0000000001026425
AUTHOR
Teijo Venäläinen
Towards Modelling Information Security with Key-Challenge Petri Nets
Our global information society is based on distributed wide-area networks. Network security consists of the provisions made in an underlying computer network infrastructure, policies adopted by the network administrator to protect the network-accessible resources from unauthorized access, as well as continuous monitoring and measurement of the network security's effectiveness. In this paper, we describe the use of Petri nets in modelling network security. We propose a new hierarchical method for modelling network attacks and evaluating effectiveness of the corresponding defences. Our model is called Key-Challenge Petri Net (KCPN).
Modelling contexts in cross-cultural communication environments
In our research, context is defined as a situation a user has at hand. The focus in our study is on modelling contexts in cross-cultural communication environments. These environments can be physical, virtual or hybrid. Crosscultural communication environment – user – situation is the key triplet in our context research. In our paper we discuss context as a key to situation-specific computing. We introduce our cross-cultural communication context tree and context flow architecture and an example of implementation i.e. Context-Based eAssistant for Cross-Cultural Communication (CeACCC). peerReviewed