Versioning temporal characteristics of JSON-based big data via the τJSchema framework Online publication date: Wed, 19-Jan-2022
by Safa Brahmia; Zouhaier Brahmia; Fabio Grandi; Rafik Bouaziz
International Journal of Cloud Computing (IJCC), Vol. 10, No. 5/6, 2021
Abstract: In previous work, we have proposed the use of a framework, named τJSchema (temporal JSON schema), for the definition and validation of temporal JSON documents that conform to a temporal JSON schema. A τJSchema schema is composed of a conventional (i.e., non-temporal) JSON schema, annotated with a set of temporal logical and temporal physical characteristics. Subsequently, we have extended τJSchema to support versioning of conventional JSON schemas. In this work, we complete the picture by extending our framework to also support versioning of temporal characteristics. In fact, we propose a suitable versioning technique and provide a complete set of low-level change operations for the maintenance of these characteristics; for each operation, we define its arguments and its operational semantics. With this extension, τJSchema provides a full support of temporal versioning of JSON-based big data at both instance and schema levels.
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