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The XFDU AIP Generator (XAG) is an easy-to-use graphical tool for viewing, creating, and editing manifest files, the preservation object "table of contents". The tool is created using EMF (Eclipse Modeling Framework), an Eclipse plug-in enabling the creation and further manipulation of a selected model - in our case, a model based on the XFDU standard schema.
XAG provides an easy-to-use graphical interface for creating and editing XFDU manifest files. Like other XML editors, it represents the contents of the XML file in a graphic table or tree. However, XAG has a major advantage over other graphical XML editors: it allows only the usage of valid elements and values. Unlike regular XML editors, in which validation against the schema takes place only after the XML file has been written, XAG enforces the XFDU schema rules as you go. This means that whenever one wishes to add an element to the XML file, he or she selects it from a list that contains only elements allowed by the XFDU schema; whenever one wishes to set a new value to a certain property, he or she can only select or enter valid values for the property, etc. Removing confusing, irrelevant options makes it easier for the user to work - and significantly reduces errors.
XAG Overview
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