Generally, CALL creates products in response to either of these events

A problem is identified, and material has to be created to solve the problem or prevent it from happening again.

• A disaster occurs
• A technique for doing something is overly time-consuming
• Some method is inefficient
• A procedure is difficult / confusing
• Unnecessary risks are taken
• Reoccurring dilemmas

A need for information is defined. This includes any number of topics in which people need to be informed about, either immediately or for future reference.

• Technical specifications
• Operational support
• Notices / Announcements
• Security measures
• Checklists / tasks