A research/educational tool for experimenting with array data dependence tests and reordering transformations. It works with a language tiny, which does not have procedures, goto's, pointers, or other features that complicate dependence testing. Michael Wolfe's original tiny has been extended substantially by William Pugh et al. at the University of Maryland. Version 3.0 (Dec 12th, 1992) includes a programming environment, dependence tester, tests translator (Fortran->tiny), documentation, and technical reports. It should run on any Unix system.