Leading the production of multi-variance charts

URN: SEMBIT430
Business Sectors (Suites): Business Improvement Techniques Suite 4
Developed by: Enginuity
Approved on: 2023

Overview

This standard covers the competencies required for leading the production of multi variance charts.  It involves approving the selection of a suitable activity on which to carry out the multi variance charting process, consulting with the appropriate people and directing the gathering of the relevant data necessary for the analysis.  You will be required to use the data collected to lead the production of a data demographics form for the process and subsequently approve a multi variance chart showing within part variation, piece-to-piece variation and time-to-time variation.  You will need to lead on the recording and displaying of the information on such as bar charts, histograms, Pareto diagrams, stem and leaf diagrams, box plots and time series charts.  You will also be expected to approve a report of the activity highlighting the opportunities for improvement and manage an action plan, which makes recommendations of how they can be implemented.

Your responsibilities will require you to comply with organisational policy and procedures for the activities undertaken and to report any problems with the activities that you cannot solve or are outside your responsibility to the relevant authority.  You will need to ensure that all the necessary documentation/visual representation is completed accurately and legibly.  You will also be expected to take full responsibility for your own actions within the activity and for the quality and accuracy of the work that you produce.

Your underpinning knowledge will provide a good understanding of multi variance charts and provide an informed approach to the techniques and procedures used.  You will need to understand the principles and application of multi variance charting in adequate depth to provide a sound basis for carrying out the activities to the required criteria.

Applying and advising on safe working practices will be a key issue throughout.


Performance criteria

You must be able to:

  1. work safely at all times, complying with health and safety and other relevant regulations, directives and guidelines
  2. approve the selection of a suitable activity on which to carry out the multi-variance charting process
  3. consult with the appropriate people and direct the gathering of the relevant data necessary for the multi-variance charting analysis
  4. lead the production of a data demographics form for the selected activity
  5. obtain and approve a multi-variance chart on the activity selected
  6. discuss and approve opportunities for improvement from the multi-variance chart
  7. lead the creation of an action plan that minimises variation and approve recommendations of how the improvements can be implemented
  8. implement and monitor the progress of the improvements in the action plan

Knowledge and Understanding

You need to know and understand:

  1. how to work safely at all times, complying with health and safety and other relevant regulations and guidelines
  2. how to plan the resources and time needed to carry out the agreed activity
  3. why we need to carry out multi variance charting and the benefits to be gained from this activity
  4. how to construct a data demographics form and a multi-variance chart
  5. how to assess the chart for within-piece variation, piece-to-piece variation and time-to-time variation
  6. how much data needs to be gathered to draw statistically valid conclusions from the chart
  7. how to draw further conclusion by utilising such tools as bar charts, box plots, histograms, stem and leaf diagrams, Pareto diagrams and time series charts
  8. the benefits of multi variance analysis with respect to design of experiment
  9. the extent of your own authority within the project and whom you should report to, in the event of problems that you cannot resolve

Scope/range


Scope Performance

1.    Lead the activities within your area of responsibility to include all of the following:

  1. set out and communicate the purpose of the improvement activities
  2. involve the team in planning how the improvement activity will be achieved
  3. ensure each team member has individual objectives and understands how these objectives contribute to the overall improvement objective
  4. provide advice and support the team to achieve both team and individual improvement objectives
  5. motivate the team to present their own improvement ideas
  6. encourage the team and/or individuals to take the lead where appropriate
  7. agree the implementation of the improvement ideas
  8. negotiate any physical and/or financial resources required to implement the improvement activity (where appropriate)
  9.  monitor the progress of improvement activities
  10. deal with any organisational problems identified during the  improvement activity

 

2.    Use the data demographics form to approve a multi-variance chart showing all of the following:

  1. within-part variation
  2. piece-to-piece variation
  3. time-to-time variation

 

3.    Lead the recording of the collected data utilising three of the following techniques:

    1. bar charts
    2. histograms
    3. Pareto diagrams
    4. stem and leaf diagrams
    5. box plots
    6. time series charts

 

4.    Lead the production of multi variance charts for two of the following:

    1. concept
    2. product
    3. design
    4. process
    5. system
    6. machine



Scope Knowledge


Values


Behaviours


Skills


Glossary


Links To Other NOS


External Links


Version Number

3

Indicative Review Date

2028

Validity

Current

Status

Original

Originating Organisation

Enginuity

Original URN

SEMBIT430

Relevant Occupations

Associate Professionals and Technical Occupations, Business and Finance Associate Professionals, Business Management, Business, Administration and Law

SOC Code

2127

Keywords

Engineering; business; improvement; techniques; multi variance charts; demographic form; histograms; time-time