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<ManualTopic ID="/baanerp/cp/onlinemanual/000065" xml:lang="en">
	<Header>
		<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Resource priority for optimization</Title>
		<Keyword><Level1>Resource priority for optimization</Level1>
		</Keyword>
		<Keyword><Level1>Optimizing logistic parameters</Level1>
		</Keyword>
		<Keyword><Level1>Resource priority</Level1>
		</Keyword>
	</Header>
	<GeneralSection><Paragraph>You can define a resource priority in the <GUIRef href="/baanerp/cp/rao/cprao3120m000" role="session">Resource Cost Values (cprao3120m000)</GUIRef> session to prevent changes to previously calculated optimization results.</Paragraph>
		<Paragraph>The optimization of logistic parameters is carried out for one resource at a time. Each resource has its own resource parameters. If the production of an item involves more than one resource, a problem arises: if you optimize the item's order parameters for one resource, the order parameters are not ideal for the other resources.</Paragraph>
		<Paragraph>SSA ERP resolves this problem by using resource priorities. SSA ERP records the resource for which the item's order parameters are optimized. If you repeat the optimization for a lower-priority resource, SSA ERP retains the old order parameters. If you repeat the optimization for a resource with a higher or an equal priority, SSA ERP discards the old order parameters.</Paragraph>
		<Paragraph>The <GUIRef href="/baanerp/cp/rao/cprao3110m000#cprao310.cwoc" role="formfield">Resource</GUIRef> field in the <GUIRef href="/baanerp/cp/rao/cprao3110m000" role="session">Plan Items - Optimized Lot Sizes (cprao3110m000)</GUIRef> session displays the resource for which an item has been optimized.</Paragraph>
		<ExampleSection><SectionTitle>Example</SectionTitle>
			<Paragraph>Item X is produced with resources A and B Item Y uses only resource A Item Z uses only resource B</Paragraph>
		</ExampleSection>
		<Paragraph>Suppose that resource A has a higher priority than resource B, and that you first run an optimization for A, and then for B.</Paragraph>
		<Paragraph>During the optimization for resource A, SSA ERP calculates the optimal logistic parameters for items X and Y.</Paragraph>
		<Paragraph>During the optimization for resource B, SSA ERP does not change the logistic parameters of item X, because they were already optimized for a higher-priority resource. SSA ERP uses the logistic parameters (for example, lot size) of item X as constraints in the optimization of the logistic parameters for item Z.</Paragraph>
	</GeneralSection>
	<RelatedTopics><SectionTitle>Related topics</SectionTitle>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000042" role="manual">To optimize logistic parameters</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000131" role="manual">Optimization algorithm for logistic parameters</Link>
		</RelTopic>
	</RelatedTopics>
</ManualTopic>
