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New installs load a default set of rules from conf/attributes/default-rules.xml to use for a common/standard set of attributes. In addition it , this contains rules for encoding and decoding of common attributes.
Additionally the configuration loads conf/attribute-resolver.xml as a service resource. Although the The default resolver does not specify any attribute encoders, they can be useful in the case where you need to associated an Activation Conditionactivation condition with the precise format.
Upgrades
Upgraded systems do are instead configured to only load conf/attribute-resolver.xml in order to process the <AttributeEncoder> elements within it in order to produce a compatible set of rules to use. Further, the The default set of rules supplied with the software are not loaded in order to prevent any changes in behavior.
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