Context: Goal modeling is an important instrument for the elicitation, specification, analysis,
and validation of early requirements. Goal models capture hierarchical representations of …

As organisations expand and interconnect, authorisation infrastructures become
increasingly difficult to manage. Several solutions have been proposed, including self …

Distributed firewall systems emerged with the proposal of protecting individual hosts against
attacks originating from inside the network. In these systems, firewall rules are centrally …

Although major advances have been made in protection of cloud platforms against
malicious attacks, little has been done regarding the protection of these platforms against …

Security is concerned with the protection of assets from intentional harm. Secure systems
provide capabilities that enable such protection to satisfy some security requirements. In a …

Traditional approaches in access control rely on immutable criteria in which to decide and
award access. These approaches are limited, notably when handling changes in an …

Many of the existing management platforms such as pervasive computing systems
implement policies that depend on dynamic operational environment changes. Existing …

The digital world is expanding rapidly into all parts of the physical world and our
environment is shaped by the technologies we use. Majority of these technologies are user …

Software systems have an increasing impact on our daily lives. Many systems process
sensitive data or control critical infrastructure. Providing secure software is therefore …

Targeted and destructive nature of strategies used by attackers to break down the system
require mitigation approaches with dynamic awareness. Making a right decision, when …