 There is no fixed schema elsewhere, so new data that arrives in the system describes itself, at Item-level granularity.The EntityClass and Attribute numbers or names can be represented in extended JSON.When data is displayed in the web-based Client/Server database browser, it can be viewed, manipulated, and transferred as a list of sorted formatted Items, or as JSON documents, or as nestable tables whose visible structure is determined by the EntityClass and Attributes that are mixed into the Items.