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SysMLv2: Cameo: CAUTION: The "name" displayed for root namespaces on nodes in the model containment browser is just GENERATED from one or more named members within that root namespace. A root namespace does NOT have a name in the underlying SysMLv2 model!

Icon class
icon_class
far fa-sticky-note
icon_class_computed
far fa-sticky-note
Note kind
GOTCHA
TOOL
WARNING
Policy level
INFORMATIVE
Specification keywords
SysMLv2
SysMLv2 keywords
root namespace
namespace
name
Keywords
SysML2.0: 'Any root namespace within the global namespace may refer to the name of a top-level element of any other root namespace using an unqualified name (since root namespaces are themselves never named).'

Cameo generates a displayed “name” for each root namespace node in the model containment tree. If there is only one top-level namespace (such as a package) under the root it will take the name of that top-level namespace as the “name”. If there is more than one, it will take the name of the 1st suffixed with an ellipsis ....

This is convenient for display and navigation in the model containment browser, but that root namespace "display name" is NOT in the underlying model. In particular, you should not include that root namespace "display name" in qualified paths when drilling down from the global scope using $::..., that is, don't repeat the name of a top-level namespace owned by a root namespace.

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  [SysMLv2] Any root namespace within the global namespace may refer to the name of a top-level element of any other root namespace using an unqualified name (since root namespaces are themselves never named).
  [SysMLv2] A root namespace is a namespace that has no owner. The owned members of a root namespace are known as top-level elements.
  [SysMLv2] The declaration of a root namespace is implicit and no identification of it is provided in the SysML notation. Instead, the content of a root namespace is given simply by the list of its top-level elements.
  [SysMLv2] For the purposes of model interchange ... a single project may contain one or more root namespace, though there is no syntax for defining a project in the SysML syntax.
  [SysMLv2] Any element that is not a root namespace has an owner and, therefore, must be in the ownership tree of a top-level element of some root namespace.
  [SysMLv2] While a root namespace has no explicit owner, it is considered to be within the scope of a single global namespace.
  [SysMLv2] This global namespace may contain several root namespaces (such as those being managed as a project), and always contains at least all of the KerML and SysML model libraries ...
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