While cloud computing has become an increasingly hot topic in the industry, risks associated with the adoption of cloud services have also received growing attention from researchers and practitioners. This paper reports the results of a study that aimed to identify and explore potential risks that organisations may encounter when adopting cloud computing, as well as to assess and prioritise th...

With the increasing diversity in network applications and traffic types in the Internet, providing end-to-end QoS support to user traffic has been identified as one of the prime solution to provide deterministic service levels within the network. Due to the heterogeneity exhibited by the Internet, a route for a flow requiring QoS guarantees may not be available from source to destination compri...

An empirical study examined the impact of prototype fidelity on user behaviour, subjective user evaluation and emotion. The independent factors of prototype fidelity (paper prototype, computer prototype, fully operational appliance) and aesthetics of design (high vs. moderate) were varied in a between-subjects design. The 60 participants of the experiment were asked to complete two typical task...

Coordination deficiencies have been identified after the March 2011 earthquakes in Japan in terms of scheduling and allocation of resources, with time pressure, resource shortages, and especially informational uncertainty being main challenges. We address this issue of operational emergency response in natural disaster management (NDM) by suggesting a decision support model and a Monte Carlo he...

The main objective of this study was to examine how activity-based costing would be carried out by a standard Enterprise Resource Planning (ERP) system. According to Cooper and Kaplan the requirements for operational-control and ABC systems have fundamentally different purposes and a single, fully integrated approach cannot be adequate for both of these. Nevertheless, the purpose was to extend ...

In this paper, we bring together two important topics of current database research: enhancing the data model by refined relationship semantics and exploiting ORDBMS extensibility to equip the system with new functionality. Regarding the first topic, we introduce a framework to capture diverse semantic characteristics of application-specific relationships. Then, in order to integrate the concept...