The Process Cycle

A single execution of an entire sequence of frames, images, event points, and children for one record in the process control file is referred to as a process cycle. For example, assume you created a process with a single frame, a single image, and one automatic child. In addition, you defined statements in Start of Frame and End of Frame, Pre-Display and Option Intercept, and Pre-Invocation and Post Invocation event points. For each record, the process cycle consists of the following APPX actions:

• Read a record in the process control file.
• Invoke the Start of Frame event point.
• Perform image processing.
• Invoke the Pre-Display event point.
• Display the image to the screen.
• (User completes the entry.)
• Invoke the Option Intercept event point.
• Invoke the End of Frame event point.
• Perform automatic child processing.
• Invoke the Pre-Invocation event point.
• Perform processing as specified for the child process.
• Invoke the Post Invocation event point.