Evolutionary process engineering describes the development of business processes over time with the objective of increasing quality and performance, in order to meet – among other things – accreditation requirements. Maturity models like the business process maturity model support quality management and are perceived as convenient measurement for this evolution. In this paper, the authors ...

The traditional multiplayer video game architecture requires costly investment in physical game servers and network infrastructure. The peer-to-peer network model alleviates some of these concerns, but makes cheat prevention, software updates, and system monitoring far more difficult for the game publisher. Recent advancements in Infrastructure as a Service (IaaS) cloud platform providers such as Amazon ...

SuperSQL is an extension of SQL that allows formatting and publishing of database contents into various kinds of application data directly as a result of a query. Possible application data output formats include, but are not limited to, HTML, PDF, XML, XLS, and Ajax-driven pages. Originally, the SuperSQL query is directly converted into a single ...

The BonFIRE project has developed a federated cloud that supports experimentation and testing of innovative scenarios from the Internet of Services research community. Virtual Clusters On federated Cloud sites (VCOC) is one of the supported experiments of the BonFIRE Project whose main objective is to evaluate the feasibility of using multiple Cloud environments to deploy ...

The repeated execution of workflow logic is usually modeled with loop constructs in the workflow model. But there are cases where it is not known at design time that a subset of activities has to be rerun during workflow execution. For instance in e-Science, scientists might have to spontaneously repeat a part of an experiment ...

The purpose of this paper is to give an introduction into the new standard base of Next-Generation Passive Optical Network (NG-PON). Study and analysis of future trends in the development of next-generation fixed broadband optical network is performed. The main intention of this paper is to describe migration from Gigabit-capable Passive Optical Network (GPON) to ...

As the World Wide Web is becoming a communication and collaboration platform, there is an acute need for an infrastructure to disseminate real-time events over the Web. However, such infrastructure is still seriously lacking as conventional distributed event-based systems are not designed for the Web. To address this issue, the authors describe a REST web ...

In certain models of inter-provider Multi-Protocol Label Switching (MPLS) based Virtual Private Networks (VPNs) spoofing attack against VPN sites is a key concern. For example, MPLS-based VPN inter-provider model “C” is not favoured, owing to security concerns in the dataplane, even though it can scale with respect to maintenance of routing state. Since, the inner ...

Although mobile devices include accessibility features available for visually impaired users, the user interface of the majority of the mobile apps is designed for sighted people. It is clear that “Design for Usability” differs depending if the final user is a sighted user or a visually impaired user. This paper introduces the concept of “Low ...

This paper presents the results of a descriptive case study concerning adoption of iPad or other tablets as assistive technology. Two pilot studies concerning the adoption and use of the iPad for active reading in a teaching/learning situation have recently been conducted at elementary school level and at university level. In the course of both ...