Overview:[PM106.ZIP]
This is a PKZIP v2.04g archive containing a PowerPoint presentation of David Van Camp's presentation at the PowerSoft User's Meeting and Training Conference in Orlando, FL, August 1996, PM106: Applying Design Patterns to PowerBuilder 5 Development. Also, included is example PB source for the implementation of an unlimited undo/redo datawindow stack, as demonstrated in this presentation. This presentation fundamentally illustrates an approach to teaching pattern-directed design with a specific emphasis on PowerBuilder. However, the basic approach could be applied to any OO language.Much of the last 1/3 or so presents a pure-PowerBuilder solution to providing shared, asyncronous objects using distributed powerbuilder (DPB). Most of the early 2/3's however is a rather generic demonstration of pattern-directed design. I'd appreciate any comments or (constructive) critisism so that I can make this better in future presentations.