Under the Hood
 
 
- DBI defines and implements an interface
- Driver modules do much of the real work
- DBI provides default methods, functions, tools etc  for drivers
- Not limited to the lowest common denominator -  mechanism provided for driver specific extensions
- Designed and built for speed
- Valuable detailed call tracing/debugging built-in
  Notes: 
  
  
Similar in concept to an ODBC Driver Manager
DBI provided methods, functions and tools etc
	help ensure conformant implementations
	and efficient implementations
	and more automatic support for new features