MBA742 PM - Module 4 Terms Flashcards
Project Quality Management
Includes the processes and activities of the performing organization that determine quality policies, objectives, and responsibilities so that the project will satisfy the needs for which it was undertaken.
Benchmarking
The comparison of actual or planned practices, such as processes and operations, to those of comparable organizations to identify best practices, generate ideas for improvement, and provide a basis for measuring performance provides comparisons of the results among projects, which are used as a basis of measurement to generate ideas to improve performance.
Quality Assurance (QA)
The process of auditing the quality requirements and the results from quality control measurements to ensure that appropriate quality standards and operational definitions are used.
Mostly about ensuring compliance with Process
Remember, this is PROCESS oriented
Makes sure you are doing the right things, the right way
Quality Control (QC)
The process of monitoring and recording results of executing the quality activities to assess performance and recommend necessary changes.
PRODUCT oriented
Makes sure the results of what you’ve done are what you expect
Control Charts
A graphic display of process data over time and against established control limits, which has a centerline that assists in detecting a trend of plotted values toward either control limit
Control Limits
The area composed of three standard deviations on either side of the centerline or mean of a normal distribution of data plotted on a control chart, which reflects the expected variation in the data.
Specification Limits
The area, on either side of the center line, or mean, of data plotted on a control chart that meets the customer’s requirements for a product or service. This area may be greater than or less than the area defined by the control limits.
Statistical Sampling
Choosing part of a population of interest for inspection.
Design of Experiments
A statistical method for identifying which factors may influence specific variables of a product or process under development or in production
Trend Analysis
An analytical technique that uses mathematical models to forecast future outcomes based on historical results. It is a method of determining the variance from a baseline of a budget, cost, schedule, or scope parameter by using prior progress reporting periods’ data and projecting how much that parameter’s variance from baseline might be at some future point in the project if no changes are made in executing the project
Quality
The degree to which a set of inherent characteristics fulfills requirements
Grade
A category or rank used to distinguish items that have the same functional use (e.g. hemmer) but do not share the same requirements for quality (e.g. different hammers may need to withstand different amounts of force).
Customer Satisfaction
Within the quality management system, a state of fulfillment in which the needs of a customer are met or exceeded for the customer’s expected experiences as assessed by the customer at the moment of evaluation
Prevention over inspection
The cost of preventing mistakes is generally much less that the cost of correcting mistakes when they are found by inspection or during usage
Cost of Quality
A method of determining the costs incurred to ensure quality. Prevention and appraisal costs (cost of conformance) include costs for quality planning, quality control (QC), and quality assurance (QA) to ensure compliance to requirements (i.e., training, QC systems, etc.). Failure costs (cost of nonconformance) include costs to rework products, components, or processes that are non compliant, costs of warranty work and waste, and loss of reputation
Continuous Improvement
Referred to as “kaizen” in Japan, CI is an ongoing effort to improve products, services, or processes. These efforts can seek incremental improvement over time or breakthrough improvement all at once. This concept is described by Shewhart and Deming as Plan-Do-Check-Act.
Precision
A measure of exactness
Accuracy
A measure of correctness
Plan Quality Management Process
The process of identifying quality requirements and/or standards for the project and its deliverables, and documenting how the project will demonstrate compliance with quality requirements
Quality
something to plan in, not inspect in.
Organizations should invest in prevention and appraisal efforts, establish how quality will be measured throughout the project, and be certain the end result will conform to the customer’s stated requirements.
Cost of Quality (COQ)
Refers to the total cost of all efforts to achieve product, service, or result quality. The cost of prevention and appraisal should be a part of the cost of doing business and should not be viewed as separate and distinct.
Cost of Conformence
Includes Prevention Costs (Build a quality product) and Appriasal Costs (Assess the quality). These dollars are money spent during the project to avoid failures
Cost of Nonconformence
Include Internal Failure Costs (Failure found by the project, like rework and scrap) and External Failure Costs (Failures found by the customer)
Prevention
Refers to designing quality in, allowing for project team-member, end-user, or customer training and the mapping out of a quality strategy before you begin work in order to keep you on course
Includes: design reviews, training and quality planning
Appraisal
Refers to preproduction and production inspections, tests, or sampling that is done to assure that the final product will be within the product specification levels.
Includes: lab tests, in process testing costs assocaited with these type of activities
Internal failures
Those that occur before leaving the organization and include scrap, rework, repair, and defect valuation. This causes costs to rise and employees to get disgruntled about having their efforts wasted. The goal is to design quality in so there is little to catch at the inspection phase.
External failures
Those discovered by the customer include returns, complaints, corrective action, and field maintenance period there is no way to know the true cost of external failures. Unhappy customers may complain to their friends and acquaintances about the failure, and you will never know what the loss of that business might be. If loss of life occurs because of an unsafe product, the cost is immeasurable.
Seven Basic Quality Tools - Cause and Effect Diagram
A decomposition technique that helps trace an undesirable effect back to its root cause. Also referred to as Fishbone Diagram and Ishakawa Diagram
Seven Basic Quality Tools - Flowchart
The depiction in a diagram format of the inputs, process actions, and outputs of one or more processes within a system.
Seven Basic Quality Tools - Checksheet
A tally sheet that can be used as a checklist when gathering data.
Seven Basic Quality Tools - Pareto Diagram
A histogram, ordered by frequency of occurrence, that shows how many results were generated by each identified cause
Seven Basic Quality Tools - Histogram
A special form of bar chart used to describe the central tendency, dispersion, and shape of a statistical distribution
Seven Basic Quality Tools - Control Chart
A graphic display of process data over time and against established control limits, which has a centerline that assists in detecting a trend of plotted values toward either control limit.
Seven Basic Quality Tools - Scatter Diagram
A correlation chart that uses a regression line to explain or to predict how the change in an independent variable will change a dependent variable.
Cause and effect diagram (Fishbone/Ishakawa Diagram)
A decomposition technique that helps trace an undesirable effect back to its root cause. Also referred to as Fishbone Diagram and Ishakawa Diagram
Control Charts
A graphical display of the results of a process.
Are used to determine whether a process is within control limits
List causes that may be a result of random variation or unusual events.
List results based on:
Rule of Seven
Hugging
Out-of-control limits
Control Chart Example
See image
Control Chart Explained
The quality Control Chart contains a line in the center that represents the average of the two other lines of the control chart, the upper and lower control limits. These are set by the company, rather than the customer, and are intended to be more rigorous than the customers expectations, which are represented by the specification limits. These control limits are chosen so that if the process is in control, all the sample points will fall between them. As long as the points plotted are within the control limits, the process is assumed to be in control, and no action is necessary. However, a point that plots outside the control limits is interpreted as evidence that the process is out of control, and investigation and corrective action is required to find and eliminate the assignable, or special causes, responsible for this result. The data points are plotted and connected with straight line segments for easy visualization.
Control Chart - Rule of Seven
A run - When several successive points line up on one side of the central line
Length of run - The number of points in that run. There is abnormality in the process if the run has a length of seven points.
The rule of seven also states that seven consecutive data points trending in one direction indicates and abnormality.
What should Management do when a rule of Seven condition is identified?
Investigate the process to determine what might be influencing it
Process Flowcharts and System Flowcharts
Both types of flowcharts graphically display how various elements of a process or system relate. As a project progresses, understanding the tasks and decisions that occur in a given process can help the project team anticipate what and where quality problems might surface, which helps the team to develop approaches for dealing with them.
Pareto Diagrams
Are histograms
Are ordered by frequency of occurrence
Have results displayed by type or category of cause
Use rank ordering to guide the corrective action
Use the 80/20 rule
Most quality problems result from a small number of causes. Quality experts often refer to the principle as the 80/20 rule, which means that 80 percent of problems are caused by 20 percent of the potential sources.
A Pareto diagram puts data in a hierarchical order from most occurrences to fewest occurrences, suggesting that the highest number of occurrences, if resolved, would produce the greatest improvement. When seeking operational or process improvement project opportunities within an organization, this can be a helpful tool in deciding what to fix first.
Histogram
Consists of a series of bar charts that shows a distribution of data. The columns represent information attributes describing a situation, and the height of each bar represents the frequency of occurrence of each item listed.
This tool provides an excellent means to identify problems in a process by the display of each distribution.
Histogram Example
Use image to the right
Scatter Diagram (Scatter Plot Correlation)
Organize dates using two variables, and the relationship or correlation is shown on a simple graph with X and Y coordinates. The correlation can be negative, positive, or curvilinear, or the data might show that there is no correlation at all.
Scatter Plot Correlation Examples
See image
Design of experiments (DOE)
A statistical method that assists in identifying factors that may influence variables to find the most acceptable product combinations (for example, the best combination of flour, sugar, heat, and time to make a cake).
Performing Quality Assurance Process
The process of auditing the quality requirements and the results from quality control measurements to ensure that appropriate quality standards and operational definitions are used.
QA may be performed by:
QA department
A related discrete organization
Selected individuals within line organization