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Multidimensional semi structured data MSSD are semi structured data that present deferent facets under deferent contexts i.e., alternative worlds for the representation of MSSD various formalisms have been proposed by the authors both syntactic such as MSSD expressions and MXML as well as graphical such as Multidimensional OEM. In this paper, the authors present an infrastructure for handling MSSD. This infrastructure provides appropriate tools for building MSSD applications and is independent from any particular application that uses it. They also present a graphical interface called MSSDesigner that provides access to the infrastructure and they describe OEM History an MSSD application that supports keeping track of temporal changes in semi structured databases.
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