Borislav Iordanov

A Citizen Relationship Management (OpenCiRM) system was built on a semantic web platform using model-driven development principles, to provide a government call center with operational agility and improved technical integration options. Business domain experts from municipal agencies administered the system by directly manipulating its ontology model. This paper highlights the new ontology engineering tasks and user roles that may emerge in organizations implementing the OpenCiRM system.

An essay about why, when and how local governments should put on a software development hat.

The choice of a modeling language in software engineering is traditionally restricted to the tools and meta-models invented specifically for that purpose. On the other hand, semantic web standards are intended mainly for modeling data, to be consumed or produced by software. However, both spaces share enough commonality to warrant an attempt at a unified solution. In this paper, we describe our experience using Web Ontology Language (OWL) as the language for Model-Driven Development (MDD). We… Show more

The choice of a modeling language in software engineering is traditionally restricted to the tools and meta-models invented specifically for that purpose. On the other hand, semantic web standards are intended mainly for modeling data, to be consumed or produced by software. However, both spaces share enough commonality to warrant an attempt at a unified solution. In this paper, we describe our experience using Web Ontology Language (OWL) as the language for Model-Driven Development (MDD). We argue that there are benefits of using OWL to formally describe both data and software within an integrated modeling approach by showcasing an e-Government platform that we have built for citizen relationship management. We describe the platform architecture, development process and model enactment. In addition, we explain some of the limitations of OWL as an MDD formalism as well as the shortcomings of current tools and suggest practical ways to overcome them. Show less

Tutorial serials about domain modeling with the Description Logic and the Ontology Web Language in particular.

Tutorial serials about domain modeling with the Description Logic and the Ontology Web Language in particular.

The high complexity of modern software systems, described more than twenty years ago in the well-know paper by Fred Brooks [Brooks 1986] has become proverbial amongst practitioners. While the software engineering community has accepted and learned to cope, albeit in a limited way, with what Brooks termed essential difficulties, i.e. intractable obstacles due to the nature of software itself, there is a consensus that the ultra large-scale systems of the future call for a fundamental change in… Show more

The high complexity of modern software systems, described more than twenty years ago in the well-know paper by Fred Brooks [Brooks 1986] has become proverbial amongst practitioners. While the software engineering community has accepted and learned to cope, albeit in a limited way, with what Brooks termed essential difficulties, i.e. intractable obstacles due to the nature of software itself, there is a consensus that the ultra large-scale systems of the future call for a fundamental change in our understanding and practice of software construction. Show less

We present HyperGraphDB, a novel graph database based on generalized hypergraphs where hyperedges can contain other hyperedges. This generalization automatically reifies every entity expressed in the database thus removing many of the usual difficulties in dealing with higher-order relationships. An open two-layered architecture of the data organization yields a highly customizable system where specific domain representations can be optimized while remaining within a uniform conceptual… Show more

We present HyperGraphDB, a novel graph database based on generalized hypergraphs where hyperedges can contain other hyperedges. This generalization automatically reifies every entity expressed in the database thus removing many of the usual difficulties in dealing with higher-order relationships. An open two-layered architecture of the data organization yields a highly customizable system where specific domain representations can be optimized while remaining within a uniform conceptual framework. HyperGraphDB is an embedded, transactional database designed as a universal data model for highly complex, large scale knowledge representation applications such as found in artificial intelligence, bioinformatics and natural language processing. Show less