Object subsets may be formally defined by using the basic attributes recognised by ORION.
These attributes fall into 5 general types:
- attributes which are independent of the state of the model and of the existence of other
variables. They are:
- attributes which depend upon the variable being in a certain environment. They are:
Network Connection Attributes:
- attributes which depend upon the variable being connected in some way to other
variable(s). The connection is usually dependent on the logical state of the connection.
Both synonyms and directed synonyms are traversed in checking for connection. The
connection attributes are:
Model State Attributes:
- attributes dependent on the Current Solution state of the Model. They are:
The connection criteria, such as MEMBERS, also depend on the
state of the model - if the logical control of the operator is set false, no notice is
paid to the connection.
- attributes which allow the user to refer to the last selected set, or to cycle though a
|FND factor integerspec |
|FOR factor factor |
|IF factor factor |
- Control how the various criteria are applied.
Any of the attributes may be combined into arbitrarily complex selection expressions by
using the set combination operators - that is, AND, CONSISTENT, MINUS, OR, XOR.