During the Information Classification stage the products are linked to the corresponding product categories in one of the content standards. There are a number of content standards, which may be classified as horizontal standards and vertical standards (cf. Figure 8). As shown in the figure, the horizontal standards provide a classification of all products in many domains. Therefore, they are often shallow and non-descriptive (i.e. they do not provide any attribute-based descriptions of the classified items). Each of the vertical standards provides a deep and narrow classification of a certain limited domain, e.g. the domain of IT devices. Normally, a vertical standard expands several bottom-level categories of a horizontal standard
KeywordsMapping Rule Screen Size Source Domain Target Category Window Frame
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