Product Modelling and Product Configuration Configuration Applications

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Product Modelling and Product ConfigurationConfi
guration Applications

• Kaj A. Jørgensen
• www.iprod.aau.dk/kaj
• Aalborg University, Department of Production

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Architecture of Knowledge Based Systems

• Core system components
• Knowledge base
• representation of rules
• representation of constraints (relations)
• Workspace (database)
• Inference engine for rules
• backward reasoning from goal to conditions
• forward reasoning from conditions to conclusions
• Interface components
• Interface for knowledge engineers
• Interface for end-users

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Inference Engines (Algorithms)
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Constraints Inference

• Constraints base
• Attributes with names and data types
• Constraints (relations) arithmetic and logical
• Truth table is created
• Columns all attributes
• Rows all valid value combinations
• For each user supplied constraint, selection of
  attribute value
• Search table and remove rows where this attribute
  value is not obeyed
• Evaluate consequences for other attributes

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The end

• Thank you