Mobile telecommunications service providers outsource various activities like logistics, assembly operations, manufacturing and design. However, little research has been conducted in Southern Africa to establish the actual drivers triggering mobile telecommunication companies implement business process outsourcing (BPO) risks associated with implementation. This aims redress existing knowledge ...

A content provider may join or leave a federation at any time and may be part of more than one federation at the same time. Content providers may also cease as organizations altogether, freeing their domain names for use by others. In addition, content identifiers are spread throughout the members of a federation. These identifiers are stored on various media, sometimes for long durations befor...

Benford's Law is used to test for data irregularities. While novel, there are two weaknesses in the current methodology. First, test values used in practice are too conservative and the test values of this paper are more powerful and hold for fairly small samples. Second, testing requires Benford's Law to hold, which it often does not. I present a simple method to transform distributions to sat...

This paper presents our efforts in developing XMHF, an eXtensible and Modular Hypervisor Framework. XMHF takes a developer-centric approach to hypervisor design and implementation, and strives to be a comprehensible and flexible platform for performing hypervisor research and development. XMHF encapsulates common hypervisor core functionality in a framework that allows others to build custom hy...

GP (for Graph Programs) is a rule-based, nondeterministic programming language for solving graph problems at a high level of abstraction, freeing programmers from dealing with low-level data structures. In this case study, we present a graph program which minimizes finite automata. The program represents an automaton by its transition diagram, computes the state equivalence relation, and merges...

This paper gives an overview of a reminder system, based on digital television technology, which can present rich multi-media prompting messages in order to help maintain a regular daily schedule for people with mild to moderate dementia. The ongoing development of this application has the aim of supporting busy carers by making it easy to create, adapt and maintain a schedule of reminders to h...

The goal of data integration is to provide a uniform access to a set of heterogeneous data sources, freeing the user from the knowledge about where the data are, how they are stored, and how they can be accessed. The problem of designing effective data integration solutions has been addressed by several research and development projects in the last years. One of the outcomes of this research wo...

The purpose of this paper is to assess the extent to which the presence of positive externalities associated with public sector financial assistance to individual firms distorts standard methodologies designed to estimate the level of additionality. These positive externalities may include collaboration and international networking opportunities, information transfer, the freeing up of internal...

Wireless networks are founded on the principles of collision avoidance. This paper makes an attempt to detect and abort collisions in wireless networks. Briefly, the receiver uses physical layer information to detect collisions, and immediately notifies the transmitter to abort transmission. The collision notification consists of a unique signature, sent on the same frequency channel as the dat...