On the User Perception of Configurable Reference Process Models - Initial Insights

Enterprise Systems potentially lead to significant efficiency gains but require a well-conducted configuration process. A configurable reference modelling language based on the widely used EPC notation, which can be used to specify Configurable EPCs (C-EPCs), has been developed to support the task of Enterprise Systems configuration. This paper presents a laboratory experiment on C-EPCs and discusses empirical data on the comparison of C-EPCs to regular EPCs. Using the Method Adoption Model we report on modeller’s perceptions as to the usefulness and ease of use of C-EPCs, concluding that C-EPCs provide sufficient yet improvable conceptual support towards reference model configuration

An application of social network analysis to knowledge building

Paper presented at the structured poster symposium of AERA Annual Meeting 2003Theme: Probing individual, social, and cultural aspects of knowledge buildingThis paper is a design study that explores the use of server log data to guide knowledge building. We use the Analytic Toolkit for Knowledge Forum™ (KF) and techniques from social network analysis to analyze participation and interactivity in two KF databases. In doing so, we connect individual measures on the use of KF features with measures that probe collaboration at a more systemic level. In this, we are attempting to move from a view of assessment that in our view is overly individual (Chan & van Aalst, in press). The first case study is drawn from a grade 4 class studying electricity and First Nations issues; the second study is drawn from a grade 9 class preparing for the International Baccalaureate Program. In each case, the results uncover useful information about participation and interactivity. In the first study, there were correlations between the use of KF features and the social network variables that deteriorated over time; there also was a lack of reciprocity in the interactions. The students in the second study used the features of KF more extensively, which was accompanied by more reciprocity. In that study there were no significant relationships between the use of KF features and the social network variables. We emphasize not the findings of the studies themselves, but argue that analyses like these be used to inform a class’s ongoing efforts to improve its knowledge building discourse.postprin

When Are Two Workflows the Same?

In the area of workflow management, one is confronted with a large number of competing languages and the relations between them (e.g. relative expressiveness) are usually not clear. Moreover, even within the same language it is generally possible to express the same workflow in different ways, a feature known as variability. This paper aims at providing some of the formal groundwork for studying relative expressiveness and variability by defining notions of equivalence capturing different views on how workflow systems operate. Firstly, a notion of observational equivalence in the absence of silent steps is defined and related to classical bisimulation. Secondly, a number of equivalence notions in the presence of silent steps are defined. A distinction is made between the case where silent steps are visible (but not controllable) by the environment and the case where silent steps are not visible, i.e., there is an alternation between system events and environment interactions. It is shown that these notions of equivalence are different and do not coincide with classical notions of bisimulation with silent steps (e.g. weak and branching)

Examining online discourse using the knowledge connection analyzer framework and collaborative tools in knowledge building

This study examines the problem of the fragmentation of asynchronous online discourse by using the Knowledge Connection Analyzer (KCA) framework and tools and explores how students could use the KCA data in classroom reflections to deepen their knowledge building (KB) inquiry. We applied the KCA to nine Knowledge Forum® (KF) databases to examine the framework, identify issues with online discourse that may inform further development, and provide data on how the tools work. Our comparisons of the KCA data showed that the databases with more sophisticated teacher–researcher co-design had higher KCA indices than those with regular KF use, validating the framework. Analysis of KF discourse using the KCA helped identify several issues including limited collaboration among peers, underdeveloped practices of synthesizing and rising above of collective ideas, less analysis of conceptual development of discussion threads, and limited collaborative reflection on individual contribution and promising inquiry direction. These issues that open opportunities for further development cannot be identified by other present analytics tools. The exploratory use of the KCA in real classroom revealed that the KCA can support students’ productive reflective assessment and KB. This study discusses the implications for examining and scaffolding online discussions using the KCA assessment framework, with a focus on collective perspectives regarding community knowledge, synthesis, idea improvement, and contribution to community understanding

Overstromingen in Malawi en Mozambique

In mid-January, Malawi and Mozambique were hit by heavy rainfall that caused major impact with hundreds dead and more than three hundred thousand displaced. A major international aid operation was set up by the United Nations and the International Red Cross to help the most affected. The question arises again and again how rare this extreme rainfall is and whether this is (partly) caused by climate change. We are working with an international group, including KNMI and the Red Cross Red Crescent Climate Center, to set up a system that can answer these kinds of questions. We will use the parts that have already been completed here to provide a partial answer to the above question and to provide insight into problems that we encounter in practice. (translated