Easy to access -
Runs over the internet, in any popular browser. So very easy for users to start.
Easy to use - Has very compact interface, shows all variables in small space.
Lets user concentrate on one task at a time.
So very easy for users to do analyses.
Flexible and powerful - Using AJAX technology, runs like a desktop program.
Lets user make ICD sets, area sets, race sets, any age groups, etc.
Lets you do fast and easy recodes on the fly.
So gives users full flexibility and power.