Project Quality Management

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Presentation transcript:

Project Quality Management PMBOK 5 ed, Schwalbe (2013)

Introduction In one of the biggest software errors in banking history, Chemical Bank mistakenly deducted about $15 million from more than 100,000 customer accounts. “The problem resulted from a single line of code in an updated computer program that caused the bank to process every withdrawal and transfer at its automated teller machines (ATMs) twice. For example, a person who withdrew $100 from an ATM had $200 deducted from his or her account, though the receipt indicated only a withdrawal of $100. The mistake affected 150,000 transactions”

Introduction Toyota Motor Sales U.S.A. is recalling approximately 247,000 cars because of potentially defective front passenger airbag inflators supplied by Takata Corp. The recall includes the 2002-'05 Lexus SC and Toyota Sequoia, and the 2003-'05 Toyota Tundra, Corolla and Corolla Matrix. More than 4.5 million cars are affected by the Takata recall Toyota has reached a record $1.32 billion settlement to resolve a criminal investigation into safety issues that have been linked to at least five deaths.

8. Project Quality Management Enter phase/ Start project Exit phase/ End project Initiating Processes Closing Planning Executing Monitoring & Controlling Processes Knowledge Area Process Initiating Planning Executing Monitoring & Contol Closing Cost   Quality Planning  Perform Quality - Assurance Perform Quality - Control

Project Quality Management Quality is degree to which the project fulfills requirements Quality Management includes creating and following policies and procedures to ensure that a project meet the defined needs (from the customer’s perspective). “Completing project with no deviations from the project requirements”

Quality Concepts Quality vs. Grade Quality: the degree to which a set of inherent characteristics fulfill requirements Quality level that fails to meet quality requirements is always a PROBLEM Grade: a category assigned to product or service having the same functional use but different technical characteristics Low grade may not be a problem

Quality Management: Important points Customer satisfaction Conformance to requirement Fitness for use: product/service produced must satisfy real needs Prevention over inspection Cost of preventing mistakes < cost of correcting Continuous improvement (Kaizen) Based on PDCA cycle PLAN,DO,CHECK, ACTION Using quality improvement initiatives e.g. TQM, 6 sigma Using process improvement models e.g. OPM3, CMMI, Malcolm Baldrige Management responsibility To provide the resource needed to succeed

Quality Concepts This practice is not recommended Gold Plating: giving the customer extras This practice is not recommended Marginal Analysis: looking for the point where.. “benefits/revenue to be received from improving quality EQUALS the incremental cost to achieve that quality” .

Quality Concept It forces attention on quality practices. Just in Time (JIT): just when they are needed or just before they are needed. It forces attention on quality practices. Supermarket concept Total Quality Management (TQM) Company & their employees focus on finding ways to continuous improve the quality of their business practices & products

8.1 Plan Quality “Set a standar” The process of identifying requirement and/or standards for the project and product and documenting how the project will demonstrate compliance. What is quality? How will we ensure it? Inputs Project Management Plan Stakeholder register Requirements Documentation Risk register Enterprise environmental factors Organizational process assets Tools & Techniques Cost benefit analysis Cost of Quality (CoQ) Seven Basic Quality tools Benchmarking Design of experiments Statistical sampling Additional quality planning tools meetings Outputs Quality management plan Quality metrics Quality checklists Process improvement plan Project document updates “Set a standar”

Quality Planning Techniques Cost benefit analysis Weight the benefits versus the cost of meeting quality requirements Design of Experiments (DOE) Use experimentation to statistically determine what variable will improve quality Systematically changing all of the important factors, rather than changing the factors one at a time Statistical sampling We need it since studying entire population would take too long, too much cost, be too destructive Flow charting Use to see a process or system flows and find potential quality problem

Cost of Quality Cost of quality (CoQ) Looking at what the cost of conformance and nonconformance to quality and creating an appropriate balance .. should be less then.. < Image Source: PMBOK Guide 4nd Edition. PMI © 2008

Cost of Nonconformance Cost of Quality Cost of Conformance Cost of Nonconformance Quality training Rework/Repair Quality audit Scrap Studies, Surveys Inventory cost Effort to ensure everyone knows the process to use to complete their work Warranty cost Quality staff Lost business

Seven quality tools Ihikawa/Fishbone chart/ cause effect diagram/ 5 whys,

Seven quality tools Scatter diagram/Regression Analyis Checksheet  collect and analyze data. Scatter diagram/Regression Analyis if there is a relationship between two variables, diagonal line

Seven quality tools Histogram a bar graph of a distribution of variables. Pareto a histogram that can help you identify and prioritize problem areas. 80/20 Logi 55% referred to as the 80-20 rule meaning that 80 percent of problems are often due to 20 percent of the causes.

Seven quality tools Flowcharting analyze how problems occur and how processes can be improved. Run Chart: To look at history and see a pattern of variation

Normal distribution curve Control Charts Rule of seven (non random data points) Out of control Assignable/special cause Normal and expected variation Usually 3 or 6 sigma Upper control limit Lower control limit Normal distribution curve Out of control Assignable/special cause Specification limit: is point determines by customer, not calculated based on control chart

Additional Quality Planning tools Six Sigma’s target for perfection the achievement of no more than 3.4 defects, errors, or mistakes per million opportunities. Define, Measure, Analyze, Improve, and Control Another modern quality management: Deming, Juran, Crosby, Ishikawa, Taguchi, and Feigenbaum, MBNQA, ISO, CMMI

Testing tasks in the software development life cycle

Output Quality Management Plan Project management method Contains: Project management method Role and responsibility in managing quality Deliverable measurement Standard for monitoring & control purpose Process review Major check points Inspection & acceptance criteria Quality metrics is input for Quality Assurance AND Quality Control Quality checklist is input for Quality Control ONLY

output Quality metrics Quality checklists An operational that describes how quality control process will measure it. What are things that important to measure and decide what measurement is acceptable Examples: failure rates of products, availability of goods and services, and customer satisfaction ratings. Quality checklists A list of items to inspect, step to be performed and note if any defects found

Important scope aspects of IT projects that affect quality include functionality and features: the degree to which a system performs its intended function. system outputs: define clearly what the screens and reports look like for a system. Performance : how well a product or service performs the customer’s intended use. Reliability: the ability of a product or service to perform as expected under normal conditions. Maintainability: the ease of performing maintenance on a product.

8.2 Perform Quality Assurance The process of auditing the quality requirement and the result of quality control measurements to ensure appropriate quality standards and operational definitions are used. Inputs Quality Management plan Process improvement plan Quality metrics Quality control measurement Project Documents Tools & Techniques Plan quality and Perform Quality Control tools & techniques Quality audits Process analysis Outputs Organizational process updates Change requests Project management plan updates Project document updates

Are we using the standard? Can we improve the standard? Quality Assurance Are we using the standard? Can we improve the standard? Quality Audits To see if you are complying with company policies, standards & procedures Determine whether they are used efficiently & effectively Identify all the good practices being implemented Identify all the gaps/shortcomings Look for new lesson learned & good practices Process Analysis Includes root cause analysis

8.3 Perform Quality Control The process of monitoring and recording results of executing the quality activities to assess performance and recommend necessary changes. Inputs Project management plan Quality metrics Quality checklist Work performance measurements Approved change requests Deliverables Project Documents Organizational process assets Tools & Techniques Seven Basic quality tools Statistical sampling Inspection Approved change request s reviews Outputs Quality control measurements Validated changes Validated deliverables Works Performance informations Organizational process updates Change requests Project management plan updates Project document updates

BaCKUP SLIDES

Percentage of occurrences between two control limits Important Terms Mutual Exclusive: if two events cannot both occur in a single trial Probability: something will occur Normal Distribution: common probability density distribution chart Statistical independence: the probability of one event occurring does not affect the probability of another event occurring Standard deviation (or Sigma): how far you are from the mean 3 or 6 sigma Represent the level of quality has decided to try to achieve 6σ is higher quality standard than 3σ Used to calculate the upper and lower control limits in a control chart Number of σ Percentage of occurrences between two control limits 1 68.26% 2 95.64% 3 99.73% 6 99.99985%