Introduction

TIC 4TIC4.0 uses the JSON format as by default because it allows us to express an array of subjects (for several subsubjectssub-subjects) or observed properties (for different combinations of timestamps, pom, pomt, names, etc). JSON is also the default file format for many protocols such as REST and MQTT extensively used to share data or publish IoT data. These arrays give us a high flexibility thanks to the hierarchical structure. Other hierarchical structures, such as XML, are possible in TIC 4TIC4.0 like XML but we recommend using JSON as default.

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