OMG standards and related glossary entries

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OMG standards and related glossary entries
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Proposed glossary entries

• Meta-model
• Production rule
• PRR
• SOA
• JSR 94
• Business rules, SBVR and related entries
• Data Bases and related entries

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Format

• Proposed definition
• Why this is relevant for this group and the RIF
• How this impacts the design of the RIF
• Pointers for more information

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Meta-model

• A meta-model is the ontology for a model
• Relevance for this group and the RIF
• Specific rules expressed in a rule language are
  instances
• The rule language is the model
• The meta-model is the ontology of the rule
  language
• E.g. a  rule  is made of an  antecedent , aka
   condition , which is represented by a
   boolean expression  and a  consequent 
• The semantics of the rule language belongs to the
  meta-model
• Impact on the RIF
• Rule languages can be translated into each other
  if they share a meta-model
• Pointers for more information?

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Production rule

• A production rule is a rule where the consequent
  is an action or a list of actions
• An action is an assertion with side effects
• Production rules are widely used in commercial
  applications, esp. to automate business rules
• There is a very large base of production rules
  deployed
• Figures?
• Users demand a standard RIF and vendors are
  willing to implement it
• There is a high potential for early deployment of
  the RIF (if it fits users and vendors
  requirements)
• Impact on the RIF
• RIF must cover the specific features of
  production rules and the most widely deployed
  implementation technologies (pattern matching,
  RETE)
• Pointers for more information?

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PRR

• PRR is a meta-model for Production Rule
  Representation under specification at OMG
• PRR Core and PRR OCL
• Relevance for this group and the RIF
• See Production Rule
• Impact on the RIF
• PRR must be a meta-model for the relevant part of
  the RIF
• The (phase 2 extension of) RIF must include a
  concrete syntax for the PRR meta-model (among
  other extensions)
• PRR white paper (to be published soon by Paul)

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SOA

• SOA is an IT architectural style that supports
  service orientation
• Service orientation is a way of composing an
  application as linked services
• A service is a repeatable business task
• Relevance for this group and the RIF
• Rules are a part of an SOA
• Rules are a way to direct services
• Rules are a way to implement a service
• Impact on the RIF
• RIF must be able to include a reference to a
  service, esp. a Web service
• RIF must support an XSD type system
• Pointers for more information?

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JSR 94

• JSR 94 specifies a lightweight Java API to enable
  stateful and stateless rule engine use deploying
  rulesets from a variety of sources (including XML
  documents), undeploying rulesets
• Relevance for this group and the RIF
• JSR94 assumes the existence of a standard rule
  language RIF would be that language
• JSR94 is part of the motivation for vendors to
  implement RIF
• Impact on the RIF
• No apparent impact on the design of RIF
• JSR94 spec

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