Although nosqldatabases are claimed to be schemaless, several nosql database vendors have chosen JSON as agile data representation format and provide a JSON-based API or query facility to simplify the life of applica...
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ISBN:
(纸本)9783319444062;9783319444055
Although nosqldatabases are claimed to be schemaless, several nosql database vendors have chosen JSON as agile data representation format and provide a JSON-based API or query facility to simplify the life of application developers. Whereas many applications require the management of temporal data, the JSON Schema language lacks explicit support for time-varying data. In this paper, for a systematic approach to the management of temporal data in nosqldatabases, we propose a framework called temporal JSON Schema (tau JSchema), inspired by the tau XSchema framework defined for XML data. tJSchema allows defining a temporal JSON schema from a conventional JSON schema and a set of temporal logical and physical characteristics. Our framework guarantees logical and physical data independence for temporal schemas and provides a lowimpact solution since it requires neither modifications of existing JSON documents, nor extensions to the JSON format, the JSON Schema language, and all related tools and languages.
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