Purpose of the tool
Procedure
Settings
Interpretation guide
Forms of representation
Requirements
Tools
Examples
Terms
Formulas
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Voice of Process

  • Purpose of the tool

The Voice of the Process is used to systematically capture the voice of the process and translate it into measurable metrics.

It describes technical and non-technical factors that originate directly from the process and influence the outcome for the business or the customer.

The goal is to identify the causes of unsatisfactory results from the Voice of the Customer or Voice of the Business within the process responsible for them and to make these causes measurable.

  • Example: Material breakage and surface finish

Tensile strength (feedback from the process)
It has been observed during the process that the material frequently breaks off. This is quantified by measuring the material’s tensile strength.

  • Process feedback: “The material keeps tearing off.”
  • CPR: Current: 150 MPa; Target: > 180 MPa
  • Data type: Continuous

Roughness (Feedback from the process)
Complaints arise due to a surface that is too smooth. This is measured by the surface roughness.

  • Process feedback: “The surface is too smooth, which causes problems.”
  • CPR: Current: RA 5.3; Target: RA 7.5
  • Data type: Continuous

  • Procedure

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Preliminary work

  1. Examination of all process activities to identify potential causes of poor process output.
  2. Collection of process data, material information, or workplace observations
  3. Conversion of process observations into technical or organizational metrics with actual and target values

Use in AlphadiTab

  1. In the Define phase, select the “Voice of the Process” tool.

  2. Specify the number of rows and the desired data types.

  3. Generate the worksheet by clicking “Create Worksheet.”

  4. Enter the process observation and the derived technical metric (CPR).

Interpretation

  1. Are measures or projects required to achieve the target values?

  • Requirements

  • Access to the actual process, for example through on-site observation
  • Availability of suitable measuring equipment or process data
  • Understanding of which process factors can influence the output

  • Terms

Voice of the Process (VOP): A quantifiable representation of the process that describes its current state

Tensile strength: A mechanical property of a material that describes the load it can withstand

Roughness (RA): A parameter used to describe surface structure

Influencing factor: A variable in the process that can significantly influence the result