In the context of sustainable development of insular tropical islands, and more specifically for sustainable education in the South West of Indian Ocean, data and knowledge management of specialists of natural or cultural diversity is at the heart of designing new ICT services. For example, the objectives of these e-services are to manage biodiversity and musical information on the Web, in order to preserve insular tropical islands common heritage. But the method of building data and knowledge bases is moving towards more Open, Inclusive and Smart approaches for a new 2020 Horizon. Open was initially inspired by EU (INSPIRE directive) and is characterized by opening public databases, for them to be enhanced by companies in new useful e-services for citizens. As such, Web Services are used for mutual inter-operability of databases. Inclusive is related to the different types of people that can participate to data and knowledge creation, i.e. experts, managers, stake- holders, amateurs who wish to involve themselves in useful e-services for the benefit of the community. Social Web is thus a means to connect people and facilitate communications between them in the common society. Smart is a sort of collective intelligence where digital and structured knowledge is used to answer more efficiently to complex problems that have been formalized in ontologies. This decision help solution brought by Semantic Web is the third technological response for being sustainable in the UE worldview.