Six Sigma#DMAIC

DMAIC ( Define - Measure - Analysis - Improve - Control - spoken language: di - meɪk ) represents the phases of a process management process. DMAIC is the core process of the quality management approach and Six Sigma is used to design processes that keep them stable a given six sigma level of performance. DMAIC is used for the improvement of existing products. For new products, there are DMADV for new processes DMAEC (E = Engineering ).

Definition

Defines is who the customer (customer be here very broadly defined ) of the process and are intended to satisfy the process which needs of these customers. The features of the process are defined Based on this, which are critical to meeting customer expectations.

Data collection

In the data collection phase methods and tools for collecting data on the current manifestation of the features to be found. By means of these instruments are recorded data on the functionality of the process.

After completion of the phase front are:

  • Data collection plan
  • Data entry sheet
  • Quality control charts
  • Frequency diagram (histograms )
  • Measurement System Analysis (R & R rating; Gauge R &R; Measurement System Analysis )
  • Pareto
  • Priority matrix
  • FMEA
  • Process capability ( Cp, Cpk )
  • Process Sigma ( characteristic process control )
  • Sampling
  • Backup
  • Running time diagrams

Analysis

The aim of the analysis phase is to identify the causes of the deviation from the defined performance targets. The outcome of this phase leads u.U. cause changes in the problem description or the entire project framework must be made.

The tools in the analysis phase most commonly used are:

  • Affinity diagram
  • Brainstorming
  • Cause-and- effect diagram
  • Control charts
  • Data collection form / error log sheet
  • Statistical design of experiments ( DoE: Design of Experiments )
  • Flow chart
  • Frequency diagram
  • Hypothesis Tests
  • Pareto
  • Regression analysis
  • Response Surface Methodology ( RSM)
  • Sampling
  • Scatterplot

Improvement phase

In the improvement phase solutions for the identified and selected in the analysis phase problems are to be found. There are several solutions, criteria must be established, after which the solutions are evaluated.

The tools used in the improvement phase are most common:

  • Brainstorming
  • Consensus
  • Creativity techniques
  • Statistical design of experiments ( DoE: Design of Experiments )
  • Flowcharts
  • FMEA

Control phase

Finally, the found improvements and new methods in everyday use must be anchored. The important thing here is to pass the responsibility for the process to the process owner or returned. The process is continuously monitored in the course with the developed measuring systems. For expected deviations from the process corrective measures shall be established.

In this phase, the following tools are used:

  • Control charts
  • Data collection
  • Flow chart
  • Frequency diagrams
  • Pareto
  • QM process diagram
  • Standardization

Reference

The DMAIC summarizes known procedures and methods together into a systematic approach. Similar approaches have been around a long time, probably the oldest of the Grochla (see also the process model ). However, the DMAIC has the advantage that the tools of the individual phases are interrelated and the project work is thus chronologically structured and systematized.

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