Which principle is violated in the structure of the SRS document - The process of requirement changes in the SRS is not defined - Responsible persons for functional blocks are absent - There are no sections for future modifications of the SRS - Vague formulations in the SRS requirements - The principle of clear separation of functional and non-functional requirements is violated - Non-compliance of the SRS with the IEEE 830 standard

In the listed problems of the SRS (Software Requirements Specification) document structure, several principles are violated, but the key one is the lack of clarity and structured requirements, as well as non-compliance with IEEE 830 standard.

Main violations:

• Lack of change management process for requirements — violates the change management principle, which is critical for maintaining the document's relevance.
• Unclear formulation of requirements — violate the clarity and unambiguity principle, which can lead to incorrect implementation.
• Lack of separation between functional and non-functional requirements — violates the principle of structuring requirements for ease of understanding and implementation.
• Absence of responsible persons for functional blocks — violates the responsibility distribution principle, complicating communication and control.
• Lack of sections for future improvements — reduces the document's flexibility and expandability.
• Non-compliance with IEEE 830 standard — the standard describes the structure and content of SRS; violation leads to incompleteness and poor quality of the document.

Thus, the main violated principle in the SRS structure is the principle of clarity, structuredness, and manageability of requirements, as well as compliance with established standards (IEEE 830). This leads to reduced document quality and risks during the development process.