2. 5-2 Capacity Planning
Productivity
A measure of the effective use of resources, usually
expressed as the ratio of output to input
Productivity = Output/Input
It is difficult to measure productivity in service
industries.
3. 5-3 Capacity Planning
Productivity
Productivity measures can be based on a single input (partial
Productivity), on more than one input (multifactor productivity), or on
all inputs (total productivity).
Partial Productivity = Output/Labor (Labor productivity: Units of output
per labor, Units of output per shift, Value added per labor hour, Dollar value
of output per labor hour)
Partial Productivity = Output/Machine,
Output/Capital,
Output/Energy
Multifactor Productivity = Output/ (Labor + Machine),
Output/ (Labor + Capital + Energy)
Multifactor Productivity = Quantity of Production at standard price/
(Labor cost + Materials cost + Overhead)
Total Productivity = Goods or Services Produced/ All inputs used to
produce them
7. 5-7 Capacity Planning
Multifactor Productivity
A wrapping paper company produced 2000 rolls of paper
one day. Standard price is $1/roll. Labor cost was $160,
material cost was $50, and overhead was $320. Determine
the multifactor productivity.
Multifactor productivity = (Quantity produced @ standard price)/
(Labor cost + Material Cost + Overhead)
= 2,000 rolls x $1/roll
$160 + $50 + $320
= 3.77 dollar value per dollar input
8. 5-8 Capacity Planning
Factors that Affect Productivity
Numerous factors affect productivity include
Methods
Capital
Quality
Technology and
Management
Other factors that affect productivity include
Standardizing
Quality differences
Use of the internet
Computer viruses
Scrap rates
New workers
Safety
9. 5-9 Capacity Planning
Factors that Affect Productivity
Other factors that affect productivity include
Shortage of information technology workers and other
technical workers
Layoffs
Labor turnover (negative effect on productivity; replacements
need time to get up to speed)
Design on workspace
Incentive plans
10. 5-10 Capacity Planning
Improving Productivity
Develop productivity measures for all operations is the first
step in managing and controlling an operation.
Look at the system as a whole in deciding which operations
are most critical (avoid the bottleneck operation)
Develop methods for achieving productivity improvements,
such as soliciting ideas from workers, engineers, managers
Establish reasonable goals for improvement
Make it clear that management supports and encourages
productivity improvement
Measure improvements and publish them.