would like to take this opportunity to thank all the people that supported me during this time personally and professionally. First of all, I would like thank Prof. Jochen Schiller who has been my primary adviser over the past three years. Without his support and inspiration as well as the confidence and freedom that he has given me to pursue my ideas, this work would never have been possible. ...

This paper identifies the foundations for an architectural description language (ADL) to specify multi-agent system architectures for information systems. We propose a set of system architectural concepts based on the BDI agent model and existing classical ADLs. We then conceptualize SKwyRL-ADL, aimed at capturing a “core” set of structural and behavioral concepts, including relationships that ...

The field of peer-to-peer reputation systems has exploded in the last few years. Our goal is to organize existing ideas and work to facilitate system design. We present a taxonomy of reputation system components, their properties, and discuss how user behavior and technical constraints can conflict. In our discussion, we describe research that exemplifies compromises made to deliver a useable, ...

As more and more applications with dynamic files are introduced in peer-to-peer (P2P) systems, file consistency maintenance becomes important. In this paper, we propose a novel file consistency maintenance algorithm, called Update P ropagation Through Replica Chain (UPTReC), for decentralized and unstructured peer-to-peer (P2P) systems. UPTReC provides a probabilistically guaranteed file consis...

Collaborative networked environments emerged with the spread of the internet, contributing to overcome past communication barriers, and identifying interoperability as an essential property. When achieved seamlessly, efficiency is increased in the entire product life cycle. Nowadays, most organizations try to attain interoperability by establishing peer-to-peer mappings with the different partn...

This paper describes a peer-to-peer system design and implementation assignment for a distributed systems course at an advanced undergraduate level, or a first-year graduate level. The assignment consists of four stages, and provides students a good, practical understanding of some of the key distributed computing concepts. These include issues of decentralization, managing distributed informat...

Peer-to-peer (p2p) systems are a fairly recent class of distributed systems. Early systems, such as Napster and SETI@Home, rely on a central server, while more recent systems like Gnutella and FastTrack are decentralized. One can also include “server peer-to-peer” systems, including USENET, MixMaster remailers and internet routing. As is common with new technologies, practice is significantly a...

We undertake a replication of research conducted in China, The Impact of Trust, Guanxi Orientation and Face on the Intention of Chinese Employees and Managers to Engage in Peer-To-Peer Tacit and Explicit Knowledge Sharing, originally published in Information Systems Journal. The study explores how aspects of Guanxi affect the intention to share knowledge. Guanxi is the Chinese phenomenon of a t...

The field of peer-to-peer reputation systems has exploded in the last few years. Our goal is to organize existing ideas and work to facilitate system design. We present a taxonomy of reputation system components, their properties, and discuss how user behavior and technical constraints can conflict. In our discussion, we describe research that exemplifies compromises made to deliver a useable, ...

Crises range from global catastrophes to personal disasters. However, systematic inquiry on crises rarely employs a comparative approach to examine commonalities between these seemingly very different events. We argue here that individual psychosocial disasters can inform a broader discussion on crises. Our approach applies general crisis theory to a smartphone based psychosocial support system...