Six sigma (Quality control standard) 10 Standards 6 Standards -- 6 Accounting -- 4 Financial statements -- 4 Total quality management 4 Valuation -- 4 more ... Quality control 3 Quality control -- 3 Building -- 2 Employees -- 2 Production management -- 2 QS-9000 (Standard) 2 Training of 2 Valuation profession and standards -- 2 Basic statistics 1 Case studies 1 Civil service -- 1 Civil service reform -- 1 Computer networks 1 Concrete -- 1 Concrete construction -- 1 Cost accounting 1 Critical path analysis 1 Design and construction -- 1 Education -- 1 Educational evaluation -- 1 Employee motivation -- 1 Estimates 1 Forms of address 1 less ...