Assignment 2: Menu SelectionDespite being a fairly old technology, menu-driven interfaces are very common in user interface design. Menu-driven interfaces consist of a series of screens which are...

User Dialogue Strategies
A user dialogue system is a system which has a sole purpose of establishing conversation with humans. A dialogue system comprises textual mode, speech, images, graphics to communicate over output and input channel. Generally, a dialogue system consists of the following dialogue strategy components:
· Input Recognition- This mechanism converts the dialogues into text using speech and hand-writing recognizer. The first one is known as automatic speech recognition (ASR) or speech to text (STT). The devices that enable input recognition include touchscreens, mouse, microphones, keyboards and remote-control devices. The second one is handwritten Text Recognition (HWT) in which intelligible text written in hand over paper, images, etc. can be interpreted.
· Natural Language Understanding- It uses semantic theory to interpret languages. It further uses a parser to convert the interpretation into meaningful representations. The text is analyzed by appropriate name identification and using a semantic parser. The parser analyses the text using standard language (grammar) rules on the input text.
· Dialogue Management- The state of user dialogue and flow of conversation is managed in dialogue management which may require input from task manager (Diane J. Litman, 2002). This is accomplished with a dialogue manager. It converts the voice input to a system-specific semantic representation through Natural Language Processing Unit. The dialogue manager connects with task manager to acquire knowledge on the specific task.
· Output Generation- This strategy transforms the structured language into natural language understandable by the user. It may produce content for organizations to automate certain custom content for various applications used by the customers of the organization. Subsequently, layout manager is used to graphical control items to define component layouts. Once the output is generated and ready to be delivered, output renderer. This element comprises text-to-speech engine (TTS), a talking head or a comprehensive system as a robot in order to provide output. TTS...