# Logical Record Architecture for Health and Social Care
## Discharge Summary Release 0.02

Contents
The content of this release is not comprehensive and is not fully validated and must not be used in live system implementations.
# ELEMENT Constrained Domain Model: EventDoseFrequency
An ELEMENT to represent the dose frequency as the number of occurrences of a periodic or recurrent process per unit time [ ePS] in terms of the occurrence of an event which cannot be precisely measured as a calendar cycle. EventDoseTiming is used to represent a periodic interval of time where the recurrence is based on activities of daily living or other important events that are time-related but not fully determined by time. Events that qualify for being adopted in this domain must satisfy the following requirements: the event commonly occurs on a regular basis the event is being used for timing activities, and the event is not entirely determined by time1 E.g. one hour after breakfast, one hour before breakfast for 10 minutes, 30 minutes after dinner1. 1. ISO 21090 Harmonized data types for information interchange (See EIVL data type) ## Specializes ## UnboundData ## Attributes
Name | Data type | Occurs | Description | Value constraints
--- | --- | --- | --- | ---
name | SC | 1..1 | The name, expressed as a coded value or as plain text, specifies the clinical or administrative concept to which this EHR node corresponds, as labelled in the EHR system in which it was first committed. |
value
Literal value(s): UNBOUND_DATA_ELEMENT
rc_id | II.Uuid | 1..1 | The globally-unique identifier by which this node in the EHR hierarchy is referenced in the EHR system to which the data were first committed. This identifier shall be retained by the EHR Recipient and re-used whenever this RECORD_COMPONENT is subsequently included in another EHR_EXTRACT. |
synthesised | BL | 1..1 | This attribute value shall be TRUE if this RECORD_COMPONENT has been created in order to comply with this standard , but this point in the EHR hierarchy has no corresponding node in the EHR from which it was extracted. |
value
Default value: false
obs_time | IVL_TS | 0..1 | The date and time, or interval, in which the unbound data applied. |
value | ANY | 1..1 | Represents the unbound data. |
## Component Relationships ### Object Relationships
Subject Class | Name | Occurs | Dependency | Specified by
--- | --- | --- | --- | ---
CurrentMedicationActivity | AssertsTiming | 0..* | INDEPENDENT | CurrentMedicationActivity
## Item of ENTRY Constrained Domain Models ### CurrentMedicationActivity ## Reference Model Type ## UNBOUND_DATA_ELEMENT