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Stages of HMI

                 There are 4 stages of HMI. This involves the activities of intention, selection, execution and evaluation.

                    Intention: This is the first stage of HMI. In this stage, the user first sets the goal for interaction.
                   And then perform actions using a system to reach the goal. This is a mental stage.
                    Selection: This stage is also defined as the selection of action. In this stage, order of actions is
                   set. This means that the user defines how the interaction is going to take place.
                    Execution: Once the course of action is set, it moves on to execution. In this stage, the action is
                   performed.
                    Evaluation: This is very important stage in HMI, as the success of the interaction depends on the
                   feedback.
                 We can understand these stages in simple terms through an example of celebration of a birthday
                 party. Neha has an intent to celebrate her birthday party. She decides to celebrate it in a hotel. This
                 stage is called intention. She selects a hotel and decides on a few friends and relatives with whom
                 she would like to share her day. This is the selection stage. Finally, she picks up her friends and
                 relatives in a car and drives to reach the hotel. She orders the meal. This is called the execution
                 stage. Could she celebrate her birthday? Were her friends happy? Did the meal served to them reach
                 their level of expectation? Asking and answering these questions are termed as evaluation.
                                                                                     Information Literacy
                            Quest                                                    Technology Literacy


                      1. Name any 2 stages of HMI.


                      2. Explain execution stage.




                 Types of HMI

                 We  have  learned  about  the  HMI  and  its  stages.  Now,  lets  learn  about  the  different  types  of
                 Human-Machine Interaction in this section.
                 Menu Driven Interface

                 This interface lets its users to interact using screens or menus. It is a very common way of interaction.
                 You switch between menus to reach your goal.




















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