A transparent interface reveals some of the inner workings of a system. Transparency is important in computer systems that must engender trust, that teach, or that must rely on users to correct their mistakes.  Steve Tanimoto presents a framework for designing software systems to be transparent, and several methods are described for achieving important components of transparency. Examples are presented that illustrate transparency in (a) a system for teaching programming concepts, (b) image processing, and (c) online educational assessment. From the Series:CSE Colloquia - 2005