Security Case Study Example | Topics and Well Written Essays - 1500 words

Security - Case Study Example Computers had literally made the task of computing very fast and ultra accurate; people expect results within minutes or seconds. Scientific, medical, and technological progress had been achieved with the use of all the computer technologies currently available, accelerating human advancement by several degrees if compared to the prior centuries and millennia before the advent of computers. Other areas of human endeavors have likewise benefited from this computer-related development such as in the business and industry sectors, in the telecommunications, banking, trading and commerce sectors as well as in almost all aspects of human life. Today, there is no escaping the fact of interacting with computer-related equipment as people go along their lives in their daily activities. Computers are used in various ways wherein people may not be aware of, like in a building with a computer-controlled air conditioning system, using an elevator or an escalator, trying to get in touch with thei r friends, acquaintances, and relatives through social media sites, to buy a product or service on-line through electronic commerce (e-commerce), and get the news or entertainment from the Internet. This paper focuses on one such aspect, which is the human-computer interface (HCI) that is at the basic level by which people interact with computers. Discussion The field of study concerning the use of computers by humans is called as the human-computer interface (HCI) or also called alternatively as human-computer interactions (HCI). The basic premise of HCI is to study the optimal design of the interaction between people (the users) and the computers or machines they are using in order to give the maximum benefit and likewise avoid unexpected problems between man and machine. HCI is a multidisciplinary approach that utilizes several fields such as engineering design, architecture, computer graphics, the operating systems, and the software programming (confidentiality, integrity, and a vailability or CIA). It is supplemented by the human side of this knowledge such as linguistics, communication theories, cognitive psychology, the social sciences, and human factors like logic, ease of use, user satisfaction, memory recall, attention span, and user experience that contribute to desired results. There are a good number of engineering designs to observe as a guide when designing a human-computer interface (HCI) but it can be reduced to the basic principles which are a focus on the user, emphasis on the task to be performed, and actually measuring the real uses of this interface based on several or repeated simulations to detect any deficiencies and eliminate these. The designer or engineer of the HCI must firstly determine who will be the eventual users of the HCI, so that the final design will be suited for them. Secondly, the designer must know the tasks to be performed using the computer interface, specifically defining these tasks in detail, and also how often the se tasks are to be performed within the day, or during a certain work period. This will hopefully help establish the parameters to be used in the HCI design, using empirical ways or methods to determine the required benchmarks or performance levels (Sarmento, 2005). In order to be able to properly analyze the design issues of the new cash register