Fewer are better. Concentrate on measuring the vital few key variables rather than the trivial many.
Measures should be linked to the factors needed for success—key business drivers.
Measures should be a mix of past, present, and future to ensure the organization is concerned with all three perspectives.
Measures should be based around the needs of customers, shareholders, and other key stakeholders.
Measures should start at the top and flow down to all levels of employees in the organization.
Multiple indices can be combined into a single index to give a better overall assessment of performance.
Measures should be changed or at least adjusted as the environment and your strategy changes.
Measures need to have targets or objectives established that are based on research rather than arbitrary numbers.Brown, M. G. (1996). Keeping score. New York: Productivity Press.