1. Jim Carpenter March 26, 2001 Last Update: Wednesday, June 14, 2001
Analyzing the Definition of a Classification Scheme In ISO Part 2: Classification
Jim Carpenter
March 26, 2001
Last Update: Wednesday, June 14, 2001

2. Classifications Scheme 3 part definition from 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

3. Classification Scheme
the descriptive information
Basic attributes
Classification_Scheme
Set of attributes
Scheme type
classification_scheme_administered_item: Administration_Record
classification_scheme_type_name: String
1..n
membership
0..n
Classification_Scheme_Item
Group type
Group name
csi_type_name: String csi_value: String
Relationship between groups
classification_scheme_item_relationship

4. Classification_Scheme Attributes Three Examples
classification_ scheme_type_ name
classification_scheme_ administered_item/ designation/name
csi_type_name
csi_value
Keyword List
Keywords for classifying my articles
Keyword
politics
Taxonomy
Taxa
trout
Data Model
Business model of a grocery store
Class
Customer
Example 1:
Example 2:
Example 3:

5. 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_item
Designation, Definition, Context
Documentation of scheme
Reference_Document
Item (group) types, values, and relationships
Attributes: Classification_Scheme_Item
csi_type_name, csi_value
Classification_Scheme_Item_Relationship

6. Descriptive Information:
scheme type, item type, item value, & item relationship

7. Descriptive Information:
Definition, designation, context, and reference document

8. 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”

9. Classification
Groups
Objects to classify

10. 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

11. 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:
Administration_Record
Reference_Document
reference
reference_document_title

12. 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:
Administration_Record
Class in Model
Relationships in Model