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43 lines
1.5 KiB
Markdown
43 lines
1.5 KiB
Markdown
# Operators <a id="operators">
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Every Business Process requires an Operator. This operator defines its behaviour and specifies how its very own state is
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going to be calculated.
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## AND <a id="and-operator">
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The `AND` operator selects the **WORST** state of its child nodes:
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## OR <a id="or-operator">
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The `OR` operator selects the **BEST** state of its child nodes:
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## XOR <a id="xor-operator">
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The `XOR` operator shows OK if only one of n children is OK at the same time. In all other cases the parent node is CRITICAL.
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Useful for a service on n servers, only one of which may be running. If both were running,
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race conditions and duplication of data could occur.
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## DEGRADED <a id="deg-operator">
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The `DEGRADED` operator behaves like an `AND`, but if the resulting
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state is **CRITICAL** it transforms it into a **WARNING**.
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Refer to the table below for the case-by-case
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analysis of the statuses.
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## MIN n <a id="min-operator">
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The `MIN` operator selects the **WORST** state out of the **BEST n** child node states:
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