Metamessage

In Semiotic Engineering theory, the overarching one-way message that a designer sends to users through the system's interface, communicating who the system is for, what it can do, how to use it, and why it was designed that way. The metamessage is encoded through interface signs (metalinguistic, static, and dynamic) and is received indirectly by users as they interact with the system. When a screen reader mediates the interaction, it acts as a translator of this metamessage, and the translated version may differ significantly from the original, causing accessibility and communicability problems for visually impaired users.