User interface improvements in distributed control systems with advanced process control : How to improve operators productivity
Palonki, Juuso (2026)
2026
Tietojenkäsittelyopin maisteriohjelma - Master's Programme in Computer Science
Informaatioteknologian ja viestinnän tiedekunta - Faculty of Information Technology and Communication Sciences
Hyväksymispäivämäärä
2026-06-12
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202604234207
https://urn.fi/URN:NBN:fi:tuni-202604234207
Tiivistelmä
The aim of this thesis is to design operator-friendly interfaces for Valmet Automation Oy’s process optimization product. The research focuses on identifying and reconciling the interface needs of pulp mill operators.
The theoretical framework covers user interface (UI) design principles and best practices, with an emphasis on human factors at workplace and the following ergonomics. It also introduces pulp mill processes and explains how it is managed using process control systems. From this technical background, the thesis transitions into a deeper exploration of user experience (UX) and interface design. Special attention is given to how human factors and ergonomic principles can enhance operator performance and well-being through thoughtful interface design. The theoretical section also outlines the ideal UI design process and how established guidelines can be applied in industrial contexts.
The empirical part of the thesis was conducted as an interview study involving a key user group across pulp mills Globally. Pulp mill operators who are the primary end users. Insights from the group were used to guide the design process.
Based on the theoretical findings and interview data, new user interface concepts were used for the Valmet DNA UI DCS - system. The design work was carried out in collaboration with project stakeholders. As an outcome, several interfaces for fiber line were created including washing, batch cooking, continuous cooking, oxygen stage, bleaching and steam/combustion manager. These were tailored for operators and the operator interface includes only the essential elements of the high-level control system to support decision-making and day-to-day operations.
The theoretical framework covers user interface (UI) design principles and best practices, with an emphasis on human factors at workplace and the following ergonomics. It also introduces pulp mill processes and explains how it is managed using process control systems. From this technical background, the thesis transitions into a deeper exploration of user experience (UX) and interface design. Special attention is given to how human factors and ergonomic principles can enhance operator performance and well-being through thoughtful interface design. The theoretical section also outlines the ideal UI design process and how established guidelines can be applied in industrial contexts.
The empirical part of the thesis was conducted as an interview study involving a key user group across pulp mills Globally. Pulp mill operators who are the primary end users. Insights from the group were used to guide the design process.
Based on the theoretical findings and interview data, new user interface concepts were used for the Valmet DNA UI DCS - system. The design work was carried out in collaboration with project stakeholders. As an outcome, several interfaces for fiber line were created including washing, batch cooking, continuous cooking, oxygen stage, bleaching and steam/combustion manager. These were tailored for operators and the operator interface includes only the essential elements of the high-level control system to support decision-making and day-to-day operations.