Why is it important to keep AAC materials updated and relevant?

Keeping AAC materials updated and relevant is essential to accurately reflect the user's current communication needs. As individuals progress and their circumstances, preferences, or communication goals change, it is vital that the AAC system evolves to meet these new demands. This ensures that users can effectively express themselves, engage with their environment, and communicate with others in a way that feels natural and relevant to their current life situation. When AAC materials are aligned with the user's present needs, it enhances their ability to communicate efficiently and authentically.

While cost-effectiveness is important (as mentioned in another option), the primary concern should be ensuring that the AAC device effectively serves the user's current communication context. Limiting the number of symbols or avoiding outdated technology does have their place in AAC development, but they do not directly address the need for the materials to reflect and support the user's ongoing communication requirements.