In additional to operations research what are the other tools and techniques used by organizations to improve productivity?

The list of tools and techniques that can be used for improving productivity is indeed very big. I am giving below a random list of such tools and techniques that do not come strictly under the classification of Operations Research.

• Management by Objective (MBO)
• Incentive Schemes
• Kaizen
• 5'S'
• Quality Circles
• Suggestion Schemes
• Job Rotation
• Job Enrichment
• Empowerment
• Costing including various related techniques such as cost control and standard costing.
• Budgeting and budgetary control
• Ergonomics