<?xml version="1.0" encoding="utf-8"?>
<ManualTopic ID="/baanerp/ts/onlinemanual/000003" xml:lang="en">
	<Header>
		<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">To specify maintenance concepts</Title>
		<Keyword><Level1>Maintenance concepts</Level1>
			<Level2>specify</Level2>
		</Keyword>
		<Keyword><Level1>Specify maintenance concepts</Level1>
		</Keyword>
	</Header>
	<GeneralSection><Paragraph>Maintenance concepts are <Link href="/baanerp/ts/glossary/glossary#000075" role="glossary">item</Link>-specific reference activities, or predicted activities that are linked to an item. To do this, specify for each item which <Link href="/baanerp/ts/glossary/glossary#RefereActivi.ts" role="glossary">reference activities</Link> are required, and how many times these activities must be carried out. The <Link href="/baanerp/ts/glossary/glossary#Requirements.ts" role="glossary">requirements</Link> can be specified for each reference activity.</Paragraph>
		<List><ListIntro>Maintenance concepts can be defined in the following sessions:</ListIntro>
			<ListItem><GUIRef href="/baanerp/ts/spc/tsspc1521m000" role="session">Maintenance Concepts (tsspc1521m000)</GUIRef>
			</ListItem>
			<ListItem><GUIRef href="/baanerp/ts/spc/tsspc1120m000" role="session">Maintenance Concepts - Item (tsspc1120m000)</GUIRef>
			</ListItem>
			<ListItem><GUIRef href="/baanerp/ts/spc/tsspc1125m000" role="session">Maintenance Concept - Predicted Activities (tsspc1125m000)</GUIRef>
			</ListItem>
		</List>
		<Paragraph>If you define a <Link href="/baanerp/ts/glossary/glossary#MainteConcep.ts" role="glossary">maintenance concept</Link>, you can make use of the functionality offered by the multilevel serialized item structure. If, for example, a maintenance activity is required for several products of one product family, the product family can be included in the serialized item structure. The family is included as a serialized item under which the common maintenance activities are defined.</Paragraph>
		<Paragraph>The <Link href="/baanerp/ts/glossary/glossary#UsageClass.ts" role="glossary">usage class</Link> enables you to define more than one maintenance concept for an item.</Paragraph>
		<Formula><Paragraph UserLevel="Novice" UserType="Taskuser">
                                              +-----------+
                                              | Measuring |
                                              | quantity  |
                                              +-----+-----+
                                                    |
                                                    |
+-----------+  +-----------+   +-----------+  +-----+-----+
| Activity  |  |   Skill   |   |  Coverage |  | Measuring |
| group     |  |           |   |  type     |  | type      |
+-----+-----+  +-----+-----+   +-----+-----+  +-----+-----+
      |              |               |              |
      |              +--&gt;---+ +---&lt;--+              |
      +--------&gt;---------+  | |  +---------&lt;--------+
                         |  | |  |
                       +-+--+-+--+--+
                       | Reference  |
                       | activity   |
                       +----+---+---+
                            |   |            +------------+
                            |   +-----------&gt;|Material    |
+---------+   +-------+     |   |            |requirement |
|Serialzd.|   | Usage |     |   |            +------------+
| item    |   | class |     |   |            +------------+
+-+--+--+-+   +---+---+     |   +-----------&gt;|Labor       |
  |  |  |         |         |   |            |requirement |
  |  |  |         +-------+ |   |            +------------+
  |  |  +-------&gt;-------+ | |   |            +------------+
  |  |                  | | |   +-----------&gt;|Other       |
  |  |                  | | |                |requirement |
+-+--+----+            ++-+-+------+         +------------+
|Physical |            | Reference |
|breakdown|            | activity  |
+---------+            | by item   |
                       +-----+-----+
                             |
                             |
                      +------+------+
                      | Maintenance |
                      | prediction  |
                      +------+------+

            Data Diagram Maintenance Concepts  </Paragraph>
		</Formula>
	</GeneralSection>
	<RelatedTopics><SectionTitle>Related topics</SectionTitle>
		<RelTopic><Link href="/baanerp/ts/onlinemanual/000017" role="manual">Activity groups</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/ts/onlinemanual/000113" role="manual">Maintenance policies</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/ts/onlinemanual/000010" role="manual">To define serialized items</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/ts/onlinemanual/000012" role="manual">Cluster layout example</Link>
		</RelTopic>
	</RelatedTopics>
</ManualTopic>
