Ontologies are key enablers for sharing precise and machine-understandable semantics among different applications and parties. Yet, for ontologies to meet these expectations, their quality must be of a good standard. The quality of an ontology is strongly based on the design method employed. This paper addresses the design problems related to the modelling of ontologies, with specific concentra...

in the first impounding of rockfill dams, additional settlements occur in upstream side in saturated rockfills due to collapse phenomenon even high rainy seasons can cause additional deformation in the dumped rockfills. unfortunately these displacements are not taken into account in the conventional numerical models which are currently used to predict embankment dam behavior during impounding. ...

This paper presents an extension of role-based access control model with the use of usage control concept together with its representation using the Unified Modeling Language (UML). The presented model is developed for role engineering in the security of information system. The presented implementation of URBAC (Usage Role-Based Access Control) model consists in creation of security profiles fo...

This paper focuses on the potential role of the Object-Role Modeling (ORM) approach to information modeling for the task of domain modeling. Domain modeling concerns obtaining and modeling the language (concepts, terminologies, ontologies) used by stakeholders to talk about a domain. Achieving conceptual clarity and consensus among stakeholders is an important yet often neglected part of system...

In this paper, we present a procedure Grounded System Dynamics (GSD) which we use as a guide to underpin a System Dynamics (SD) model with a domain modeling method called Object-Role Modeling (ORM). GSD is a combination of two existing methods (SD with ORM). By combining these two methods we generate synergy effects by using already existing modeling methods and by so doing we overcome some of ...

Abstract: Situations can arise in which organizations have to merge policies that are based on different access control frameworks, such as Role Based Access Control (RBAC) and Mandatory Access Control (MAC). Integrating policies requires addressing the following question: How will the integration impact access to protected resources? In particular, one needs to determine that the integration d...

The Object Role Modeling language (ORM2) is one of the main conceptual modeling languages. Recently, a translation has been proposed of a main fragment of ORM2 (ORM2) into the description logic ALCQI, allowing the use of logical instruments in the analysis of ORM schemas. On the other hand, in many ontological domains there is a need for the formalization of defeasible information and of nonmon...