Non Uniform Rational B-splines (NURBs) are proved to be very promising for metamodeling in engineering problems, because they have unique properties such as local modification scheme, strong convex hull property, and infinitely differentiability, etc. Since NURBs are defined by control points, knot vector, and weights associated with control points, the precision of NURBs is influenced by all o...

Many different methodologies for the development of Web applications were proposed in the last ten years. Although most of them define their own notation for building models such as the navigation, the presentation or the personalization model, we argue that in many cases it is just another notation for the same concepts, i.e. they should be based on a common metamodel for the Web application d...

Metamodel evolution and model co-evolution are considered to be essential ingredients for the successful adoption of model-driven engineering in practice. In this respect, on the one hand, dedicated coevolution languages have been proposed for migrating models conforming to an initial metamodel to models conforming to a revised metamodel with the drawback of requiring to learn a new language. O...

This paper shows the construction of an organizational memory metamodel focused on R&D centers. The metamodel uses lessons learned extracted from corporative social networks; the metamodel aims to promote learning and management of organizational knowledge at these types of organizations. The analysis is applied initially from lessons learned on topics of R&D in Spanish language. The metamodel ...

This paper describes the gradual formation of the metamodel of the REA model level of the REA enterprise ontology. The paper aims to create a basic structure that allows creating valid models of the ontology. The first part of the paper discusses the identification of the elements used as a basis for the metamodel and their relationships. The second part describes the creation of the metamodel ...

Disaster management (DM) is a challenging domain to model because of the variety of dynamic characteristics attached to the domain. Metamodeling is a model-driven approach that describes how semantic domain models can be built into an artifact called a Metamodel. By collecting all the domain concepts and partitioning the domain problems into sub-domain-problems, a metamodel can produce a domain...

This paper presents a generic model driven approach to enable Quality of Service (QoS) modeling and realization for component based middleware platforms. We describe a QoS metamodel that makes it possible to support multi category QoS instead of introducing a static set of QoS properties into the modeling method. The metamodel is integrated with the UML metamodel and the Component Implementatio...

We present a general approach to the incremental development of model-based applications using endogenous transformations, i.e. transformations whose input and output models conform to the same metamodel. Our work describes these transformations as model deltas that, when composed, deliver a complete model. We establish a relationship between a metamodel and its corresponding delta metamodel, s...

This paper presents a metamodel formalizing collaboration of heterogeneous entities (organizations, agencies, companies, intelligent agents...). Initially developed to support crisis management, this metamodel has been extended to any objective driven work of collaborative networks (CN). This formalism embeds all concepts (and inter-relations between them) required to represent any collaborativ...