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Use case

A tool for quality

Descriptive analysis and in-depth exploration of quality and production data are used to understand industrial processes and machine control rules in order to optimize production and anticipate defects.


Railway sector


  • Control production quality by automated processing of machine data.
  • Improve the management of data generated during the manufacturing process.

The Solution:

  • A tool for creating control charts to define thresholds and alert channels.
  • Manual qualification of defects by a competent operator or manager and instant analysis of non-quality causes.

Benefits :

  • Quick consultation of the status of alerts and receipt of important notifications by email.
  • Quality indicators updated in real time.


Self-adhesive protective film production sector.


  • Objectivize the causes of non-quality and produce recommendations to significantly reduce rejects (>10% at the start of the study).

The Solution:

  • Analyze the process with the business and consolidate a large quantity of data from production machines and quality control.
  • Produce an exploratory analysis to study the correlations and dependencies between the data.
  • Identify all factors influencing quality and model their impact.
  • Synthesize the findings, consolidate the conclusions with the client and formulate recommendations through a quality improvement plan.
  • Evaluate the possibility of deploying an online quality prediction model.


  • By implementing our recommendations and reviewing the quality control accordingly, the reject rate was reduced by 50%. A result that led our client to call on us to further optimize its processes.


Carbon steel production sector - Galvanizing line.


  • Control and adjust in real time the critical parameters to avoid any quality degradation at the end of production.
  • Optimize production costs and maximize performance by avoiding end of line destructive tests and the downgrading of finished products.

The Solution:

  • A hybrid physical / Machine Learning model and a process parameter optimization loop that provides alerts on drifts and adjusts the operation if necessary:
    • Predict the mechanical properties of steel taking into account multiple influencing factors (>1000).
    • Ensure the repeatability of results for a new product, with poorly controlled physico-chemical properties, in a context of significant variability of raw material quality.

Benefits :

  • Improved accuracy in the evaluation of the main characteristics of the steel produced (*2 to *6 !!!) during production.