A new bookkeeping system called Jiskefet is being developed for A Large Ion Collider Experiment (ALICE) during Long Shutdown 2, to be in production until the end of LHC Run 4 (2029). Jiskefet unifies two function- alities: a) gathering, storing and presenting metadata associated with the oper- ations …

Conference poster Digitally controlled systems, such as elevators, washing machines, and traffic lights, are ubiquitous in children's present-day world. However, in current educational practice, such systems are hardly being addressed, and little is known about children's initial understandings about …

In the operational systems of the Dutch Public Prosecution Service, data about criminal cases are registered. This information is used to generate crime statistics or other management information as input for policymaking. A key element for these statistics is the crime type of a case, which is normally …

Emotion has been investigated from various perspectives and across several domains within human-computer interaction (HCI) including intelligent tutoring systems, interactive web applications, social media, and human-robot interaction. One of the most promising and, nevertheless, challenging applications …

This paper describes Ivy, an office chair that represents sitting time of an office worker through growing ivy strands. The longer one sits, the more strands will grow onto the chair. By means of a qualitative interface called Ivy, we illustrate a design approach that is currently underrepresented in …

The Office Jungle is an experimental office environment designed to make offices more "wild". Through this demonstration and associated design vision, we make a first attempt to reflect on and to define what characterizes wildness and how it could empower people in more playful and active lifestyles, …

In light of increasing cashlessness, platform economies, Open Banking APIs, financial bots and cryptocurrencies, money is on the move - once inert, money is gaining agency, becoming programmable, automated, data-driven and part of 'more than human' infrastructures. These financial futures demand that …

Walking meetings are a promising means to improve healthy behavior at work. By providing a physically active way of working, walking meetings can reduce our sitting time. Several obstacles that limit the social acceptance and wider adoption of walking meeting practice have been highlighted in previous …

In this paper, we present and discuss Ivy, a critical artifact offering a novel design perspective on interventions that aim to reduce sedentary behavior in office workers. Ivy is an interactive office chair that represents the amount of sitting time through growing ivy strands. Using the matrix of common …

Ben van Lier on Blockchain: Collected blogs 2016-2020