I have talked about TFM (To Find Me) scores before. Take a look at How Can I Find Thee? Let me count the ways… for example.
So, you have looked at your OPAC, database, RDF datastore, topic map. What is your average TMF Score?
What do you think it needs to be for 60 to 80% retrieval?
The Furnas article from 1983 is the key to this series of posts. See the full citation in Are You Designing a 10% Solution?.
Would you believe 15 ways to identify a subject? Or aliases to use the common terminology.
Say it slowly, 15 ways to identify a subject gets on average 60 to 80% retrieval. If you are in the range of 3 – 5 ways to identify a subject on your ecommerce site, you are leaving money on the table. Lots of money on the table.
Want to leave less money on the table? Use topic maps and try for 15 aliases for a subject or more.