What is the main problem of this analytical model - Incorrect estimation of task completion times - Insufficient testing during prototyping - Lack of validation of requirements with users - Lack of expectation alignment between parties - Absence of a unified documentation system - Vague requirements cause frequent project changes

The main problem of this analytical model is the lack of alignment of expectations between the parties.

Without clear agreement on requirements and expectations from the customer, users, and the development team, misunderstandings often occur, leading to:

• Incorrect estimation of task completion times,
• Frequent changes in the project,
• Insufficient validation and testing,
• Lack of a unified documentation system.

All these points are consequences of the absence of effective communication and early-stage agreement. Therefore, establishing transparent dialogue and aligning requirements with users and stakeholders is key.