What is Quality and Grade
Quality: The degree to which a set of inherent characteristics fulfill requirements.
Grade: Grade is a category used to label different products or services that compete to meet the same needs of the end user.
Ex: Quality= Flip phone makes calls. Grade= Iphone has lots of features user likes(camera, video calling, touch screen more apps)
User desirability: Low desire= low grade, high desire= high grade.
How is project impacted if requirements are not gathered well.
Impact on: Cost
Poor requirements gathering leads to scope creep, rework, or misaligned deliverables. This increases costs due to additional resources, changes, or corrective actions that weren’t originally accounted for.
How is project impacted if requirements are not gathered well.
Impact on: Schedule
Inadequately defined requirements can lead to delays. Tasks may need to be revisited, causing the project to overrun its timeline due to rework, additional analysis, or the need for more stakeholder input.
How is project impacted if requirements are not gathered well.
Impact on: Quality Planning
How It Ties into the Question: In the given scenario, if the requirements are not well gathered, the following impacts will occur:
* Cost (A): The project may need to spend additional resources on reworking deliverables, conducting additional quality control checks, and correcting errors caused by misunderstandings.
* Schedule (C): Time will be lost due to unclear or changing requirements, causing delays in completing deliverables as the team tries to meet the customer’s evolving expectations.
* Quality Planning (E): Without clear requirements, it becomes impossible to effectively plan for quality because the project team won’t have a solid foundation for defining what constitutes an acceptable deliverable. This compromises the overall quality of the project output and increases the risk of customer dissatisfaction.
How is project impacted if requirements are not gathered well.
Impact on: Quality Assurance vs Quality Planning
But Greatly Affects Quality Planning: since they use the requirements as the basis for all the activities in quality planning. Lack of requirements will create a poorly structured plan.
What are quality metrics and how do they pertain to the deliverables?
Quality metrics are a description of a project or product attribute and how to measure it, hence it would be able to identify whether the customer would be satisfied with the deliverable as the metrics are clear and objective.
Who are the 3 Quality Pioneers?
Philip Crosby, Joseph Juran, Edward Demings
Edwards Deming: Plan-Do-Check, Continuous Improvement and Quality culture driven by mgmt, father of quality
* analyzing and improving processes.
* To improve the performance of everyone,
Juran: Trilogy(QP, QA, QC) quality should be planned for not just inspected in, Pareto(80/20)
Crosby: zero defects(Crosby=Cross(X=Zero)) Do it right first time (DIRFT), cost of quality
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Who created Plan Do Check?
William Edwards
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Who made the analyzing and improving processes for Continuous Improvement?
* To improve the performance of everyone,
Deming
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Who pioneered the need for organizations to meet customer expectations
Juran: By planning for quality we made sure requirements from customer were met throughout project lifecycle.
Who is the Father of Quality who created the Plan Do Check(PDCA) Cycle?
Deming
What is the PDCA Cycle?
how did Juran help with Continuous improvement in Quality?
Using the Juran Trilogy a 3 step continous improvement strategy. To help know and exceed customer expectations.
How did Crosby contribute to Continous improvement?
W/ his zero defect concept. In order to get optimal results org should strive for error free performance. With the following principles.
* Prevention: Prevent flaws is more important than fixing them.
* Quality Free: Investing in quality upfront saves money over dealing w/ the consequences of poor quality.
* Continous Improvement: Encourage culture of continous improvement thorughout org.
How did Deming contribute to Continous improvement
Emphasized systematic approach to CI. Pushed implementation of quality management concept that includes everyone in the org.
* Org can get long term success by focusing on long term progress rather than short term benefits. PDCA cycle gives fw for CI.
Cost of Quality:
Control Chart Rules
To see if process stable or has predictable performance.
Process is unstable/ out of control when:
* Any point above or below upper/lower control limit, closer to spec limit.
* SEVEN or more consecutive points on one side of center line
* FIVE or more consecutive points Upward/DOWNWARD trend.
* Control Chart
* Control limit: 3 std devs
* Outter Spec Limit= out of control
Design of Experiments
Statistical method in quality used to test multiple factors same time, to identify which factors have biggest impact.
help project optimize process, improve quality, make data driven decisions.
Who is the Father of Quality who created the Plan Do Check(PDCA) Cycle?
Deming
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What are the rules for a control chart?
Out of Control: Outside control limits or
* 5 upward/downward trends
* 7 points consecutively either above or below median.
Control Limit: 3 std devs from median, expected deviations.
What is DMAIC?
DMAIC: a structured dta driven methodology from six sigma for optimizing and redesigning processes.
* Use: address complex, deeply rooted problems requiring rigorous analysis.
* Reducing defects, improving efficiency or achieving measurable outcomes.
* Solutions requiring thorough data collection, analysis, and process re-engineering.
DMAIC vs PDCA?
What are the Continuous Improvement Methods?
Lean Six Sigma: DMAIC- Define, Measure, Action, Control it
* Efficiency Focus
Deming: PDCA
Lean: Remove waste to improve process
Kaizen: Small changes over time
Crystal Method: Computer based CI approach thats people focused.