Human Computer Interaction for Commercial Applications Essay

Human Computer Interaction for Commercial Applications - Essay Example The super-sensitivity of the touch proves a real mess for the users to handle the phone properly. The white box in the diagram shows the problematic, extra sensitive screen Whether it is being used or not, it automatically initiates different functions that are accessible from the external touch screen display with just mere friction, making it difficult for the users to receive important calls and messages. Environment Surrounding the System The device MotoRazr2 is basically a mobile phone made for communication. It is a common mobile phone used primarily in the United States of America. It contains basic functionalities such as calls, messages, video streaming, Internet, Bluetooth, camera and external memory. It is used by common people who are average mobile users and use their mobile phones just for making calls, sending messages and for some entertainment. Therefore, it is used socially by an average person who does not have a keen interest in utilizing all the functionalities o f the mobile phone. Therefore, these mobiles are used roughly by users and such rough usage causes the UI design with the flaw of extra sensitivity to fail completely. The external display touch system that was the USP of this mobile phone proves to be a stone in the path of success. Jargons No technical jargons are used in the system literature except for common HCI terminologies in describing the system PART 2: THE USERS List of User Groups Following are the potential users of the device/mobile MotoRazr2: 1. Lower class businessmen 2. Students 3. Freelancers 4. Salary based personnel Characteristics of Two Contrasting Groups The two highly contrasting groups that have a significant level of distinct priorities are lower class businessmen and students. These lower class businessmen have more office work to do than to enjoy entertainment functionalities of the mobile phone in question. However, the user group of students has considerably significant usage of the entertainment facili ties of MotoRazr2. The characteristics of a lower class businessmen group are as follows: These businessmen do not have enough time to explore the functionalities of the device Due to lack of time, they have comparatively lesser interaction with the device They are careless about their device and therefore, have a disadvantage of extra sensitive touch display The characteristics of the user group of students are as follows: Students have relatively more free time than these businessmen, hence they explore the functionalities of the device thoroughly Because of their rough usage of device and frequent interaction with it, students have faced problems such as auto triggering of unwanted behavior because of the poor UI design PERSONAS Businessmen Group: John is a new technology entrepreneur. He runs a small technology startup and deals in web designing and development. He normally takes projects from his local clients; therefore, he is mostly discussing his projects on call. He barely has time to text anyone and he needs to save contact details on the go. John normally loads his cell phone with credit, but his daughter, who is a toddler, is greatly fascinated by the external display of the phone. She always uses her thumb to turn its light on and off. She also likes to play with the flap and press random key combinations. John is always amazed by the fact that his credits run out at night time. John cannot, therefore, make important calls at night as he does not have enough credit