Go to MPAI-OSD V1.5 Data Types

Definition
Functional Requirements
Syntax
Semantics
Conformance Testing
Performance Assessment

1    Definition

A Data Type including a collection of Basic Text Objects.

A Text Object can have a hierarchical structure where Text Objects contain Basic Text Objects and Text Objects.

2    Functional Requirements

A Text Object may include:

  1. ID of a Virtual Space (M-Instance) where it is or intended to be located.
  2. ID of the Text Object.
  3. Space-Time information of the Text Object.
  4. Basic Text Object and Text Objects included in the Text Objects.

Note that.

  1. A Text Object that does not include Sub-Scenes and only one Basic Text Object is a Basic Text Object.
  2. The Space-Time information of a Basic Text Object and Text Object included in a Text Object may be superseded by the Space-Time information of the Text Object containing them.

3    Syntax

https://schemas.mpai.community/OSD/V1.5/data/TextObject.json

4    Semantics

Table 1 – Semantics of the Text Object Data Type

Label Description
Header Text Object Header – Standard “OSD-TXO-Vx.y”
MInstanceID Identifier of M-Instance.
TextObjectID Identifier of the Text Object.
TextObjectSpaceTime Space-Time of Text Object.
BasicTextObjectCount Set of Parent Text Objects.
BasicTextObjects[] Set of Basic Text Objects.
– SpaceTime Space Time of a Basic Text Object in the Text Object.
– BasicTextObject A Basic Text Object in the Text Object.
TextObjectCount Number of Text Objects.
TextObjects[] Set of Text Objects.
– SpaceTime Space Time of a Text Object in the Text Object.
– TextObject A Text Object in the Text Object
DataXMData MPAI-PTF Data Exchange Metadata providing provenance, authorisation, legal, security, and confidence information associated with this Text Object instance in a trusted data exchange context.
DescrMetadata Human-readable descriptive metadata of the Text Object instance (plain text, max 2048 characters).

5    Conformance Testing

A Data instance conforms with Text Object (OSD-TXO) if:

  1. The Data validates against the Text Object JSON Schema.
  2. All Data in the Text Object JSON Schema:
    1. Have the specified type.
    2. Validate against their JSON Schemas.
    3. Conform with their Data Qualifiers.

6    Performance Assessment

Not part of this specification.

Go to MPAI-OSD V1.5 Data Types