(Pronounced exo-tickle) An open source object-oriented scripting language that is based on OTcl but adds several new concepts. XOTcl was intended to develop language support for the implementation of design patterns, where design patterns can be added or removed at runtime.
OTcl and TclCL OTcl, short for MIT Object Tcl, is an extension to Tcl/Tk for object-oriented programming.
XOTcl - Brief Description of XOTcl and ActiWeb The basic object system of XOTcl is adopted from OTcl. The object system enables us to define objects, classes, and meta-classes. Classes are special objects with the purpose of managing other objects.