Australia’s combustible cladding crisis is estimated to cost approximately $6 billion remediate. No study has been published which determined the causative factors for magnitude of this issue. Investigators Federal Building Ministers’ Forum stated that building practitioners misinterpreted or ignored requirements National Construction Code. However, research by authors showed cause are likely d...

In Role-based Access control (RBAC) permissions are associated with roles and users are made members of roles thereby acquiring the associated permissions. User delegation in RBAC is the ability of one user (called the delegating user) who is a member of the delegated role to authorize another user (called the delegate user) to become a member of the delegated role. This paper proposes a simple...

The modern concept of separation powers was first introduced by Charles Louis de Secondat, Baron la Bréde et Montesquieu (1689-1755), in his well-known work L’Esprit des Loix (1748). Since then this has developed into a doctrine made up four basic principles, one which is the principle functions (the other three being: trias politica; personnel; and checks balances – see Van der Vyver “Separati...

This paper illustrates the design and implementation of a prototype ASP solver that is capable of exploiting the parallelism offered by general purpose graphical processing units (GPGPUs). The solver is based on a basic conflictdriven search algorithm. The core of the solving process develops on the CPU, while most of the activities, such as literal selection, unit propagation, and conflictanal...

Experience with a crudely delegated user interface to our internally developed configuration management system convinced us that delegated access to configuration systems was worth pursuing properly. This paper outlines our approach to authorising access both to individual aspects of configurations and to collections of configurations. We advocate the use of authorisation of some kind on config...