The interface should meet the following requirements:

• Enable improvement of sending and receiving speed
• Include a database of texts most commonly used for learning
• Feature both static and smooth animations of hand positioning changes for selected words
• Utilize 3D technology to present the movements of the operator using semaphore flags
• Support learning of individual letters, special characters, and words based on specified groups
• It should include 3 training modes:
  • Learning mode
  • Motion sensor mode
  • Exam mode

The learning mode should include the ability to select letters or whole words and the ability to choose their order:

• Alphabetically divided into 3 groups
• Randomly within those groups

Motion sensor mode should verify the accuracy of displayed characters. It should allow you to select a group of letters or words without having to use a mouse or keyboard (gestures). The motion sensor should verify the accuracy of displayed characters as accurately as possible.

Exam mode should be time-limited and allow:

• Selection of word groups
• Choice between sending or receiving
• Selection of question quantity
• Selection of presentation speed for signs