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Convection Reflow System GUI Reconstruction
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PSA reconstructed the reflow software program's GUI (Graphical User Interface) and developed an IPC (Inter Process Communication) component to decouple the GUI from the control system.
The IPC component handled the message communication between the control system and the GUI. The design of the IPC used a concept called Notifiers. Notifiers connect objects indirectly, replacing pointers and direct functions calls. Because they're anonymous, notifiers reveal nothing about the implementation, interface, or even the existence of the connected objects, leaving them independent of one another. By reducing IPC dependencies this reduced application complexity.