Collaborative end-user computing with snowball

Snowball is a visual tool that helps analyze, visualize and visually manipulate hierarchical structures in Squeak. Beyond its original aim of assisting developers to implement systems quicker, recent additions to Snowball can make it a viable collaborative tool for end-users as well. This paper focuses on innovations of Snowball that aim to make it an easy to use computational tool for end-users of various backgrounds. End-user computing is done via visual computation trees, which can be linked across the Internet.