Operations planning
preparing input resources to supply products to meet expected demand
Importance of operations planning
If sales forecasts are reasonably accurate, then operations managers able to:
operational flexibility
the ability of a business to vary both the level of production and the range of products following changes in customer demand
Operational flexibility can be achieved:
Process innovation
the use of a new or much improved production method or service delivery method
Job production
producing a one-off item specially designed for the
- labour-intensive
- enables specialised products to be produced
- tends to be motivating for workers
Disadvantages
- expensive
- time-consuming
- labour force needs to be highly skilled
Batch production
producing a limited number of identical products - each item in the batch passes through one stage of production before passing on to the next stage
Advantages:
- allows firm to use division of labour
- enables some gain from economies of scale if the batch is large enough
- allows each individual batch to be specifically matched to the demand.
-> design can be easily altered
Disadvantages:
- high levels of work-in-progress stocks
- demotivate workers
- adjust machinery after each batch has passed through
Flow production
producing items in a continually moving process
Features:
- specialised, often expensive, capital equipment, but can be very efficient
- high steady demand for standardised products
Advantages:
- low unit costs due to constant working of machines
- high labour productivity
- economies of scale
Disadvantages:
- inflexible - often very difficult and time consuming to switch from one type of product to another
- expensive to set up
Mass customisation
the use of flexible computer-aided production systems to produce items to meet individual customers’requirements at mass-production cost levels.
Requirements:
- many common components
- flexible and multi-skilled workers
- flexible equipment - often computer-controlled to allow for variations
Advantages:
- combines low unit costs with flexibility to meet customers’ individual requirements
Disadvantages:
- expensive product redesign may be needed to allow key components to be switched to allow variety
- expensive flexible capital equipment needed.
Factor to choose production method