TAM model Thesis Example | Topics and Well Written Essays - 4750 words

TAM model - Thesis Example The concept aims to explain the aspects that facilitate the comprehension of the level of acceptance that can be shown by the user for any specific technology. There are basically four types of technology acceptance models that have evolved with the passage of the years: TAM: TAM is the most commonly applied model for evaluating the level of acceptance and usage by a user. Venkatesh stated that TAM was initially devised from Theory of Reasoned Action (TRA) which was proposed by Ajzen and Fishbein in 1975 [86]. TAM is mainly based on two aspects that are directed towards evaluating the intention of a user to use a certain system or technology; perceived ease of use and perceived usefulness. Advantage: Venkatesh further explained the TAM model and stated that there exists a simple relation between these two factors [86]. Perceived ease of usage will be influenced by perceived usefulness since an easier technology will prove to be more useful for the user. He defined these two main aspe cts and stated the following definitions: Perceived Ease of Use: It is the perception of a technology from the perspective of the user. For example, the perception will measure the easiness of the functions that the system or technology has to offer; this easiness will result in lesser efforts to use the technology. Perceived Usefulness: It is the degree of benefits that are perceived to be attained from the usage of any technology. For example, a user will evaluate the e-government service and make a perceptiwon about the advantages that can be attained by him. The following figure describes the TAM model: Figure: TAM Model [85] Porter and Donthu stated that TAM can be adopted when research costs are required to be minimal but effective results need to be attained [92]. It explains greater degree of variance when the user’s attitude is required to be investigated. Disadvantage: This model was devoid of reflecting the demographic differences among the users and tried to measu re the level of acceptance while assuming constant profiles related to gender, age etc. Limitations: This model failed to address some of the perceptions of barriers of usage of computer technology [92]. TAM 2: TAM 2 was proposed by Venkatesh and Davis (2000) to overcome the limitations in the previous model of TAM [85]. Chuttur stated that their efforts (to propose a new model in place of the existing one) were initiated to address the limitations that were being witnessed in TAM regarding the explanation of how a user perceives something as useful or less appealing [85]. In trying to make the model more comprehensive, some new variables were proposed to attain effective reasoning regarding the preference of any system or technology. Chuttur also stated that in order to test the effectiveness of the newly proposed model, Venkatesh and Davis conducted a survey in which the participants were asked to provide their feedback regarding the usage of four systems; two of them were volunta ry while the other two were mandatory [85]. The following model was proposed for extending TAM and conducting the survey: Figure: TAM 2 attributes [85] The survey concluded that the model provided satisfactory results for mandatory, as well as voluntary technology and systems. However, it was also revealed that subjective norm did not play a role in

The Bombing of Hiroshima and Nagasaki Research Paper

The Bombing of Hiroshima and Nagasaki - Research Paper Example Hiroshima underwent the massacre due to the weapon titled ‘Little Boy’ on the 6th of August whereas the ‘Fat Man’ was dropped on Nagasaki three days later. In order to let peace prevail after, Japan sent an instrument of surrender after almost a week of the bombings which marked the end of the Second World War. Prior to the surrender of the Nazi army in Germany, the Allies of World War II had already made plans to go ahead with Operation Downfall which was supposed to be the invasion of Japan. In 1945 when Germany was defeated, the Allies turned their attention towards Japan. Under the guidance of Major General Leslie Groves, U.S Army Corps of Engineers, the first atomic bombs were finally designed. Even though preparations were going on since 1939, fearing the Nazi army to build worse nuclear weapons kept the Allies in check and made them not reveal their weaponry. Both the Little Boy and the Fat Man were implosion weapons designed as gun type fission weapo ns; Little Boy was made of a rare isotope of uranium-235 and the Fat Man formed its base in plutonium-239. On receiving the Potsdam Declaration, the Japanese government decided to ignore it or kill it by silence and despite being given an ultimatum to surrender and told by the Allies that the consequences of non compliance with the same would result in the complete destruction of the Japanese Armed Forces as well as proper devastation of Japan on the whole, a clear rejection of the Declaration was provided by the then Prime Minister, Kantaro Suzuki. Hiroshima was of prime importance to the Japanese because its strategic location made the city a backbone for developing industry, trade and commerce. The city also had attached towards itself a great amount of military significance. The Allies had decided that in case the bombing of Hiroshima did not go as planned, they would target the cities of Kokura and Nagasaki alternately. The point which was aimed from the craft, Enola Gay, (whic h was the craft used to drop the bomb on Hiroshima), was the Aioi Bridge however, it missed and landed on the Shima Surgical Clinic, blasting at least 12km2 of the city and spreading fire everywhere. 30% of the population of the city at the time was killed immediately, with the effects ranging on another million or so that were riddled with the gases and fumes and burns due to the fire of the blast. Many people were affected by cancer and leukaemia due to the after effects of the blasts, which led to their death eventually as well. The Hiroshima Genbaku Dome is one of the few known surviving ruins post the attacks and in 1996; it was termed as a World Heritage Site by UNESCO which followed repeal from countries like US and China. Nagasaki was one of the largest ports that Japan had and thus it was vital to the country’s growth and development because of its connection with overseas routes which were especially of use during the time of the war in order to import and export ma terials, keep an eye on invading foreigners, as well as produce and distribute military equipment