1 / 9

Quality Improvement Model

Quality Improvement Model. Define Process. Select Measures. Collect & Interpret Data. Purpose: To provide a sequence of steps to improve any process so that the customers will realize the highest quality and value. Is Process Stable ?. No. Investigate & Fix Special Causes. Yes.

burt
Download Presentation

Quality Improvement Model

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Quality Improvement Model Define Process Select Measures Collect & Interpret Data Purpose: To provide a sequence of steps to improve any process so that the customers will realize the highest quality and value. IsProcessStable? No Investigate & Fix Special Causes Yes IsProcessCapable? No Improve Process Capability Yes Develop Control Plan to Maintain Current Process

  2. Define Process Define Process Select Measures Collect & Interpret Data IsProcessStable? No Investigate & Fix Special Causes 1) Communicate to an individual or a team a clear understanding of the process under study. 2) Establish improved and consistent process operations. 1) Identify and list Suppliers, Inputs, Outputs, and Customers (SIPOC/Big Block) 2) Develop flow chart of process steps (Schematic). 3) Develop process map 3) Assure understanding of related procedures. • Verify practice vs. procedure of S.O.P's 1) Process Map Excel Workbook 2) Flow Charts or Schematic/SIPOC or Big Block/Process Map/Detailed Process Map 3) S.O.P's Yes IsProcessCapable? Improve Process Capability No Yes Develop Control Plan to Maintain Current Process Purposes: Activities: Tools:

  3. Purposes: • 1) Develop understanding of customer needs. • 2) Determine "possible" process response control points. • 1) Review customer needs. • 2) Identify/Develop measures that reflect those needs. • Describe/Review sampling/testing plans and methods. • Process Map Details • Types of Process Control (Monitor, SPC, EPC, SOP) • 1) Customer Input • Sampling and measurement techniques • Process Map Master.XLS Activities: Tools: Select Measures Define Process Select Measures Collect & Interpret Data IsProcessStable? No Investigate & Fix Special Causes Yes IsProcessCapable? Improve Process Capability No Yes Develop Control Plan to Maintain Current Process

  4. Purposes: • 1) Begin collecting and analyzing data from the process. • 1) Analyze existing data from the process. • Determine needs for new data and develop systems for collecting data. • Understand sources of variation in process data • 1) Run Charts • 2) Histograms • 3) Pareto Charts • Cause-Effect Matrix (CandE_Matrix.XLS) • Minitab Software Activities: Tools: Collect & Interpret Data Define Process Select Measures Collect & Interpret Data IsProcessStable? No Investigate & Fix Special Causes Yes IsProcessCapable? Improve Process Capability No Yes Develop Control Plan to Maintain Current Process

  5. Purposes: • Determine stability of key measures of the product. • Understand differences between common and special cause sources of variation. • 3) If not stable, proceed to block on "Investigate and Fix Special Causes". • 4) If stable, proceed to block on "Is Process Capable?" • 1) Collect data from process in time order. • Identify presence of special causes. • Understand how to calculate control limits • Use Minitab to create control charts • Understand differences between Sigma_S and Sigma_C. • Understand differences between control limits and specifications. • Control Charts • Minitab Software Activities: Tools: Is Process Stable? Define Process Select Measures Collect & Interpret Data IsProcessStable? No Investigate & Fix Special Causes Yes IsProcessCapable? Improve Process Capability No Yes Develop Control Plan to Maintain Current Process

  6. Purposes: • 1) Achieve stability of the measures. • 2) Establish permanency of solutions to recurring special causes. • 3) Improve procedures and training. • Daily Operations • 1) Assure consistent operations • Investigate reasons for instabilities • Compensate process when needed • Document root causes of instabilities and compensation effects • Long-Term System Changes • 1) Implement preventive & corrective actions for special causes • 2) Assure stability of raw materials • Analyze data for stability problems, e.g., differences among crews, equipment, etc. (Exploratory Data Analysis • 1) Control Charts • 2) Special Cause Action Plans • 3) SOP's • FMEA • Process Map (Details!), C&E Matrix Activities: Tools: Investigate& Fix Special Causes Define Process Select Measures Collect & Interpret Data IsProcessStable? No Investigate & Fix Special Causes Yes IsProcessCapable? Improve Process Capability No Yes Develop Control Plan to Maintain Current Process

  7. Purposes: • 1) Determine process adequacy. • 2) If not capable, proceed to block on "Improve Process Capability". • If capable, proceed to block on "Develop Control Plan to Maintain Current Process". • Determine test method adequacy. • Compare histogram to customer requirements (specifications). • Calculate C-Family (Cp, Cpk) and P-Family (Pp, Ppk) capability indicies. • Analytical Labs: Calculate percent variation due to the test, percent gauge R&R and P/T Ratio. • 1) Control Charts • Histogram • Minitab Software Activities: Tools: Is Process Capable? Define Process Select Measures Collect & Interpret Data IsProcessStable? No Investigate & Fix Special Causes Yes IsProcessCapable? Improve Process Capability No Yes Develop Control Plan to Maintain Current Process

  8. Purposes: • 1) Determine/Identify fundamental changes to the process to improve capability. • 1) Analyze data statistically (Exploratory Data Analysis - EDA) • 2) Perform trials of possible fundamental changes to the process. • 3) Implement changes (if positive results occur.) • 1) Standardization • 2) Designed experiments (DOE) • 3) Breaking out process steps (Process Map) • 4) Isolating sources of variability (ASM/DOE) • 5) Separating out common causes (stratification. ASM) • Brainstorming • Scatter Plots (C&E / ASM) • Mintab Software Activities: Tools: Improve Process Capability Define Process Select Measures Collect & Interpret Data IsProcessStable? No Investigate & Fix Special Causes Yes IsProcessCapable? Improve Process Capability No Yes Develop Control Plan to Maintain Current Process

  9. Purposes: • 1) To maintain the process improvements that have been made • 2) To continually improve the process. • 1) Implement control charts, strategies for real-time problem solving, SOP and EPC. • Implement systems for summarizing and analyzing data for recurring special causes. • Develop documentation package for process. • Use results from DOE and data analysis to determine critical inputs to control. • 1) Control Charts • 2) Cause-Effect Matrix • 3) Pareto Charts • 4) Brainstorming • 5) FMEA • SCAP • SOP's • Control Plan Summary Sheet.XLS • Process Map Details Activities: Tools: Develop Control Plan to Maintain Current Process Define Process Select Measures Collect & Interpret Data IsProcessStable? No Investigate & Fix Special Causes Yes IsProcessCapable? Improve Process Capability No Yes Develop Control Plan to Maintain Current Process

More Related