CQIA key terms

The degree to which a product, service, or process meets stated and implied customer requirements, judged by how well it satisfies the people who receive and use it.

Planned, systematic activities and process controls built into how work is done so that requirements are met consistently; the emphasis is on prevention and process design rather than on inspecting outputs.

The inspections, tests, and measurements used to verify that outputs meet requirements and to catch defects before they reach the customer.

A formal set of documented policies, processes, responsibilities, and resources an organization uses to direct, control, and continually improve its quality-related work.

A short statement from top management of the organization's overall quality intentions and direction, which provides a framework for setting and reviewing quality objectives.

Money lost because work is not done right the first time, including scrap, rework, warranty claims, returns, complaint handling, and lost goodwill.

The customer's perception of how well a product or service met expectations, measured through feedback, surveys, complaints, and repeat business rather than through internal opinion.

A person or department inside the organization who receives the output of another person's or department's work and depends on it to do their own job well.

The features and benefits a customer is willing to pay for, weighed against the cost and effort of providing them; work that adds no value is a candidate for elimination.

A failure to meet a specified requirement, whether in a product, a service, a process step, or a system document; each occurrence needs to be recorded and handled.

A written agreement stating a team's purpose, scope, deliverables, timeline, decision authority, and boundaries, developed with the sponsor so members share the same expectations.

A group whose members come from different departments or specialties, assembled so varied perspectives and skills can be applied to a problem or process that crosses organizational boundaries.

A neutral person who guides a team's process, such as the agenda, participation, and group dynamics, without supplying content or taking sides on the decision being made.

Explicit behavioral expectations a team agrees to at the start, such as starting on time, listening without interrupting, and keeping commitments, which the group uses to correct itself.

A decision all team members can support and commit to, even when it is not their first choice, with dissent heard and recorded rather than simply outvoted.

The predictable phases a group passes through, commonly forming, storming, norming, performing, and adjourning, each calling for different emphasis on direction, conflict, cohesion, and closure.

A structured way of surfacing and working through disagreement so that differing views inform the solution instead of damaging relationships, typically by clarifying interests and attacking the problem, not the person.

Timely, specific acknowledgment of individual and team contributions, linked to the behaviors the organization wants, that sustains engagement and continued participation in improvement work.

A four-step improvement loop: plan a change and predict its results, do it on a small scale, check actual results against the prediction, then act by standardizing or adjusting before repeating.

Continuous, incremental improvement made by the people who do the work, usually through many small changes to a process rather than one large project or capital investment.

A five-phase project roadmap, define, measure, analyze, improve, and control, used to solve an existing problem with data and to hold the gains once they are achieved.

A disciplined, data-driven approach that reduces process variation and defects, often targeting no more than 3.4 defects per million opportunities and relying on trained practitioners and statistical methods.

An improvement philosophy that shortens lead time by removing waste, meaning activities that consume resources without adding customer value, and by making work flow at the pace of demand.

The Japanese term for waste: any activity that uses resources without creating customer value, commonly grouped as overproduction, waiting, transport, overprocessing, inventory, motion, and defects.

Action taken to eliminate the underlying cause of a detected nonconformity so it does not happen again; it goes beyond repairing the immediate symptom.

A documented, current best method for performing a task, including sequence, timing, and quality checks, giving a baseline against which improvement changes can be measured.

A bar chart of problems or causes ordered by frequency, with a cumulative percentage line, used to show that a small number of causes produce most of the effect.

A branching diagram that organizes possible causes of a problem into categories such as people, methods, machines, materials, measurement, and environment, to guide the investigation.

A simple prepared form for tallying how often events, defects, or categories occur, making data collection quick and consistent at the point where the work happens.

A bar chart of measured data grouped into ranges, showing the shape, center, and spread of a distribution so that variation can be seen at a glance.

A time-ordered plot of a process measure with statistically calculated limits that separate routine variation from signals of a special cause that needs investigation.

A plot of paired values for two variables, used to see whether they tend to move together, suggesting a relationship that must then be confirmed by further study.

A diagram using standard symbols to show the sequence of steps, decisions, and handoffs in a process, making hidden loops, delays, and rework visible.

A questioning technique that repeatedly asks why a problem occurred, moving from symptom toward underlying cause, usually stopping when further asking yields no useful action.

A structured team analysis that lists potential failure modes, rates each for severity, occurrence, and detection, and prioritizes preventive action on the highest-risk items.

A tool that sorts a large set of brainstormed ideas into related groups by theme, helping a team find patterns in unstructured input before deciding what matters most.

A technique that lists the forces supporting and opposing a proposed change and weighs their strength, so plans can strengthen drivers and reduce resistance.