Parameter

Description

Always Evaluate

Hard, Soft or Breakable.

Controls what happens when the extension eliminates all items in the range source.

Hard

All items will remain eliminated. Enter a wait state after the logic script has completed.

Soft

Roll back any eliminations made by this extension.

Breakable

Roll back any eliminations made by this extension that have a danger point value of TRUE (non zero).

Routing logic modules first use the danger defined for each individual decision

However, one of the following may occur instead.

If:

Then:

No danger point has been configured for the decision

The site-wide danger point is used.

This function block is used in the decision output logic.

The site-wide danger point is used.

No danger point can be found for a decision.

The decision remains eliminated.

Attribute Name Array

Text array point.

Each rule contains an attribute name/value that the function block compares to an item's corresponding attribute names/values.

Note: The value is defined in the Attribute Value array.

Results can be any of the following.

If:

Then:

The attribute values match.

The function block compares the respective Attribute Release percent against the Total Release Count.

Selecting the current item would exceed the percent defined by the Upper Release % Target.

The comparison fails for that attribute and the:

Item is either weighted or eliminated.

Failure is saved as history data.

Selecting the current item would cause a different attribute name/value to fail to meet its minimum Lower Release % Target defined in another rule,

The comparison fails for the current attribute and the:

Current item is either weighted or eliminated.

Failure is saved as history data

Note: To compare items that satisfy a named query or query expression, enter the reserved name SOLVE for this element in the Attribute Name array. (This is  instead of the actual name of an attribute). You can then enter a named query or query expression as the respective element in the Attribute Value array.

Attribute Value Array

Text array point.

Each rule contains an attribute name/value that the function block compares to an item's corresponding attribute names/values.

Note: The name is defined in the Attribute Name Array.

An element in the array can contain:

The value of the respective attribute in the Attribute Name Array.

Each element can contain one or multiple values with a comma separator. Do not include quotes.

Attribute values can be wild cards.

A named query, or query expression, returning a Boolean result.

Guidelines

For any element in the Attribute Name Array that contains the reserved name SOLVE you can enter a named query, or query expression, as the respective value element.

In this case, the percentage rule is not applied to an attribute name/value, but is instead applied to any items for which the query returns TRUE.

Example

A Boolean named query $IsStandardHatchback$ returns TRUE for items that have a standard transmission and have a hatchback rear door.

$IsStandardHatchback$ is the query expression:
Vehicle.Transmission='Standard'&Vehicle.DoorType='Hatchback'

When $IsStandardHatchback$ is entered as the value element, the applied percentage rule determines the percent of selected vehicles that can be standard hatchbacks.

However, interaction with other rules can cause a hatchback item to fail even if it complies with the hatchback percent rule.

Example

1. The current hatchback item is red.

2. Selecting the red hatchback causes the percentage rule defined for a different attribute (or query) e.g. COLOR Blue, to fail to meet its Lower Release % Target,

3. The current red hatchback item is eliminated.

You can use a query that returns a set of attributes, instead of a Boolean result, by setting the query name or expression to a particular value.

Example

A attribute named query $TransmissionIs$ is the expression Vehicle.TransmissionType.

$TransmissionIs$ can be entered as the value element of this array in the form of an expression:
$TransmissionIs$ = 'Standard'

Upper Release % Limit

Contains the upper percentage limit for a Percentage rule.

If selecting the current item would cause the Attribute Release percent for the respective name/value to exceed the specified percentage of the Total Release Count, the item fails.

Lower Release % Limit

If selecting the current item would make it impossible to satisfy the Lower Release % Limit defined for any other attribute name/value for the items that remain in the range source, then the current item fails.

Example

The current item is a red, two-door car.

1. The number of red cars selected has not yet reached the Upper Release % Limit defined for Color/Red.

2. Selecting the red two-door would cause the percentage of four door cars selected to fall below its defined  Lower Release % Limit

3. The red, two-door car is eliminated instead of being selected.

Notes:

This evaluation checks the Lower Release % Limit for attributes of all items that remain in the range source for which a percentage rule has been defined.

Eliminate Sources Percentages function block is generally used within a multiple-pass Resequence Block Module. Therefore, a rejected item may be selected by a subsequent pass in that case.

Attribute Release Array

Integer (analog) array point.

Each element in the array contains the total number of items already selected that have the same attribute name/value.

Total Release Count

Integer (analog) point.

Counter point stores and continues to increment the total number of items released.

Record Attribute Percentages.

Eliminate and Weight Sources.

RSA function blocks list.