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UNSPSC:
The United Nations Standard Products and Services Code
is a hierarchical convention that is used to classify all
products and services. It is the most efficient, accurate
and flexible classification system available today for achieving
company-wide visibility of spend analysis, enabling procurement
to deliver on cost-effectiveness demands and allowing full
exploitation of electronic commerce capabilities.
eOTD:
The eOTD is a dictionary of terminology where terms, definitions
and images are linked to concept identifiers, these concept
identifiers are used to create encoded descriptions of individuals,
organizations, locations, goods and services.
eCl@ss:
eCl@ss is a hierarchical system for grouping materials,
products and services according to a logical structure with
a level detail that corresponds to the product-specific
properties that can be described using norm-conforming properties.
Products and services can be allocated to the four-stage,
numeric eCl@ss class structure.
NAICS:
NAICS (pronounced nakes), is the North American Industry
Classification System. NAICS is used by business and government
to classify and measure economic activity in Canada, Mexico
and the United States. The NAICS numbering system is a six-digit
code. The first five digits are generally (although not
always strictly) the same in all three countries. The last
digit designates national industries. The first two digits
designate the largest business sector, the third digit designates
the sub sector, the fourth digit designates the industry
group, and the fifth digit designates particular industries.
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