Real-world applications have to deal with issues related to security, as well as errors and crosscutting concerns. Different trace-based mechanisms with distinctive features have been proposed to solve these particular issues. For example, PQL matches sequence of unordered events, and tracematches match traces expressed with regular expressions. Despite that applications present these issues at...

Conservative estimates in the United States predict that the number of persons aged 65 years and over will grow from 35 million in 2000 to 78 million in 2011, accounting for more than 20% of the overall population. 1 The number of those aged 85 years and over will grow from 4 million to 18.2 million. If life expectancy continues to increase at the same rate seen in the 1990s, the number of olde...

Condensed Graphs provide a graph based programming model that unifies availability-driven, coerciondriven and control-driven computing. In this paper we explore the issues of concurrency and synchronisation between condensed graph applications. A paradigm for condensed graph synchronisation is proposed and an architectural pattern is developed that forms the basis of a novel synchronisation mec...

While it is well-known that crosscutting concerns occur in many software projects, little is known on how aspect-oriented programming, and in particular AspectJ, have been used. In this paper, we analyze eleven AspectJ programs by different authors to answer the questions: which mechanisms are used, to what extent, and for what purpose. We found the code of these programs to be on average 86% o...

A number of approaches have been proposed to provide support for crosscutting concerns at the design level. This paper compares some of these design approaches. A set of “good design” criteria is used to identify strengths and weaknesses of the individual approaches. The paper concludes with a proposition to unify the strengths of the discussed approaches into a more effective model.

Automatic discovery of process models from event logs is an important and promising area in Business Process Management. Process models document how business processes should be performed, so they capture different concerns related to business processes. Some of these concerns are not limited to one process model, and they are repeated in many others as well, called cross-cutting concerns. Alth...