Fading Schemas… Alon Y. Halevy CIDR 2003 Update • Award for Most Outrageous Idea – Concerning my database course format. • Implemented: – 4 times at the University of Washington – Around the globe… – See SIGMOD Record, September, 2003. • Customer reviews: – Very high! – “Halevy Rocks”. DB & IR • Important area and amazing opportunity – Current focus: seamless querying – Integration after the fact. • But what about the modeling phase? – How can we design applications that manipulate both kinds of data? – For domains that are inherently complex or constantly evolving. e.g: • Modeling web sources • Personal information management • Biomedical informatics Fading Schemas • Web: modeling the class RealEstate. – Realize: subclasses are a messy proposition. – Instead: describe subclasses by keywords. • PIM: modeling property Participant. – Realize: there are many sheds of participation. – Instead: describe variants with keywords. • Key point: keywords are related to the schema constructs in important ways.