Extensible, modular, object-oriented architecture. Source compatible over major hardware, operating-system and Lisp platforms. Advanced condition handling architecture. Working examples to get you started. Toolkit of Web abstractions.
Clean abstractions facilitate security audits.
Rapid prototyping for research, product or protocol development. Used in top research laboratories around the world. Constraint-Guided Web Walker . Disconnected operation on Apple PowerBooks. Proven in major production systems.