You mostly described user stories, use cases, and diagrams — was that mainly what the KZR consisted of?

Yes, the main part of the set of tasks and requirements (KZR) indeed consisted of descriptions of user stories, use cases, and diagrams. This allowed for a clear definition of functional requirements and usage scenarios.

User stories described the needs of end-users from a business perspective, which helped the development team understand the value each function brings.

Use cases detailed the sequence of actions and interactions between the user and the system, facilitating design and testing.

Diagrams (such as sequence diagrams or class diagrams) visualized the architecture and logic of operation, helping to align understanding among analysts, developers, and clients.

This approach ensured transparency of requirements and reduced the risks of misunderstandings during implementation.