The Plan-Do-Study-Act (PDSA) is an iterative problem-solving model to aid in process improvement activities. This model uses the steps to evaluate a solution and gain "valuable learning and knowledge for the continual improvement of a product or process," Deming Institute https://deming.org/explore/p-d-s-a.
The PDSA process is used to help teams implement a series of small tests of change following the development of an AIM Statement;
- To better serve all customers (patients, employees, leadership, vendors, etc.) by establishing a culture of excellence.
- To provide a competitive advantage in your market.
Materials Needed
- A team of people
- Basic knowledge of Process Improvement tools
- A way to document and track the process, a paper or computerized method with graphs and charts
How do I do it?
Plan
- Document what you plan to do. Describe the problem and state the objective.
- Possible tools to use in this phase include:
- Brainstorming, Affinity Diagram, Check Sheet, Control Chart, Flow Chart, Histogram, Interrelationship Diagram, Pareto Chart, Prioritization, Statistical Process Control Radar Chart, Run Chart
- After identifying the major causes of the problem using the Model for Improvement, determine what changes need to be made to improve the process. What will you do to improve?
- Make predictions about what might happen and why. "If we do __________, then __________ will happen."
- Develop a plan to test the change. Identify the following elements:
- What is going to happen? (What are you testing?)
- When is it going to happen?
- How long will it last?
- Who is responsible for making it happen?
- What types of data will be collected? Who will collect it? How will it be collected?
Example:
Based on the data we collected and other tools we used, we determined that the long wait time for patients in the lobby is due to a couple of causes: 1) doctor not available when needed; 2) nurse not available when needed.
Do
- Implementation of the plan outlined during the Plan stage.
- Possible tools to use in this phase:
- Activity Network Diagram, Check Sheets, Control Charts, Flow Charts, Gantt Chart, Histogram, Run Charts
- Carry out the test.
- Verify all systems are ready for data collection.
- Prepare staff regarding what will be happening during the "Do" phase.
- Train the individuals involved how to collect the data.
- Document problems or unexpected observations. Include a space or way for staff to write down observations of occurrences during the day that may affect the data.
- Were you able to follow the instructions in the Plan phase? If not, why not?
- What occurred that interfered with the planned process?
- Analyze the data.
- Was the data collected per instructions?
- Are there any gaps?
- Use a bar graph, run chart, histogram or another tool to display data for easier analysis.
Study
- What did you learn?
- Possible tools to use in this phase:
- Check Sheet, Control Chart, Flow Chart, Pareto Chart, Run Chart
- Complete the analysis.
- What is the data telling you?
- Are there patterns?
- Compare collected data to your predictions.
- Was the test similar or different than your predictions?
- What was unexpected in your findings?
- Summarize what was learned.
Act
- Refine the change based on what was learned from the test.
- Possible tools to use in this phase:
- Affinity Diagram, Activity Network Diagram, Brainstorming, Force Field Analysis, Gantt Chart, Nominal Group Technique, Prioritization Matrix, Radar Chart
- Determine if modifications need to be made (adapt, adopt, or abandon).
- Adapt - Make any modifications to your data collection or your teaching instructions if needed.
- Adopt the tool and the findings if everything meets expectations.
- Abandon the test and begin again if the test did not accomplish what was expected.
- NOTE: This does not mean that you have a bad outcome. Only abandon if you did not measure what you intended to measure.
- Prepare a plan for the next test.
Remember: The PDSA is an iterative process
Example: Based on the example above, the team determines from data analysis, that providers and nurses are unavailable most of the time due to 2 reasons: 1) Too many interruptions from Pharmacy representatives, and 2) Attendance at mandatory meetings.
The team would begin a new PDSA cycle with the aim to improve wait times by minimizing or removing the interruptions stated above.
The cycle would continue until goals are met
Remember: The PDSA is an iterative process
Example: Based on the example above, the team determines from data analysis, that providers and nurses are unavailable most of the time due to 2 reasons: 1) Too many interruptions from Pharmacy representatives, and 2) Attendance at mandatory meetings.
The team would begin a new PDSA cycle with the aim to improve wait times by minimizing or removing the interruptions stated above.
The cycle would continue until goals are met