SysML, UAF, UML, and UPDM Profiles > UPDM profiles > Products and elements - NAF aliases > Elements > External tuple (UPDM - NAF aliases)
  
External tuple (UPDM - NAF aliases)
Creation
To create an External Tuple:
• From an Architectural Description or Service Description: right-click the Architectural Description or Service Description, point to New, point to NAF, point to All, and then click External Tuple.
Appearance
An External Tuple does not appear on any diagrams.
Relationships
There are no relationships that are of significant importance to an External Tuple.
The following sections provide information about how an External Tuple is used in the model.
Create an External Tuple from
Architectural Description
Service Description
Create from an External Tuple
Only the UPDM elements that can be created from all UPDM elements ( Alias, Definition, Information and Metadata).
Shown on these diagrams, tables and matrices
Only the NAV-2 Integrated Dictionary and NTV-1 Standards Profile, which can show all UPDM elements.
UPDM writeable properties
The following writeable properties are available on the External Tuple tab of an External Tuple element's Property Pages:
• URI
• url