4. Operation Management Flashcards
Managing resources effectively to produce goods and services
The operations department in a firm overlooks the production process. They must:
- Use the resources in a cost-effective and efficient manner
- Manage inventory effectively
- Produce the required output to meet customer demands
- Meet the quality standards expected by customers
Difference between production and productivity
- Production is the effective management of resources in producing goods and services.
- Productivity Is the output measured against the inputs used to create it.
How can productivity be measured
Productivity = output/ quantity of input
How can labour productivity be measured
Labour productivity = Output (over a given period of Tim)/ Number of employees.
Ways to increase productivity:
- Improving labour skills by training them so they work more productively and waste lesser resources
- Introducing automation (using machinery and IT equipment to control production) so that production is faster and error-free
- Improve employee motivation so that they will be willing to produce more and efficiently so.
- Improved quality control and assurance systems to ensure that there are no wastage of resources
Inventory Management
- Holding inventories allows a business to maintain production and satisfy customer demands quickly.
- Buffer inventory level: The inventory held to deal with uncertainty in customer demand and deliveries of supplies.
Lean Production
techniques used by a business to cut down in waste and therefore increase efficiency
Wastage that can occur in a firm:
- Overproduction– producing goods before they have been ordered by customers. This results in too much output and so high inventory costs
- Waiting– when goods are not being moved or processed in any way, then waste is occurring
- Transportation-moving goods around unnecessarily is simply wasting time. They also risk damage during movement
- Unnecessary inventory-too much inventory takes up valuable space and incurs cost
- Defects– any fault in equipment can halt production and waste valuable time. Goods can also turn out to be faulty and need to be fixed- taking up more money and time
Avoiding such wastage, a firm can benefit in many ways
- Less storage of raw materials, components and finished goods- less money and time tied up in inventory
- Quicker production of goods and services
- No need to repair faulty goods- leads to good customer satisfaction
- Ultimately, costs will lower, which helps reduce prices, making the business more competitive and earn higher profits as well
How lean production is implemented
- Kaizen: Continuous improvement through the elimination of waste
- Just-in-time: Reducing or virtually eliminating the need to hold inventories of raw materials or unsold inventories of finished product.
- Cell Production: the production line is divided into separate, self-contained units each making a part of the finished good. This works because it improves worker morale when they are put into teams and concentrate on one part alone
Benefits of using Kaizen
- Increased productivity
- Reduced amount of space needed for production
- Improved factory layout may allow some jobs to be combined, so freeing up employees to do other jobs in the factory
Benefits of using JIT
- Reduces cost of holding inventory
- Warehouse space is not needed any more, so more space is available for other uses
- Finished goods are immediately sold off, so cash flows in quickly
Methods of Production
- Job production: Where a single product is made at a time
- Batch production: Where a quantity of one product is made, then a quantity of another item will be produced.
- Flow production: Where large quantities of a product are produced in a continuous process, Sometime referred to as mass production.
Advantages and disadvantages of job production
Advantages:
- Most suitable for one-off products and personal services
- The product meets the exact requirement of the customer
- Workers will have more varied jobs as each order is different, improving morale
- Very flexible method of production
Disadvantages:
- Skilled labour will often be required which is expensive
- Costs are higher for job production firms because they are usually labour-intensive
- Production often takes a long time
Advantages and disadvantages of batch production
Advantages:
- Flexible way of working- production can be easily switched between products
- Gives some variety to workers
- More variety means more consumer choice
- Even if one product’s machinery breaks down, other products can still be made
Disadvantages:
- Can be expensive since finished and semi-finished goods will need moving about
- Machines have to be reset between production batches which delays production
- Lots of raw materials will be needed for different product batches, which can be expensive.
Advantages and disadvantages of flow production
Advantages:
- There is a high output of standardized (identical) products
- Costs are low in the long run and so prices can be kept low
- Can benefit from economies of scale in purchasing
- Goods are produced quickly and cheaply
Disadvantages:
-A very boring system for the workers, leads to low job satisfaction and motivation
-Lots of raw materials and finished goods need to be held in inventory- this is expensive
-Capital cost of setting up the flow line is very high
If one machinery breaks down, entire production will be affected
Factors that affect which production method to use:
The nature of the product: Whether it is a personal, customized-to-order product, in which case job production will be used. If it is a standard product, then flow production will be used
The size of the market: For a large market, flow production will be required. Small local and niche markets may make use of batch and flow production. Goods that are highly demanded but not in very large quantities, batch production is most suitable.
The nature of demand: If there is a fair and steady demand for the product, it would be more suitable to run a production line for the product. For less frequent demand, batch and job will be appropriate.
The size of the business: Small firms with little capital access will not produce using large automated production lines, but will use batch and job production.
Advantages and disadvantages of technology in production
Advantages:
- Greater productivity
- Greater job satisfaction among workers as boring, routine jobs are done by machines
- Better quality products
- New products can be introduced as new production methods are introduced
Disadvantages:
- Unemployment rises as machines and computers replace human labour
- Expensive to set up
- New technology quickly becomes outdated and frequent updating of systems will be needed- this is expensive and time-consuming.