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MANETs (Mobile Ad-hoc NETworks) are an example of Peer-to-Peer (P2P) mobile networks in which security attacks, as black-hole ones, may cause serious dangers to the whole system. The watchdog is a well-known sensor usually adopted for detecting black-holes in such networks, but typical watchdogs are characterized by a relatively high number of false positive and negative cases, which can affect the effectiveness and efficiency to deal with intrusions.This paper proposes a novel approach for detecting black-hole attacks and selfish nodes in mobile P2P networks by using a watchdog sensor and a bayesian filtering. We demonstrate the validity of the approach through testing. [ABSTRACT FROM AUTHOR]

In complex emergency/disaster scenarios, teams from various emergency-response organizations collaborate in order to achieve a common goal. The use of smart mobile devices and applications in these scenarios can improve this collaboration dynamically; and poses interesting challenges, such as user΄ mental attention, small screen size, unavailability of reliable network, reduced power, and battery consumption. So, to design and develop interactive applications to be used in mobile and pervasive scenarios requires novel methodologies which combine user-centred design approaches and software engineering approaches tailed for distributed architectures. In this paper, we outline the methodology, adopted successfully in the European WORKPAD project, and describe the work done from getting the requirements to developing the interface of the desired system. [ABSTRACT FROM AUTHOR]

Process-aware information systems ranging from generic workflow systems to dedicated enterprise information systems use work lists to offer so-called work items to users. The work list handlers typically show a sorted list of work items comparable to the way that e-mails are presented in most e-mail programs. Since the work list handler is the dominant interface between the system and its users, it is worthwhile to provide a more advanced graphical interface that uses context information about work items and users. This paper uses the ˵map metaphor″ to visualise work items and resources (e.g., users) in a sophisticated manner. Moreover, based on ˵distance notions″ work items are visualised differently. For example, urgent work items of a type that suits the user are highlighted. The underlying map and distance notions may be of a geographical nature (e.g., a map of a city of office building), but may also be based on the process design, organisational structures, social networks, due dates, calenders, etc. The approach presented in this paper is supported by a visualisation framework implemented in the context of YAWL. The framework is set up in such a way that it can easily be combined with other workflow systems. [ABSTRACT FROM AUTHOR]

Nowadays, process management systems can be used not only in classical business scenarios, but also in highly mobile and dynamic situations, e.g., in supporting operators during emergency management in order to coordinate their activities. In such challenging situations, processes should be adapted, in order to cope with anomalous situations, including connection anomalies and task faults. In this paper, we present a general approach, based on execution monitoring, which is (i) practical, by relying on well-established planning techniques, and (ii) does not require the definition of the adaptation strategy in the process itself (as most of the current approaches do). We prove the correctness and completeness of the approach. [ABSTRACT FROM AUTHOR]

Nowadays, process-aware information systems (PAISs) are widely used for the management of ˵administrative″ processes characterized by clear andwell-defined structure. Besides such scenarios, PAISs can be used also in mobile and pervasive scenarios, such as in coordinating operators during emergency situations [1]. In these pervasive settings, due to highly mobility, operators have to be equippedwith small devices, such as PDAs, and to communicate through ad-hoc networks. [ABSTRACT FROM AUTHOR]