Range of values as a single object.
For instance: Oct 22-25.
Domain Patterns
Basic Elements
Range
Time Point
- Question
How to record an instant in time?
Figure 1. Time Points with different Precisions
Multiplicity
- Question
How to represent multiplicities, such as "[0..*]"?
Figure 2. Multiplicities
Observation and Measurements
Quantities and Measurements
Quantities can be used as attributes of an object:
A person has a height and a weight
However, sometimes there are too many attributes !
Quantity
Figure 3. Integer Attributes
Figure 4. Measurements as Attributes using Quantity
Conversion Ratio
Convert quantities from one unit to another
Suitable to convert quantities with conversion ration.
Not adapted to convert non-linear units, e.g. Celsius to Fahrenheit, days to months, etc.
Exchange Table
How to convert currencies (variable currency exchange rate)?
Create exchange table with the history of rates
Compound Units
- Problem
How to convert compound units, e.g. km/h to m/s?
Measurement
- PhenomenonType
things to be measured, e.g. height, weight, blood glucose level,
- Measurement
concrete measured value
- Patient
example of data assigned to the measurement. Another attributes could be associated, e.g. who did the measurement, when it was done, where it was done, etc.
Observation (1/2)
- Question
How to record a non-quantitative values, e.g. gender (male/female), blood group (A+,A-,0, …), etc?
Observation (2/2)
- PhenomenonType
the same as before, e.g. blood group
- Phenomenon
possible values, e.g. A+, A-, 0, …
- CategoryObservation
Concrete observed qualitative value. It is similar to the measurement but has a general phenomenon instead of quantity.
Protocol
- Question
how to record the method by which the observation were made?
- Example
a method with a "long parameter list" can be found with PMD or Checkstyle
Dual Time Record
- Question
how to record the time period during which the observations can be applied?
- Example
At a consultation on May 1, 1997, John Smith tells his doctor that he had chest pain six months ago that lasted for a week.
Items and Descriptors
Items and Descriptors
Distinguish items and their descriptors:
Cars
Flights
Films and DVD.
Temporal Patterns
Temporal Properties
- Question
How to model concepts that change with time?
Adresses, Contracts with different versions, Marriage
Figure 5. Stereotype «temporal»
Figure 6. Qualified Association
Temporal Objects
Effectivity
Figure 7. Using an explicit date range to show effectivity.
Recurring Events for Calendars
Party and Schedule
Schedule Event
Temporal Expression
Temporal Expression with Set Expressions
Recurring Events
See also: «Recurring Events for Calendars»