ZEISS PiWeb Inline Correlation Module

Implemented for ZEISS Industrial Quality Solutions

28 February 2022
ZEISS PiWeb Inline Correlation Module
ZEISS PiWeb Inline Correlation Module

Development of an application to determine systematic deviations in inline measurements during quality assurance in automotive production.

The Inline Correlation Module was developed as an application to identify systematic deviations of quality data in automotive manufacturing. The application enables the correction of the measuring systems directly in production without having to stop production.

ZEISS Digital Innovation tasks

The ZEISS Digital Innovation Team was responsible for implementing the Inline Correlation Module as part of ZEISS PiWeb.

Based on a technical concept developed by the customer, ZEISS Digital Innovation first implemented an operating concept for the application. The complex mathematical relationships should be presented as simply as possible for the user.

In close coordination with the ZEISS Industrial Quality Solutions developers, a software architecture was therefore designed and implemented that fits seamlessly into the existing ZEISS PiWeb modules. Continuous integration and continuous inspection were used to ensure high quality from the very beginning.

Our Services

  • Architecture design and implementation
  • Development of the UI control concept
  • Quality assurance and documentation
Schematic overview of inline and offline measurements
Schematic overview of inline and offline measurements

Project description

As part of ZEISS PiWeb, the Inline Correlation Module supports automotive manufacturing in determining systematic deviations that occur during quality assurance in production (inline measurements).

For this purpose, the application determines and compares the quantitatively predominant, but qualitatively inferior inline measurements with the few existing, but qualitatively superior offline measurements, which were created under more optimal conditions outside the production line.

A comparison of the inline and offline data then provides any discrepancies. The inline measuring systems can then be recalibrated during ongoing production.

Thanks to ZEISS Digital Innovation, it was possible to implement the new ‘Inline Correlation’ theme to a high quality and integrate it into the ZEISS PiWeb product family in a short time. The team’s extensive experience in software design and excellent UI skills greatly enriched the project. The collaboration was very positive. For us, ZEISS Digital Innovation remains the first choice when it comes to finding a reliable and strong partner in the software industry.

Daniel Flemming

Head of Software Engineering ZEISS PiWeb


During the development and implementation of the PiWeb Inline Correlation Module, the challenge was to efficiently process the hundreds of thousands of inline measurements that occur daily, while at the same time guaranteeing the performance of the system. For this purpose, the necessary technical-mathematical calculations also had to be transferred to the new application.

Last but not least, the abstracted representation of measurements and deviations for the users was an important part of the design of the user interface. The aim was to enable the calibration of the machines during ongoing production without in-depth technical and expert knowledge.

Technical environment

.NET Core, MS SQL Server, SQLite, SQL Server LocalDB, HTTP REST/ SOAP, TeamCity, Jira, Git, Visual Studio, Jetbrains Rider, and NUnit

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