Link ClausesA link clause is a required component of a link rule defined in the Link Rules (SP) application. You use the Link Rules (SP) application in the Reconciliation module to define a relation (or link) between a top-level object in Data Set 1 and an object in Data Set 2. For more information about data sets, see Reconciliation Module Data Sets. Each link clause identifies an object and attribute of a top-level object in Data Set 1 to link to a specific attribute of an object in Data Set 2 when the system executes a reconciliation task. The Link Rules (SP) application lists link clauses in the Link Clauses table window on the Link Rule tab.
The following table describes the elements of a link clause:
|
Field |
Function |
Rules/Requirements |
|
Sequence |
Number that specifies the order in which to process the clause. |
Mandatory. Use a unique number for each clause. Use a number greater than 0. The default is increments of ten in ascending order. |
|
Open Parenthesis ( ... |
Marks the beginning of a set of clauses grouped together so that the system can perform operations on them in a specific order. |
Optional. However, for each open parenthesis, use a corresponding close parenthesis. |
|
Data Set 1 Object |
Specifies the target object in Data Set 1. |
Mandatory. Selected from a value list that includes the following values: For assets:
For configuration items (CIs):
|
|
Data Set 1 Class Structure |
When you select a specification as the Data Set 1 object, this field identifies a specific class structure for reconciliation. |
Mandatory if you select ASSETSPEC or CISPEC for the object. Selected from a value list. Values in the list are class structure identifiers for the top-level objects. |
|
Data Set 1 Class Structure Description |
Displays a description of the selected class structure. |
Read-only field. |
|
Data Set 1 Classification |
Displays the classification for the selected class structure. |
Read-only field. |
|
Data Set 1 Attribute |
Identifies the specific attribute of the object or class structure to link. For assets and deployed assets, the attribute is typically a serial number or asset tag. For CIs and actual CIs, it is typically ACTCINUM, the actual CI number. |
Mandatory. Selected from a value list. Values in the list depend on the value selected in the Data Set 1 Object field. |
|
Data Set 1 Attribute Title |
Displays the title of the Data Set 1 object attribute. |
Read-only field. |
|
Operator |
Identifies the type of link between Data Set 1 and Data Set 2. |
The equals ( = ) operator is read-only; it cannot be changed. |
|
Data Set 2 Object |
Identifies the target object in Data Set 2. |
Selected from a value list that includes the following values: For assets:
For configuration items (CIs) :
|
|
Data Set 2 Class Structure |
When you select a specification as the Data Set 2 object, this field identifies a specific class structure for reconciliation. |
Mandatory if you select ACTCISPEC. Selected from a value list. Values in the list are class structure identifiers for the top-level objects. |
|
Data Set 2 Class Structure Description
|
Displays a description of the selected class structure. |
Read-only field. |
|
Data Set 2 Classification |
Displays the classification for the selected class structure. |
Read-only field. |
|
Data Set 2 Attribute |
Identifies the specific attribute in Data Set 2 to link. For assets and deployed assets, the attribute is typically a serial number or asset tag. For CIs and actual CIs, it is typically ACTCINUM, the actual CI number. |
Mandatory. Selected from a value list. Values in the list depend on the value selected in the Data Set 1 Object field. |
|
Data Set 2 Attribute Title |
Displays the title of the Data Set 2 attribute selected. |
Read-only field. |
|
Close Parenthesis ... ) |
Marks the end of a set of clauses grouped together so that the system can perform operations on them in a specific order. |
Optional. However, for each close parenthesis, use a corresponding open parenthesis. |
|
Sequence Operator |
When more than one link clause exists, this operator prescribes how the current clause relates to the next clause in the sequence. |
Required if a link rule consists of more than one clause. Must be empty for the last row in the sequence (that is, the row with the highest sequence number). Selected from a value list that includes the following values:
|