Cloud computing comes into focus only when you think about what IT always needs: a way to increase capacity or add capabilities on the fly without investing in new infrastructure, training new personnel, or licensing new software. Cloud computing encompasses any subscriptionbased or pay per use service that, in real time over the internet, extends IT’s existing capabilities. In this article we ...

SCA (Service Component Architecture) is a collaborative effort by the leading vendors in the enterprise software space to define an architecture for building applications and systems using a ServiceOriented Architecture. SCA allows developers to define components that implement business logic, which offer their capabilities through services and consume functions offered by other components thro...

Small size, low cost electronic circuits embedded on a massively large scale into the quotidian world are likely to transform the way humans interact with their natural and social environments [Weiser02]. Such systems can offer unique capabilities, like autonomous response to new needs, identification of trends and correlations in data and events, reaction to unexpected conditions, and many mor...

In the context of the CoSeLoG project (which involves 10 Dutch municipalities), we realised a proof-of-concept implementation based on YAWL. The municipalities want to share a common IT infrastructure and learn from one another, but also allow for local differences. Therefore, we extended YAWL to run in a cloud-based environment leveraging on existing configuration possibilities. To support “YA...

For the last 10 years or so, asset managers and infrastructure owners have had to contend with ever-changing requirements for driving down operational expenditure, optimizing investments and improving workforce safety. To achieve these goals, asset-intensive organizations have enhanced their information management capabilities to enable significant changes, such as the move to reliability-cente...

Collaborative environments are virtual workplaces where agents can communicate, interact and collaborate. We introduce a model to compare different social structures and make a comparison between famous network structure and our goal infrastructure. Based on the differences, the main reasons to present our proposed model are described. Therefore we introduce an infrastructure to support optimiz...

Data centers have been evolved from a passive element of compute infrastructure to become an active, core part of any ICT solution. In particular, modular data centers (MDCs), which are a promising design approach to improve resiliency of data centers, can play a key role in deploying ICT infrastructure in remote and inhospitable environments in order to take advantage of low temperatures and h...

One of the major problems large metropolitan areas have been facing is traffic congestion (saturation of the transportation network infrastructure). The problem’s cause is well-known: as demand gets higher, the infrastructure (roads, rails and so on) is unable to fulfil it, because of its limited capacity. The alternative to the permanent enlarging of the infrastructure is to make use of more e...

Key to the future interoperability of Simulations with Command, Control, Communications, Computers and Intelligence (C4I) systems is the Defense Information Infrastructure Common Operating Environment (DII COE) Architecture. The DII COE is composed of configurable, layered, reusable software components that work together with specific C4I mission software to perform a task. All future DoD C4I s...

We report on the design and implementation of a system for collaborative constraint solving. The system takes advantage of the capabilities of Jini to implement the infrastructure required by such a system. We describe the conceptual model, its realization as a genuine Jini application, and illustrate it’s functionality.