A Shoji entity is identified by the element key having value shoji:entity. Its principal attribute is the body key, which is an object containing the attributes that describe the entity.
A catalog is identified by its element key having value shoji:catalog with its principal attribute being index that contains an object keyed by the URLs of the entities it contains and for each key an object (tuple) with attributes from the referenced entity.
Shoji catalogs are not ordered. For its ordered representations they may provide an orders set of Shoji order resources.
A Shoji view is identified by its element key having value shoji:view with its principal attribute being value. This can contain any arbitrary JSON object.
Shoji orders are identified by the element key having a value shoji:order. Their principal attribute is the graph key which is an array containing the order of present resources.
A shoji order may be associated with a catalog. In such case it will contain a subset or totality of the entities present in the catalog. The catalog remains as the authoritative source of available entities.
Any entity not present on the order but present in the catalog may be considered to belong at the bottom of the root of the graph in an arbitrary order, or may be excluded from view.