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MDFAttributeType     
Lvl Type, Domain name and/or Mnemonic code Concept ID Mnemonic Print Name Definition/Description
1 L:  (ADDR) C10046 ADDR Address

For attributes representing the location at which an organization, person, or item may be found or reached.

1 L:  (CD) C10047 CD Code

For attributes representing some concept. Note that names of individual things are not considered concepts.

1 L:  (COM) C10048 COM Communication Address

For attributes representing communication addresses, such as telephones, fax, pagers, e-mail, Web-sites and other devices and their respective protocols. See also PHON.

1 L:  (DTTM) C10050 DTTM Date and Time

For attributes representing a point in time at which an event happened or will happen. Levels of precision and variation are part of this concept and should usually not be specified in separate attributes.

1 L:  (DESC) C10049 DESC Description

For attributes representing a statement used to describe something.

1 L:  (EXPR) C10051 EXPR Formal Expression

For attributes representing formalized text that is to be evaluated primarily by computes. An attribute named "constraint_text" is most likely such a formal expression and should be renamed to "constraint_expr".

1 L:  (FRC) C10052 FRC Fraction

For attributes that represent a fraction or proportion. The former attribute type PCT for "percentage" is superceded by FRC and is no longer permitted. See also QTY.

1 L:  (TIME) C10060 TIME General Timing

A range of time between a start and an end time having a duration. The range may be infinite or undefined on either side.

1 L:  (ID) C10053 ID Identifier

For attributes that serve to identify some instance of an information model class. Note that real world Identifiers (e.g., SSN) exist not as attributes but as an association to a special information model class. The attribute type "id" without a prefix is reserved to be the main instance identifier of the class.

1 L:  (IND) C10054 IND Indicator

For attributes representing a specific condition as true or false.

1 L:  (NM) C10056 NM Name

For attributes that represent a name by which an instance of the class is known.

1 L:  (NBR) C10055 NBR Number

For attributes representing dimensionless numbers. Note that there is a big conceptual difference between integer numbers and floating point numbers. See also QTY.

1 L:  (PHON) C10057 PHON Phone

For attributes representing telephone number of a telecommunication device. See also COM.

1 L:  (QTY) C10058 QTY Quantity

For attributes representing a quantity. The nature of the quantity must be further specified through the choice of data type and through additional constraints. For physical quantities (including elapsed time) the PQ data type must be used. For monetary amounts the MO data type must be used. Parallel unit attributes are not permitted in these cases. Counted objects are not physical quantities and the count nouns are not units of measure.

1 L:  (TXT) C10061 TXT Text

For attributes representing non-descriptive, non-naming text not targeted to human interpretation. Formal expressions evaluated by computers should use the EXPR attribute type instead.

1 L:  (TMR) C10059 TMR Time Range

A range of time between a start and an end time having a duration. The range may be infinite or undefined on either side.

1 L:  (VALUE) C10062 VALUE Value

For an attribute (e.g., Observation.value) that represents a value whose data type is determined dynamically and is not predefined by the static class diagram.


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