“Quality”
Degree to which deliverable/project fulfills the requirements
Grade
General category of deliverable, indicates common function but different technical specs
E.g. different grades of bolts
Definition of Done
(Agile)
At project, release, and story levels
Gold plating
Extra functions, higher grad components, etc.
Usually what project team thinks customer will value, but is outside of scope.
Prevention over inspection
Quality must be planned in, not inspected in
Continuous improvement
Kaizen - technically improving through change, but treated as synonymous
Total Quality Mgmt (TQM) - continuous improvement approach
Just in Time (JIT)
Avoids waste of excess inventory, and mgmt of that inventory
Quality management process
Ensuring project is completed according to project requirements
Cost-benefit analysis
(Data analysis)
Cost of quality
Cost of Quality (COQ)
(Data analysis)
Conformance: training, studies, measurements, response to feedback, related communication
Nonconformance: rework, scrap, inventory, warranties, lost business
Cost of non/conformance
Prevention - planned cost
Appraisal - during monitoring and controlling
Internal failure - found during inspection by customer
External failure - found after final product delivered
Logical data models
(Data representation)
Describe quality needed on project, and connection to different elements
Matrix diagrams
(Data representation)
Way to sort quality requirements and identify most critical ones
Mind mapping
(Data representation)
Way to collect requirements and info, and illustrate impact on other areas
Flowcharts
(Data representation)
e.g. SIPOC (supplier, input, process, output, and customer)
Affinity diagrams
(Data representation)
Way to organize and group quality-related elements
Cause-and-effect diagrams
(Data representation)
e.g. Fishbone, Ishikawa; shows possible causes grouped by category
Histograms
(Data representation)
Show type and frequency of issues
Scatter diagrams
(Data representation)
Shows datapoints related to two variables
Test and inspection planning
How to confirm that required quality levels are being met
Quality management plan
What “quality” is for the project, and how to deliver that; also plans to improve efficiency and prevent problems
Quality metrics
Define how quality is to be measured
Alternatives analysis
(Data analysis)
E.G. build-or-buy
Design of experiments (DOE)
(Data analysis)
Related to alternatives analysis
Quantitative testing to see the impact of different variables on quality