unit 5 - chapter 1 Flashcards
what are the main decisions operations managers usually make?
these relate to
- processes by which goods and services are produced . quality of goods or services
- quantity of goods or services (the capacity of operations) . stock of materials (inventory) needed to produce goods or services
- management of human resources involved with operations activities
what is the transformation model?
From a system perspective, business operations can be seen as a productive system whose processes transform specific resources (inputs) into finished goods or services (outputs) required by customers. This basic transformation model applies equally in manufacturing and service organisations, and in both the private and the not-for-profit sectors.
what are the transformed resources?
Materials –
- some operations transform the physical properties of materials (clay for brick-making or food in a restaurant)
- Other operations transform the location of materials (parcels and mail in the postal services)
- Others transform the possession of the materials (retail operations)
- Others, such as warehouses, just store materials
Information –
- some operations transform the form of the information (e.g., consultants, accountants),
- others sell information (e.g., market research companies),
- others transport information (e.g., telecommunications companies)
- others store information (e.g., libraries). .
Customers
- some operations transform customers physically (e.g., hairdressing, hospitals, dentists)
- some transform the psychological state of customers (e.g., entertainment companies)
- some transport customers (e.g., airline companies)
- others accommodate customers (e.g., hotels).
what are transforming resources?
resources necessary to act upon the transformed resources to carry out the transformation, but they do not themselves form part of the output. These can be:
- Facilities or fixed assets – the buildings, machinery, plant and process technologies of the operation
- Staff – the people involved in the operation, at any level. They are usually referred to as human resources and they are the employees of the organisation carrying out the operations. These are the people who plan, control, operate or maintain the operation.
what are transformation processes?
- changes in the physical characteristics of materials or customers (e.g., food processing, a hair cut)
- changes in the location of materials, information or customers (e.g., cargo freight, telecommunications, public transport)
- changes in the ownership of materials or information (e.g., retail, market data)
- storage or accommodation of materials, information or customers (e.g., warehousing, information backup storage, a bed and breakfast hotel)
- changes in the purpose or form of information (e.g., information processing)
what are outputs?
goods and services (many operations produce both)
- Goods are tangible, physical products of the process; they are typically produced prior to the customer receiving them.
- Services are intangible - we cannot touch or store a service, they are consumed at the time of production.
what issues are there around undesirable outputs?
- waste elements generated in the production process. . minimising the environmental impact caused by waste outputs
- preserving the health and safety of employees and local community
- responsible for ethical behaviour in relation to the social impact of transformation processes, both locally and globally. (eg manufacturers of sports footwear have come under fire for employing child labour and paying low wages to workers employed in their overseas factories.)
what is feedback information used for?
used to control the operations system by adjusting the inputs and transformation processes that are used to achieve desired outputs.
For example, a chef relies on a flow of information from the customer, through the waiter, about the quality of the food. Adverse feedback might lead the chef to change the inputs (e.g., by buying better quality potatoes) or the transformation process (such as changing the recipe or the cooking method).
what is the four stage Chase and Hayes model?
- stage 1: Internally neutral Objective is to minimise the negative impact of ‘operations’
- Stage 2 Externally neutral Objective is for ‘operations’ to help the business maintain parity with its competitors ternally supportive
- stage 3 - internally supportive - Objective is for ‘operations’ to provide credible support for the business strategy
- Stage 4 Externally supportive Objective is for ‘operations’ to provide a source of competitive advantage
what are the five key strategic performance objectives of operations?
- Quality Being RIGHT
- Speed Being FAST
- Dependability Being ON TIME
- Flexibility Being ABLE TO CHANGE
- Cost Being COST EFFECTIVE
what specific issues are there with regard to quality?
- doing things right
- consistently producing goods and services that meet customers’ expectations
- can be achieved by the provision of error-free products that fulfil customer requirements
- requires a skilled workforce, adequate job specifications, proper technologies and effective communication. For example, the quality of a bus company can mean that staff are courteous and helpful, the drivers drive safely, the buses are clean and quiet and the timetable is easy to read.
what specific issues are there with regard to speed?
- doing things quickly
- delivering goods and services to customers as fast as possible
- involves making quick decisions and rapidly moving materials and information inside the operations
- broadcasting companies want to be the first to broadcast breaking news.
- Speed is also essential for emergency services, matter of life or death
what specific issues are there with regard to dependability?
- doing things on time and keeping the delivery promises made to customers
- developing trustworthiness
- can be achieved through the use of reliable equipment, effective communication, efficient scheduling systems, a motivated workforce, etc.
- Supermarket: reasonable queuing times, constant availability of parking, keeping the proportion of goods out of stock to a minimum, etc
what specific issues are there with regard to flexibility?
- being able to change the operation to fulfil new customer requirements
- different customers have different requirements and these can change over time
- organisations need to be able to introduce new or modified goods and services (goods/ service flexibility), as well as to produce a wide range or mix of goods and services (mix flexibility).
- volume flexibility – ability to change volume of output over time
- delivery flexibility – the ability to change delivery time. can be achieved by the use of more versatile equipment, suppliers with good flexibility performance, a multi-skilled workforce, etc.
- retailer with the ability to introduce new goods or promotions and the ability to provide a wide range of goods
what specific issues are there with regard to cost?
- doing things economically.
- Low cost is a universally attractive objective (Slack et al., 2007).
- Usually, operations spend money on staff, materials, facilities, equipment and technology.
- Cost reduction can be achieved by developing good relationships with suppliers, by good negotiation of supplying contracts, by getting the right mix of resources and facilities as inputs, etc. (ALDI)
ALDI case study (cost)
- international supermarket specialising in ‘private-label’, mainly food products.
- operations are deliberately simple, using basic facilities to keep down overhead costs.
- Most stores stock only a limited range of goods.
- ‘private-label’ approach means that the products have been produced according to Aldi’s quality specifications and are sold only in Aldi stores.
- no need for high costs of brand marketing and advertising, and with Aldi’s formidable purchasing power, prices can be 30 per cent below their branded equivalents.
- open-carton displays, which eliminate the need for special shelving,
- no provision of grocery bags
- ‘trolley rental’ system, which requires customers to return the trolley to the store to get their coin deposit back.
How do volume and variety influence the design of a process?
How much will the process need to produce?
-
volume of the output can range from
- very few – even a single output (e.g., a new bridge or ship from a construction project)
- to very many (motor cars or take-away hamburgers)
-
variety of the output will also range from
- very low (each unit is exactly like every other one - fast food etc)
- to very high (high-fashion clothing, consultations with medical specialists or the food in five-star restaurants.
what are the five generic process types?
- projects,
- jobbing,
- batch production,
- mass production
- continuous production
what is involved in the following process type: projects
- typically produce one finished output at a time to customer requirements.
- generally take a long time to complete and involve large capital and labour investments relative to the size of the operation.
- construction and civil engineering, aeroplanes and ships
- complex and uncertain,
- high risk of failure or cost and time overruns (especially projects involcing untried technologies or novel situations - IT, constructions)
what is involved in the following process type: jobbing
- outputs vary, volume is higher than in project operations. process many different jobs to specific customer requirements
- work is intermittent rather than continuous.
- Each customer job is processed individually and may require many different work activities before work is complete
- custom print shop; an example of a job would be designing and printing a letterhead for a personal or business customer.
what is involved in the following process type: batch production
- When the volume of output is higher, and more outputs are identical
- many different outputs are processed at the same time, in groups or batches
- most common process type for repetitive operations
- commercial bakery
- operate at higher volumes than jobbing operations
- outputs are often not produced for an individual customer
- applied in service as well as manufacturing contexts
- class of students could be considered as being a batch that is being acted on by the teacher
- administrator sending out a standard letter to a large number of people (‘mail merge’)
what is involved in the following process type: mass production
- large volumes of standardised products are made for a mass market
- appropriate for markets that demand high volumes of a similar output
- goods include cars, personal computers and many household products
- use ways of linking the different stages of the process, such as assembly lines
- example - customer billing operations
what is involved in the following process type: continuous production
- highly standardised products
- system is highly automated
- runs with only intermittent stops (often 24 hours a day, 365 days a year)
- outputs are difficult to separate physically
- processing industries such as petrochemicals and foodstuffs.
how do you choose a process type?
types lie along a diagonal that ranges from low-volume/high-customisation to high-volume/high-standardisation. process type for any good or service must be consistent with the volume and variety of the output.
best process strategy is found on the diagonal; strategies that are not on the diagonal generally have either over-invested in the process or provided too much/not enough flexibility
As volume increases, it becomes more difficult to customise outputs to individual customer requirements (taxi (low volume of customers but high variety of delivery), vs. bus (high volume of customers and low variety of delivery).