Ontology authoring, maintenance and use are never easy tasks, mostly due to the complexity of real domains and how they dynamically change as well as different background possessed by modellers about methodologies and formal languages. However, although the needs for ontologies are well-understood, not less important is to provide editing tools to manipulate and understand them. In this context, this work proposes and documents a reference architecture for such tools running in web environments. Moreover, it provides the rationale for boosting the collaborative development of a novel tool based on this architecture, named crowd. Previous surveys reveal that few Web-based ontology engineering environments have been developed and in addition, almost all of them are mere visualisers, with limited graphical features and lacking inference services
Web-STAR: A Visual Web-based IDE for a Story Comprehension System