ISO 23386-2020 pdf download.Building information modelling and other digital processes used in construction一Methodology to describe, author and maintain properties in interconnected data dictionaries
4.3 Group of properties
A group of properties shall be defined using the set of attributes as listed in Table2.
Applicants can propose a group of properties as appropriate for their needs.
The different categories of a group of properties are (exhaustive list):
— alternative use;
— class;
— composed property;
— domain;
— reference document.
Groups of properties can be organised in tree structures. Any property attached to a group of properties is inherited by the sub-group(s) of properties.
Any property may be included in several groups of properties.
EXAMPLE
— class: Panel (class corresponding to a family of products in a classification);
— class: ifcWall;
— domain: Acoustic (domain corresponding to a scientific discipline), architecture, economy;
— composed property: concrete facing quality is a group of properties linking 3 properties (concrete planarity. concrete hue, concrete texture).
4.4 Attributes list
4.4.1 Attributes of a property
Table 1 provides an exhaustive list of attributes used to manage a property within a data dictionary.
TahIeJ. contains 8 columns:
— Code: code that can be used to identify the attribute;
— Name: name of the attribute;
— Description: description of the attribute, and how it shall be used;
— Example: some examples of possible values for the attribute;
— Interconnected data dictionaries management rule: rule that defines if it is mandatory or not to provide a value for the attribute. When “calculated is noticed, this means that the value of the attribute is provided by the system managing a data dictionary, not by a user (i.e. when a request has been validated, the system shall change the property’s attribute “status” to “active’);
— Request form management rule: rule that defines if it is mandatory or not relevant to provide a value for the attribute in a request form to interact with the data dictionary;
— Type: datatype of the attribute;
— List of values: list of possible values for the attribute.ISO 23386 pdf download.