Analyzing the Definition of a Classification Scheme In ISO 11179 Part 2: Classification

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Analyzing the Definition of a Classification
Scheme InISO 11179 - Part 2Classification

• Jim Carpenter
• March 26, 2001
• Last Update Wednesday, June 14, 2001

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Classifications Scheme3 part definitionfrom
ISO/IEC 11179 Part 3

• Descriptive information
• for an arrangement or division of objects into
  groups
• based on characteristics, which the objects have
  in common

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Classification Scheme

• the descriptive information

• Basic attributes

Classification_Scheme
Set of attributes Scheme type
classification_scheme_administered_item
Administration_Record classification_scheme_type_n
ame String
1..n
membership
0..n
Classification_Scheme_Item
Group type Group name
csi_type_name Stringcsi_value String
classification_scheme_item_relationship
Relationship between groups
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Classification_Scheme Attributes Three Examples
Attribute
Example 1
Example 2
Example 3
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Descriptive information

• Scheme type
• Examples key word list, taxonomy, model, etc.
• Attribute classification_scheme_type_name
• Scheme name, definition, and context
• Attributes classification_scheme_administered_ite
  m
• Designation, Definition, Context
• Documentation of scheme
• Attributes classification_scheme_administered_ite
  m
• Reference_Document
• Item (group) types, values, and relationships
• Attributes Classification_Scheme_Item
• csi_type_name, csi_value
• Classification_Scheme_Item_Relationship

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Descriptive Information scheme type, item type,
item value, item relationship
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Descriptive Information Definition,
designation, context, and reference document
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Classification Scheme

• for an arrangement or division of objects into
  groups

• Purpose is to arrange objects into groups
• The objects being classified are administration
  records
• The groups are called classification scheme
  items

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Classification Groups
Objects to classify
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Classification Scheme

• based on characteristics, which the objects have
  in common

• Characteristics
• could be arbitrary
• are different than those specified by attributes
  in the model in part 3
• Serves to extend the attribute set of an
  administrative record

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Attribute Set of An Administration_Record

• Any path from Administration_Record ending in a
  class or property is an attribute of the
  Administration_Record
• Example
• Slash notation
• Administration_Record/reference/Reference_Document
  /reference_document_title
• UML notation

reference

• reference_document_title

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Path Structure

• Any path in a model can be represented as a
  reflexive relationship of a class to itself.
• Thus, any Administration_Record attribute can be
  represented with this UML diagram

Relationships in 11179 Model
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