This paper explores how accountability metrics are enacted in unfolding healthcare practices. We examine the socio-technical infrastructures that underpin and enable quantification of care, and how users of quantified data not only react to quantitative practices and underlying infrastructures, but also actively give shape to them through practices of gamification. In the paper, we elucidate th...

the infrastructures used for knowledge management in universities are important. nowadays, higher education institutions must be innovative and have appropriate capacity to change as well as adapting with constantly changing external conditions. therefore, the aim of the present study is to assess the relationship between infrastructures and organizational change capacity (occ) and study their ...

The smart water infrastructures laboratory is a research facility at Aalborg University, Denmark. enables experimental in control and management of realistic environment. designed as modular system that can be configured to adapt the test-bed desired network. recreated this are district heating, drinking supply, waste collection systems. This paper focuses on first two types infrastructure. In ...

Context-aware systems use sensors in order to analyse their environment and to adapt their behaviour. We have designed and developed Sens-ation, an open and generic service-oriented platform, which provides powerful, yet easy-to-use, tools to software developers who want to develop context-aware, sensor-based infrastructures. The service-oriented paradigm of Sens-ation enables standardised comm...

Data infrastructures represent information about physical reality. As reality changes, data infrastructures might also be subject to change. Researchers have increasingly approached physical infrastructures as being complex adaptive systems (CAS). Although physical infrastructures are often approached as CAS, the underlying data infrastructures hardly are. Studying data infrastructures as CAS h...

In discrete logarithm based cryptography, a method by Pohlig and Hellman allows solving the discrete logarithm problem efficiently if the group order is known and has no large prime factors. The consequence is that such groups are avoided. In the past, there have been proposals for cryptography based on cyclic infrastructures. We will show that the Pohlig-Hellman method can be adapted to certai...

Institutional and technological changes concerning networked infrastructures, and increasing interdependency between these infrastructures necessitate a different view on their design and management. Responsibilities are no longer in one hand as they often used to be, and failures in systems may impact larger parts of the infrastructures, leading to serious service disruptions. This paper descr...

The infrastructures used in cities to supply power, water and gas are consistently becoming more automated. As society depends critically on these cyber-physical infrastructures, their survivability assessment deserves more attention. In this overview, we first touch upon a taxonomy on survivability of cyber-physical infrastructures, before we focus on three classes of infrastructures (gas, wat...

Coordination infrastructures play a central role in the engineering of multiagent systems. Since the advent of agent technology, research on coordination infrastructures has produced a significant number of infrastructures with varying features. In this paper, we review the the state of the art coordination infrastructures with the purpose of identifying open research challenges that next gener...