Ada 95 - Structured programming

The document discusses software system organization and variant programming. It presents an example of designing an alert system for an industrial plant using variant records and parameterized types. The alert system example demonstrates how to add new functionalities without modifying existing code, but that adding new data variants requires modifying the specification and all routines. Functionality-oriented organization is preferable when data types are known upfront and most changes will be adding new functionalities rather than new data variants.