Glossary

Accountable care organisation (ACO)

An organisation that brings together a number of providers to take responsibility for the cost and quality of care for a defined population within an agreed budget. ACOs take many different forms, ranging from fully integrated systems to looser alliances and networks of hospitals, medical groups and other providers. ACOs emerged in the United States and they build on a much longer history of integrated care systems such as Kaiser Permanente. In England, ACOs have attracted interest as one way of overcoming fragmented responsibility for the commissioning and provision of care in the NHS. 

Alliance contract model

A model that allows a set of providers to enter into a single arrangement with a commissioner to deliver services. Commissioners and providers are legally bound together to deliver the specific contracted service, and to share risk and responsibility for meeting the agreed outcomes. As such, they should be incentivised to innovate and identify efficiencies across the system, rather than solely within their organisation. The alliance is reliant on high levels of trust across its relationships. Members collectively govern the alliance through a leadership board with agreed terms of reference.

Batching

A batch system is where one action is done to multiple items or people at the same time before the next step in the process begins. In health care typical examples include the ‘batching’ of multiple blood samples for processing at the same time by a lab, or the ‘batching’ of patients to be seen during a consultant’s ward round.

Big Room approach

An approach, also known by the Japanese term ‘Oobeya’, which involves a regular standardised meeting of an improvement team. It takes place within a dedicated project room in which all the project information is displayed. Participants use the visual information to monitor data and progress, discuss issues, share experiences and agree next steps. The Big Room process offers an environment for real-time decision making that engages all relevant stakeholders. It can be used to help identify improvements to individual health care processes, with reference to their wider system impact, and then implement them successfully. It was developed by Toyota and is used by other manufacturing companies (including NASA, Boeing and Unipart) for managing new product development in highly complex, worldwide supply chains.

Bottleneck

Any resource or step in a process whose capacity is less than the demand placed on it.

Capacity and demand management

A means of addressing variations between demand and capacity in a system. Often delays and inefficiencies in the health care system are not the result of excess demand or the shortage of resources. Instead, the key issue is a mismatch between when capacity is available (ie staff, machines and equipment) and when demand presents to a service (ie the number of patients or service users requiring access to the service). If variations in demand are taken into account in capacity plans, this ensures that there is surplus capacity or ‘slack’ in the system to adjust for hourly, daily and seasonal changes in demand.

Capitated payment

A payment given to a provider or group of providers to cover the majority (or all) of the care provided to a target population, such as patients with multiple long term conditions, across different care settings. The regular payments are calculated as a lump sum per patient. If a provider meets the specified needs of the target population for less than the capitated payment, they will generate a financial gain.

Failure demand

The demand caused by failure to do something or do something right for patients and service users. The term was first coined by John Seddon, an occupational psychologist and organisational change expert, to describe the rapid growth in the volume of phone calls to banking call centres in the 1980s. He argued that this growth in demand was not an indicator of banks’ success but the result of their failure to deal effectively with customers’ queries when they first contracted them. A range of approaches to identify and address failure demand in public services have been developed by policymakers and local system leaders across the UK.

Flow

The progressive movement of people, equipment and information through a sequence of process steps. In health care, ‘flow’ generally denotes the flow of patients between staff, departments and organisations along a pathway of care.

Hand-off mapping

A method for understanding the flow of patients, service users, staff, information and resources from point A to B to C to D, etc. The objective of hand-off mapping is to eliminate hand-offs and process steps that aren’t needed so that information and processes flow through the fewest number of value-adding steps. 

Hoshin Kanri (X-matrix) process

A one-page strategic plan for an organisation that includes all goals, strategies, strategic projects (initiatives) and owners. Its purpose is to encourage ownership of work at all levels of an organisation.

Human factors

The environmental, organisational and job factors, and human and individual characteristics which influence behaviour at work in a way that can affect health and safety. A simple way to view human factors is to think about three aspects – the job, the individual and the organisation – and how they impact people’s health and safety-related behaviour.

Kaizen

The Japanese word for continuous improvement. In lean systems, improvement activity at the level of the team or work unit is known as ‘point kaizen’. This is usually targeted specifically at one bottleneck and performed by a small team over a few days.

Activities of this type are seen as key building blocks for ‘flow kaizen’ – the redesign of end-to-end product pathways.

Lean

A quality management system that draws on the way some Japanese car manufacturers, including Toyota, manage their production processes. The approach focuses on five principles: customer value; managing the value stream; regulating flow of production (to avoid quiet patches and bottlenecks); reducing waste; and using ‘pull’ mechanisms to support flow. Using ‘pull’ means responding to actual demand, rather than allowing the organisational needs to determine production levels.

Outside-in

An approach that is underpinned by the belief that customer or service user experiences and values are central to the success of an organisation. As a result the organisation prioritises service user engagement and focuses on improving the quality of their experiences. An ‘inside-out’ approach on the other hand is one informed by the belief that organisational success is driven by the organisation’s internal assets and capabilities.

Place-based systems of care

An approach that presupposes a shift from a ‘fortress mentality’, whereby health and social organisations look to secure their own individual interests, towards place-based ‘systems of care’ in which they collaborate with other local providers to address the challenges and improve the health of the populations they serve.

Prime contractor model

A model that allows the commissioner to contract with a single organisation (or consortium) which then sub-contracts individual providers to deliver care. The commissioner retains overall accountability for the commissioned services, while the prime contractor holds each of the sub-contractors to account individually. The prime contractor takes responsibility for designing a delivery model and patient pathway that will most effectively meet the terms of the contract. It uses the terms of the sub-contracts to stimulate and incentivise the necessary behaviours and performance it wishes to see across other providers.

Process mapping

A tool used to chart each step of a process. It is commonly used to map the pathway or journey through part or all of a patient’s health care journey, and supporting processes. Process mapping is extremely useful as a tool to engage staff in understanding how the different steps in a process fit together, which steps add value, and where there may be waste or delays.

Queuing theory

An approach that enables the analysis of waiting lines in any setting where there is a mismatch between the demand for a service and the service’s capacity to meet that demand. Queueing theory has been applied to a range of service industries including banks, airlines, and telephone call centres as well as emergency services. In health care, queueing models can be useful in identifying appropriate levels of staff, equipment and beds as well as in making decisions about resource allocation and the design of new services.

Standard work

A detailed definition of the most efficient method to produce a product (or perform a service) at a balanced flow to achieve a desired output rate. It breaks down the work into elements, which are sequenced, organised and repeatedly followed.

Supply chain management

A way of managing a network of interconnected organisations involved in the ultimate provision of product or service packages required by end-users – from point of origin to point of use.

System

A construct or collection of different elements that together produce results not obtainable by elements alone. The elements, or parts, can include people, hardware, software, facilities, policies and documents; that is, all things required to produce system-level results. In health care, outcomes are often the results of work done by many in different parts of a system and therefore result from the whole rather than any individual elements. Some systems are simple and others are complex with features whose interactions are continually changing. The level of complexity is dependent upon the number of potentially interacting elements, their interdependence, and the degree of their heterogeneity. Complicated systems can generally be understood and controlled; complex systems less so.

Systems thinking

A way of thinking used to address complex and uncertain real world problems. It recognises that the world is a set of highly interconnected technical and social entities which are hierarchically organised and produce ‘emergent behaviour’, which is more than the sum of individual behaviours. It focuses on the way that a system’s constituent parts interrelate and how systems work over time and within the context of larger systems.

Theory of constraints

A theory based on the idea that a chain is only as strong as its weakest link. It recognises that movement along a process, or chain of tasks, will only flow at the rate of the task that has the least capacity. The approach involves:

identifying the constraint (or bottleneck) in the process and getting the most out of that constraint (since this rate-limiting step determines the system’s throughput, the entire value of the system is represented by what flows through this bottleneck)

recognising the impact of mismatches between the variations in demand and variations in capacity at the process constraint.

Toyota 3P method

A three step method (the 3Ps being production, preparation, process) developed by Toyota in order to reduce product development time and drive down start-up costs. In health care, the 3P method has been used to inform the design and delivery of new services and facilities. The design process, from the development of an outline vision through to the production of a final detailed design, is underpinned by lean principles.

Upstream and downstream

In the context of health and social care, ‘upstream’ refers to services that patients or service users will typically encounter at an early stage in their care journey ie primary care services, or to services designed to prevent ill-health ie public health services. ‘Downstream’ usually refers to the secondary or tertiary care services that patients or service users engage with at a later stage in their care journey.

Value stream mapping

A value stream is defined as all the actions required to bring a particular service or product, or combination of them, to the customer or service user. Value stream mapping is an improvement technique derived from lean production. It is used in health care to visualise an entire process or system and the flows of patients, service users, information and resources within it, with a view to identifying, analysing and eliminating waste.

Variation

The way in which the performance of a process changes over time. There are fluctuations in all processes over time (eg, day-to-day, week-to-week, month-to-month). This variation occurs naturally and should be expected. In health care services sources of ‘natural variation’ include the times of day that emergency patients arrive in hospital, the differences in symptoms and diseases that patients present with, and staff skills and motivation. However, much of the variation that occurs in health care is ‘artificial variation’ caused by the way services are organised and delivered: sources include the working hours of staff, how staff leave is planned, the availability of equipment, and the way elective admissions are scheduled. These all vary and will have a major impact on the flow, cost and outcomes of a process. Steps to understand and eliminate this artificial variation will help to ensure that services do not react unnecessarily or inappropriately to natural variation.

Wicked problem

A problem that cannot be tackled successfully through a linear, analytical approach. It is multi-causal, unstable, socially complex, and rarely sits within the responsibility of one organisation. There is usually no single, definitive solution to a wicked problem.

Wider determinants of health

The impact on health of a person’s age, sex and hereditary factors, individual lifestyle factors, social and community networks, living and working conditions (for example; education, training and employment, health, welfare services, housing, public transport and amenities), and general socio-economic, cultural and environmental conditions.

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