ISO/IEC 18023-1:200x(E) — Table 6.210 DRM_Pseudo_Code

Table 6.210 — DRM_Pseudo_Code_Function

Property

Description

Class

<DRM Pseudo Code Function>

Superclass

<DRM Function>

Subclass

None.

Definition

An instance of this DRM class specifies the behaviour of a function that does not correspond to an entry of 5.2.7.30 Predefined_Function.

The name field specifies the name of the function being represented.

The pseudo_code field specifies the pseudo code describing the behaviour of the function represented by the <DRM Pseudo Code Function> instance.

Class diagram

Figure 6.256 — DRM_Pseudo_Code_Function

Inherited field elements

Field name	Range	Field data type
value_type		EDCS_Attribute_Value_Type

Field elements

Field name	Range	Field data type
name		String
pseudo_code		String

Default field values

Default field values for DRM_Pseudo_Code_Function

Associated to (one-way) (inherited)

None.

Associated to (one-way)

None.

Associated by (one-way) (inherited)

None.

Associated by (one-way)

None.

Associated with (two-way) (inherited)

None.

Associated with (two-way)

None.

Composed of (two-way) (inherited)

zero or more {ordered} <DRM Expression> instances¹

Composed of (two-way)

None.

Composed of (two-way metadata) (inherited)

None.

Composed of (two-way metadata)

None.

Component of (two-way) (inherited)

zero or more <DRM Control Link> instances
zero or more <DRM Feature Model Instance> instances, each through the use of a <DRM Model Instance Template Index> link object
zero or more <DRM Function> instances
zero or more <DRM Geometry Model Instance> instances, each through the use of a <DRM Model Instance Template Index> link object

Component of (two-way)

None.

Constraints

Clarifications

¹The <DRM Expression> components of a <DRM Function> instance, if any, represent the arguments of the function being represented, so a <DRM Function> instance has <DRM Expression> components if that <DRM Function> instance takes arguments. The <DRM Expression> components are ordered so as to unambiguously specify which <DRM Expression> component is being supplied for each argument of the <DRM Function> instance. The exact interpretation of each argument is defined by the specific function.

Example(s)

Consider a <DRM Translation> instance representing the current position of a lift cage in a lift shaft. Since the translation_amount varies, the <DRM Translation> instance has a <DRM Translation Control Link> component with a <DRM Pseudo Code Function> component specifying the translation_amount. The name field of the <DRM Pseudo Code Function> component is set to {{{’E’, ’N’}, {’U’, ’S’, ’A’}}, 26, “lift cage control function”} and the pseudo_code field content is “Let B be the <DRM Variable> component representing the button that summons the lift cage. If B is on and the lift cage is present, open the door. If B is on and the lift cage is not present, translate the lift cage into position at a speed of one metre per second and open the door when the lift cage is in position.”