Halilaj, Lavdim: An Approach for Collaborative Ontology Development in Distributed and Heterogeneous Environments. - Bonn, 2019. - Dissertation, Rheinische Friedrich-Wilhelms-Universität Bonn.
Online-Ausgabe in bonndoc: https://nbn-resolving.org/urn:nbn:de:hbz:5n-53150
urn: https://nbn-resolving.org/urn:nbn:de:hbz:5n-53150,
author = {{Lavdim Halilaj}},
title = {An Approach for Collaborative Ontology Development in Distributed and Heterogeneous Environments},
school = {Rheinische Friedrich-Wilhelms-Universität Bonn},
year = 2019,
month = jan,

note = {The era of digitalization poses high demands on capturing and processing knowledge generated in everyday life in formal models. Ontologies provide common means for formal knowledge capturing and modeling for a universe of discourse. Developing ontologies, however, can be a complex, time-consuming and expensive process which requires a significant amount of resource investments. Different stakeholders, such as ontology engineers, domain experts and ultimately users, are usually involved in the development process; they may be geographically distributed and work independently in isolated environments while typically have to synchronize their contributions. Supporting the entire development life-cycle of ontology modeling places a number of challenges. Stakeholders may have different working behaviors and practices that should be accommodated. Concurrent ontology modifications performed using various authoring editors have to be tracked, integrated and may result in synchronization conflicts. Further, ensuring ontology quality according to the domain requirements is another challenge to be tackled. In the past years, several methodologies and tools have been created to enable ontology development for a number of different purposes and applications. Albeit designed to cover a range of development aspects, existing approaches lack comprehensive support of the ontology life-cycle, in particular independent work in disparate environments.
In this thesis, we tackle the problem of collaborative ontology development in distributed and heterogeneous environments, and present a stakeholder-oriented approach able to holistically assist the development of ontologies in diverse and independent scenarios. First, we define Git4Voc, a lightweight methodology comprising a set of guidelines and practices to be followed by stakeholders while modeling ontologies. We then conceive VoCol, a flexible and integrated development platform to address critical requirements from a technical perspective. Moreover, techniques for reducing the number of conflicts and allowing the efficient evaluation of test cases have been designed and implemented. VoCol can be adopted in numerous scenarios and accommodate additional tools in a well-designed and semi-automatic ontology development workflow. The benefits of this flexibility are two-fold: 1) stakeholders do not need to strictly follow a specific methodology; in contrary, they can organize their work in small and incremental development steps; and 2) consumers may provide their feedback, even though they are not directly part of the active development team. VoCol can be utilized to efficiently ensure quality ontologies with respect to the pre-defined requirements. We conducted several empirical evaluations to assess the effectiveness and efficiency of our holistic approach. More importantly, ontologies for various domains, such as Industry 4.0, life sciences and education, have been successfully developed and managed following our approach. The results from the empirical evaluations and concrete applications provide evidence that the methodology and techniques presented in this thesis comply with stakeholders' needs and effectively support the entire ontology development life-cycle in distributed and heterogeneous environments.},

url = {http://hdl.handle.net/20.500.11811/7840}

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