What information does each OBIS screen typically start and end with?

The correct answer indicates that each OBIS (Optical Barcode Information System) screen starts and ends with two alpha characters followed by two numeric characters. This format is essential in maintaining consistency and clarity in the data management process within correctional systems.

Using this specific format allows for a structured method of categorizing and identifying information quickly, which is crucial for both security and operational efficiency in correctional and probation settings. Each screen's structure ensures that personnel can easily recognize and process the information, reducing the likelihood of errors during data entry or retrieval.

This format also aligns with standard coding practices used in various information systems, where starting with letters may designate a specific category or type of data, while the following numeric characters can indicate a unique identifier or status. Such a system promotes effective communication among staff and enhances the overall functionality of data management tools used by correctional officers and probation personnel.