The Wargo system: semi-automatic wrapper generation in presence of complex data access modes

Semi-automatic wrapper generation tools aim to ease the task of building structured views over Web sources. But the wrapper generation techniques presented to date show several weaknesses when dealing with the complex commercial Web sources of today, especially when constructing advanced navigational sequences for accessing data. We present Wargo, a semi-automatic wrapper generation tool, which has been used by non-programmer staff to successfully wrap more than 700 commercial Web sources in several industrial applications.