Publications

Digital services - applications that often span the entire computing continuum - have become an essential part of our daily lives, but they can have a significant energy cost, raising sustainability concerns. The computing continuum features multiple distributed layers (edge, fog, and cloud) with specific computing infrastructure and scheduling decisions at each layer, which impact the overall quality of service and energy consumption of digital services.

The complexity of delivering business value is increasing technically and socially. The increasing complexity triggers the need for an increase in systems competence in several roles within the technical domain. One of the core disciplines to focus on this competence is systems engineering, which gets increasing attention within the Dutch ecosystem to enhance individuals and organizations further in this competence.

In this report, we have described a domain model for the timing behaviour of production systems consisting of multiple connected units. The domain model consists of four domain-specific languages: The Material language specifies the materials to be handled by a production system and the operations that can be performed on these materials.

Synthesis-based engineering (SBE) provides assistance needed to manage the complexity of guaranteeing safe control, by combining model-based engineering with computer-aided design. It builds on the synthesis procedure computing a correctby-construction controller from models of the to-be-controlled system and associated requirements.

Preference for noise reduction (NR) strength differs between individuals. The purpose of this study was (1) to investigate whether hearing loss influences this preference, (2) to find the number of distinct settings required to classify participants in similar groups based on their preference for NR strength, and (3) to estimate the number of paired comparisons needed to predict to which preference group a participant belongs.

Designing and maintaining robust interfaces for software components of component-based systems is a challenging task. To address this issue, TNO-ESI and Philips have employed model-driven engineering techniques by creating ComMA (Component Modelling and Analysis Suite), a framework that has been successfully used in the industry.

The diagnosis of complex systems benefits greatly from a differential, multistep approach that narrows down the list of possible conditions or failures that share the same observable effects to a single root cause. We provide a suitable and practically applicable methodology for this. In extension to existing work, it covers all types of diagnostic actions, i.

The target of the Vraaggestuurde Programma (VP) ESI is to drive advances in high-tech systems development by embedding cutting-edge engineering methodologies in the Dutch high-tech systems industry to cope with the ever-increasing complexity of their products: (i) creating impactful and industrially applicable methodologies and (ii) providing support to the high-tech industry to apply the results.