Design Problem Human Computer Interaction â€Myassignmenthelp.Com

Question: Discuss About The Design Problem Human Computer Interaction? Answer: Introducation Human factor is important in the functioning of the software device or the hardware system and every stage of human interaction has a direct relation to the proper functioning of the system. Wrong inputs and mishandling can lead to serious disasters rather than enabling the automated computation. Very often we get the examples of human interaction failure and the disasters that happen due to it. The Human interaction concept The efficiency of a software depends upon it data retention capacity, right input, timely human interface, memorability of the software and data retrieval and reading capacity. The accuracy and precision are the USPs on which the performance depends. Any mismatch between the users intention and the derived signals or the attained purpose will not only lead to an anomaly but a disaster. We give an example to illustrate. The top human factors in design which can face these disasters are alarm of factory or mine or fire, control rooms, pilots cockpit, ergonomics and general failure. In Japan the evolution of audio frequency track circuit enables controlling the train signal via radio-waves. This system generally showed a stable operation enabling the train to track a radio wave signal and pass through label crossing. But the monitoring of the control room depends on human interface where the checking of signals and the label crossing is monitored and manipulated by human interface. Because of lack of human interface a major accident occurred and thousands of lives paid the casualty cost. The loss of lives caused the irrecoverable loss and a phobia among passengers which lurked for long time[1]. The disaster can be avoided by following the train control system prevalent in many countries through the Unified Train control system where the user interface is the minimum and there is an automated block function in case of any many mal-signalling. The basis of these assured system are interlocking functions and block functions. These helps prevent train-to-train and near end collisions. Morbid lessons from the past has helped with the modernization of introducing block and interlocking of the system so that accidents can be avoided and precious lives saved[2]. The development of the modern automated signaling has put to use the following aspects of design analysis: These are the software analysis, the basic human interface evaluation with its flaws and failures, the time gap analysis between incident and operation, heuristic evaluations, trials and usability tests, understanding the user need to fit it with the design concept, understanding user operational capabilities, the complexity of the problem and the user interface and narrowing the bridge between the expected result and the outcome result. From all this the UTS process of control for the train has emerged. In UTS system the hierarchical train control processor is located at the center and has interlocking and logical processing devices. The ATP and the system together help in the formation of the block functional layer. Functions like train tracking are included with a simple logical circuit working. The below picture give a picture of the type of workflow. The UTCS has diminished the dependencies on human interface and has double checked it with an automated control and locking system making it system proof. It has taken the consideration that human interaction are fallible and hence more advanced modern interface is required to complete the task of automation of the controlling system of train . All explained still the circuit needs human monitoring and human interface in the designing for running with efficacy. Examples are that the interlocking system should be designed in such a way that there shall be no failure in receiving the alarm signal that is data deciphering and interlocking when required that is task performing. The automation should be long lasting and reliable and should require low maintenance or upkeep otherwise there will be frequent halts and disasters. The uniformity in receiving the signal and interlocking should have the same same pace and frequency so that in case of any failure ever the operator can guess the incoming disaster and take precautionary measures. Summarizing from the above example we see that human interaction in design plays an important role in the performance of daily chores of the modern world which moves with pace and at the same time shortcomings in human interface can generate disastrous problems which cannot be measured not paid with any damage compensation and can cause great loss. Thus human interface is very necessary and meticulous aspect in system design and the control of the same. References Anon, (2017). [online] Available at: https://www.crcpress.com/Human-Computer-Interaction-Design-Issues-Solutions-and-Applications/Sea [Accessed 10 Sep. 2017]. Anon, (2017). [online] Available at: https://www.humtec.rwth-aachen.de/files/coma_10_ziefle_jakobAnswer:17). [online] Available at: https://www.iaeng.org/publication/WCECS2009/WCECS2009_pp236-241.pdf [Accessed 10 Sep. 2017]. Overview of HCI Design and Implementation. [online] Available at: https://www.cs.cmu.edu/~bam/uicourse/special/ [Accessed 10 Sep. 2017]. Anon, (2017). [online] Available at: https://www.interaction-design.org/literature/book/the-encyclopedia-of-human-computer-interaction-2nd [Accessed 10 Sep. 2017]. Anon, ( November 23, 2007) Design Problem in Human Computer Interaction https://telearn.archives-ouvertes.fr/hal/00190068/document [1]Available at: https://www.crcpress.com/Human-Computer-Interaction-Design-Issues-Solutions-and-Applications/Sea [Accessed 10 Sep. 2017]] [2]Available at: https://www.crcpress.com/Human-Computer-Interaction-Design-Issues-Solutions-and-Applications/Sea [Accessed 10 Sep. 2017] [3] Available at: https://www.cs.cmu.edu/~bam/uicourse/special/ [Accessed 10 Sep. 2017] [4] Available at: https://www.cs.cmu.edu/~bam/uicourse/special/ [Accessed 10 Sep. 2017]