Previous Next JavaScript must be enabled to correctly display this content

15Ambiguity Resolution

Ambiguity Resolution

This chapter gives examples of how ambiguity resolution might be used in promotion upgrades, splits, or merges. You might use ambiguity resolution differently, depending on your business model. This chapter includes the following topics:

Sum of Assets Greater Than MAX Cardinality

The promotion has a product component with multiple instances among the assets. If the sum of the assets is greater than the MAX cardinality defined in the promotion, then there is an ambiguity.

Sequence 1

	`Promotion Def`
	`Prom1`
	`\|`
	`\|-> Prod1(1,1,1)`

	`Installed Assets`
	`Asset Qty`
	`-------- ----`
	`Prod1 1`
	`Prod1 1`

	`Results in an Ambiguity`

Sequence 2

	`Promotion Def`
	`Prom1`
	`\|`
	`\|-> Prod1(,,)`

	`Installed Assets`
	`Asset Qty`
	`-------- ----`
	`Prod1 1`
	`Prod1 1`

	`No Ambiguity`

Sequence 3

	`Promotion Def`
	`Prom1`
	`\|`
	`\|-> Prod1(2,,)`

	`Installed Assets`	`Installed Assets`
	`Asset Qty`	`Asset Qty`
	`-------- ----`	`-------- ----`
	`Prod1 1`	`Prod1 1`
	`Prod1 1`	`Prod1 2`

	`No Ambiguity`	`No Ambiguity`

Sequence 4

	`Promotion Def`
	`Prom1`
	`\|`
	`\|-> Prod1(,2,)`

	`Installed Assets`	`Installed Assets`
	`Asset Qty`	`Asset Qty`
	`-------- ----`	`-------- ----`
	`Prod1 1`	`Prod1 2`
	`Prod1 1`	`Prod1 2`

	`No Ambiguity`	`Results in an Ambiguity`

Conclusion

If no MAX cardinality is defined, then there is no ambiguity.
If MAX cardinality is defined, then sum up the Qty (in assets). If the sum is:
- Less than MAX, then there is no ambiguity
- Greater than MAX, then it is ambiguous

Same Product Component Twice

The promotion has the same product component twice, which results in an ambiguity. The asset has one instance of the promotion component.

Sequence 1

	`Promotion Def`
	`Prom1`
	`\|-> Prod1(1,1,1)`
	`\|-> Prod1(1,1,1)`

	`Installed Assets`
	`Asset Qty`
	`-------- ----`
	`Prod1 1`

	`Results in an Ambiguity`

Sequence 2

	`Promotion Def`
	`Prom1`
	`\|-> Prod1(1,1,1)`
	`\|-> Prod1(1,2,2)`

	`Installed Assets`	`Installed Assets`
	`Asset Qty`	`Asset Qty`
	`-------- ----`	`-------- ----`
	`Prod1 1`	`Prod1 2`

	`Results in an Ambiguity`	`No Ambiguity`

Sequence 3

	`Promotion Def`
	`Prom1`
	`\|-> Prod1(,,)`
	`\|-> Prod1(,,)`

	`Installed Assets`
	`Asset Qty`
	`-------- ----`
	`Prod1 1`

	`Results in an Ambiguity`

Sequence 4

	`Promotion Def`
	`Prom1`
	`\|-> Prod1(,,)`
	`\|-> Prod1(1,1,1)`

	`Installed Assets`	`Installed Assets`
	`Asset Qty`	`Asset Qty`
	`-------- ----`	`-------- ----`
	`Prod1 1`	`Prod1 2`

	`Results in an Ambiguity`	`No Ambiguity`

Conclusion

If the Product quantity in the installed assets matches more than one Product cardinality (in the Promotion Def, that is, Asset QTY falls between MIN and MAX cardinalities of more than one Promotion Def), then treat it as ambiguous.

Multiple Assets of the Same Product

There is more than one asset of the same product and that product is in the promotion more than once. If there is a n::m relationship between installed assets and Promotion Def, then treat it as ambiguous. (This is the simplest solution.)