Object Sketch Pad Object Sketch Pad is a CASE tool which supports the Booch notation for object oriented program design. Object Sketch Pad only runs under Microsoft Windows. To install this program : 1) Create a directory for the files. 2) Run the program osp_1-0s.exe. (This is a self-extracting archive.) 3) Run the program osp.exe. This is the actual program. 4) If you like, you may add the osp.exe icon to a Program Manger group using the standard Windows procedure. Registration information is in the windows help file: osp.hlp.