Integration makes Semantic Mismatches visible
Information comes from many autonomous sources
Differing viewpoints (by source)
- differing terms for similar items { lorry, truck }
- same terms for dissimilar items trunk ( luggage, car )
- differing coverage vehicles ( DMV, police, AIA )
- differing granularity trucks (shipper, manuf.)
- different scope student (museum fee, Stanford )
Hinders use of information from disjoint sources
- missed linkages loss of information, opportunities
- irrelevant linkages overload on user or application program
Poor precision for interoperation
ok for web browsing poor for business and science