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, 2024
- ASHRAE Online Bookstore
- Addenda
- Errata
- Return to Previous Page
- ANSI/ASHRAE/IBPSA Standard 232-2024 [Go to Page]
- Contents
- Foreword
- 1. Purpose [Go to Page]
- 1.1 Purpose. This standard defines metaschemas (such as data types, data elements, naming conventions, and formats) to specify and validate other standard schemas for data exchange among building performance and HVAC&R software.
- 2. Scope [Go to Page]
- 2.1 Scope. This standard applies to data models and schemas specified in other standards for the design, operation, and performance of buildings.
- 3. Definitions and Symbols [Go to Page]
- 3.1 Definitions
- 4. Compliance with the Standard [Go to Page]
- 4.1 Extensibility. A data model that extends the specification included in the standard or includes additional documentation is still compliant if it does not change or contradict the requirements included in the standard. A data model specification ...
- 4.2 Schema Format. The data model shall state which schema formats are allowed (JSON schema, XSD, etc.), to define the data model.
- 4.3 Serialization Format. The data model shall state which serialization formats (XML, JSON, etc.), are allowed to transmit data complying to the specification.
- 5. Data Model Content [Go to Page]
- 5.1 Data Group Composition. A data group is a collection of data elements and embedded data groups. Data group names shall be concatenated capitalized words (e.g., ExampleDataGroup). The names of data groups that conform with specific, reusable data ...
- 5.2 Data Element Attributes. Data elements shall be characterized in data groups by the attributes shown below. Data element names shall be lower_case_with_underscores.
- 5.3 Data Type Definitions. Each data element shall have one of the data type attributes described below.
- 5.4 Units
- 5.5 Constraints. The following constraints are used for the “Constraints” data element attribute. When multiple constraints apply to the same data element, the constraints shall be specified as a list.
- 5.6 Required Data Elements. The “Required” data element attribute is used to indicate the conditions where a data element value is required if the containing data group is present. The following conditions are allowed.
- 5.7 ID. The “ID” data element attribute is used to indicate when the data element value is used to reference an instance of the data group from a different data group. The ID data element shall be denoted with a Boolean true for the “ID” data...
- 6. Data Model Specifications [Go to Page]
- 6.1 Documentation
- 6.2 Data Model. This section specifies the local data groups and local enumerations that comprise the data model.
- 7. Common Data Groups [Go to Page]
- 7.1 Metadata
- 8. Reusable Data Groups [Go to Page]
- 8.1 TimeSeries
- 9. References
- Informative Appendix A: Naming Guidelines [Go to Page]
- A1. Pre-Existing Names
- Informative Appendix B: Generic Timestamp Examples
- Informative Appendix C: Time Interval Examples
- Informative Appendix D: Informative References [Go to Page]
