 19 Building management 13 Industrial equipment 13 Plant maintenance 11 Repair and reconstruction 10 Maintainability (Engineering) 8 Facility management 7 Reliability (Engineering) 7 Golf courses 6 Turf management 6 Educational buildings 4 Estimates 4 Machine parts 4 Motors 4 Planning 4 Plant engineering 4 Six sigma (Quality control standard) 4 Systems engineering 4 Building construction 3 Conservation and restoration 3 Data processing 3 Decision making 3 Mathematical optimization 3 Multiple criteria decision making 3 Scheduling 3 Alignment 2