Error handling

When the errors occur in a voice application, the errors must be handled properly and the application must resume where it left off. Let's look at different types of errors in VUIs one at a time. First, imagine that you are talking to your friend and suddenly your friend stops talking in the middle of a sentence. Do you say nothing and wait for hours for your friend to talk and reengage in the conversation? Most likely, you would ask your friend if they are OK and try to reengage them in the conversation. The same is true for VUIs. If no response is provided in a given time frame, the voice application will need to recover and will try to reengage with the user. What if the voice application cannot understand the user's intent? In this case, the application would need to re-ask the question and ensure it doesn't blame the user in any way for any kind of error. Lastly, the user might continuously make the same mistakes in an attempt to provide information. In such cases, every new attempt to get the correct information from the user, the application needs to provide more detailed instruction as to how in hopes that the user can provide the correct intent.