There are several key ideas that makes Kleisli a successful system:
The system is currently deployed mainly in the bioinformatics area. It is the first system that cracked many of the so-called ``impossible queries'' in the Human Genome Project in 1993.
In spite of Kleisli's sophistication, the source codes size of its core is remarkably small at 28k lines. I attribute this mainly to the fact that Kleisli is implemented on top of a functional programming system---Standard ML of New Jersey.
--- Limsoon Wong
Limsoon Wong Kent Ridge Digital Labs 21 Heng Mui Keng Terrace Singapore 119613 Email: firstname.lastname@example.org