Operations Flashcards
(121 cards)
Describe operations
Operations refers to the process of take raw materials (inputs) then transforming them (process) into finished goods (output)
Depending on the product or service there will be a different mixture of resources - labour, raw materials and machinery used in operations
What is the operating system?
The method of organising the resources to achieve the desired outcome is known as the OPERATING SYSTEM
Describe input
Buying the raw materials and hiring labour
Describe process
Converting raw materials into something useful through the use of machinery and other processes
Describe output
The finished product.
It is packaged and sent to customers (channel of distribution)
What does inventory refer to?
Raw Matrerials
Work in Progress (unfinished work)
Finished Goods
What is inventory management?
Inventory management is concerned with the sourcing and storage of raw materials (for secondary sector businesses) or supplies of finished goods for resale (for tertiary sector businesses).
What are the impacts to overstocking?
Supplies could go out of date if they are kept for too long.
Supplies could go out of fashion before they are used.
Too many supplies results in a risk of theft e.g. by staff or customers.
The business will have to pay for stockholding costs, such as insurance and security.
The opportunity cost of money being tied up in stock which could be better used elsewhere in the business.
What are the impacts of understocking?
The business may run out of stock and be unable to continue production or carry on selling.
The business will not benefit from bulk buying discounts due to making smaller orders.
There may be no stock to sell, resulting in a poor reputation and loss of customers.
There will be an increase in delivery costs since many smaller deliveries will need to be made.
There will be an increase in administration costs e.g. paying staff to browse for supplies, complete order forms, settle invoices etc.
How is an appropriate stock level set?
Managers need to decide:
- How much stock to keep on the premises
- How low the stock should get before re-ordering
- How much to re-order
Describe maximum (economic) stock level
This is the highest number of inventory (stock) that should be held at any time. This avoids the consequences of overstocking.
Depends on:
- Storage space available.
- Type of stock – perishable or not.
- Finance available – how much you can afford to buy at one time.
Describe minimum stock level
The least amount of stock which should be held.
Setting this level avoids the consequences of understocking.
Stock should not fall below this level because there is a risk that production might stop.
Also acts as a buffer to cope with unexpected demand.
Buffer inventory is inventory which is held as a reserve to allow for delays in delivery of ordered inventory
Describe the re-order level
The quantity at which more stock is ordered.
Computerised inventory systems link to EPOS and automatically reorder goods.
This avoids running out of stock.
Must take Lead Time into consideration.
Describe lead time
The time taken between an order being placed and stock arriving.
As short a lead time as possible allows the business to react to rush orders.
Describe the re-order quantity
The quantity of stock that is ordered to get back up to maximum level.
This ensures that the quantity ordered is not too great or too small.
The reorder level depends on
- Lead time
- The amount of stock already held
- If bulk buying discounts are available
- The maximum and minimum stock levels
Describe buffer inventory
This is usually set above the minimum inventory level and allows some stock to be available in case there are problems with deliveries.
Buffer inventory means that production does not have to stop.
What is the purpose of inventory control systems?
To anticipate running out of inventory before it happens
To ensure the production line will always be able to run if there is inventory
To ensure that customers orders are not delayed through lack of inventory
To reduce costs – security, insurance and more storage
To minimise money tied up in inventory – better cashflow
To minimise the chance of inventory deteriorating
What are the advantages of EPOS and inventory management?
Bar codes allows all inventory to be tracked electronically from the moment it arrives in the business until it is delivered to the customer.
The same EPOS equipment that is used at the till when a customer buys something is used in the warehouse which updates inventory levels with each sale.
Accurate and constant monitoring of stock levels allows for automatic reordering.
Highlights changes in demand from customers.
Highlights regional variations in inventory for head office.
Allows for decisions on slow-moving inventory or best sellers to be made quickly.
Is a deterrent to theft by staff as they know inventory levels are monitored closely.
What are the disadvantages of EPOS and inventory management?
Computerised systems will cost a lot of money to install and maintain.
Money and time need to be invested to train staff to operate the system efficiently.
Describe just in time
Alternative approach to inventory management.
The process of ordering supplies only when they are either required for production or when an order is placed by a customer, so it is done ‘Just in Time’
Used for ‘lean’ production techniques that increase efficiency and reduce wastage.
What are the advantages of just in time?
Allows production to be lean i.e. no wastage as all stock is used for production.
No money is tied up in stock, improving cash flow and working capital.
No warehouse is required, saving costs.
The business is more responsive to changing external factors.
What are the disadvantages of just in time?
If deliveries are late then the business will face the negative consequences of understocking.
Requires excellent relationships with suppliers to work effectively, which can take time to develop.
Relies on a good infrastructure between the business and suppliers e.g. roads
No room for error in production.
Describe storage and warehousing
Includes centralised and decentralised storage
Stock warehouses and storage areas need to have the right conditions so that stock is not damaged.
When a business sets up a warehouse (rents, buys or builds) they must ensure the following conditions:
- Well lit, dry and well ventilated
- A system should be used for booking stock in and out of the warehouse
- Stock should be on a first in, first out basis
- Accurate records should be kept of stock levels
- Warehouse space should be given to stock items
- All shelves and storage areas should be labelled for easy access and for locating stock
- Appropriate conditions – refrigerated etc
Describe centralised storage
Centralised storage involves storing inventory in one central location in a large, purpose built warehouse. E.g. Amazon in Dunfermline