Detailed requirements analysis plays a key role towards the design of successful Data Warehouse (DW) system. The requirements analysis specifications are used as the prime input for the construction of conceptual level multidimensional data model. This paper has proposed a Business Object based requirements analysis framework for DW system which is supported with abstraction mechanism and reuse...

We present a novel approach to a relational database machine for processing knowledge bases. This approach is based on functional programming concepts in order to manage processor resources and memory resources with the theoretical neatness of functional computation. By using demand-driven evaluation as a driving method of functional. computation, parallelism can be exploited in executing relat...

Virtualization technology facilitates a dynamic, demanddriven allocation and migration of servers. This paper studies how the flexibility offered by network virtualization can be used to improve Quality-of-Service parameters such as latency, while taking into account allocation costs. A generic use case is considered where both the overall demand issued for a certain service (for example, an SA...

Parallelising ray tracing using a data parallel approach allows arbitrarily large models to be rendered, but its inherent load imbalances may lead to severe inefficiencies. To compensate for the uneven load distribution, demanddriven tasks may be split off and scheduled to processors that are less busy. We use a hybrid scheduling algorithm which brings tasks and data together according to coher...

Algorithmic skeletons are predefined components for parallel programming. We will present a skeleton for branch & bound problems for MIMD machines with distributed memory. This skeleton is based on a distributed work pool. We discuss two variants, one with supply-driven work distribution and one with demanddriven work distribution. This approach is compared to a simple branch & bound skeleton w...

Background & aim: The practice of institutional delivery services utilization is reported to be very low in Ethiopian pastoral community. In this regard, health programmers should gain an insight into factors influencing the utilization of institutional delivery to improve health facility delivery among these women. Methods:<...

Recently, Proxy Mobile IPv6 (PMIPv6) has received much attention as a mobility management protocol in next-generation all-IP mobile networks. While the current research related to PMIPv6 mainly focuses on providing efficient handovers for unicast-based applications, there has been relatively little interest in supporting multicast services with PMIPv6. To provide support for multicast services ...

Service Oriented Computing (SOC) is a design paradigm that has evolved from earlier paradigms including object-orientation and component-based software engineering. Important features of services are compositionality, context-independence, encapsulation and re-usability. To support the formal design and analysis of SOC applications recently a number of Service Oriented Calculi have been propose...