Although this study strives to be perfect, but because of objective factors, the
following limitations still exist: (1) The design of questionnaire mainly uses the tables of UTAUT model and then revises & tests the tables so as to discuss the users’ behavioral model towards the acceptance of 3G mobile telecommunication services.
When the follow-up researchers discuss the same subject, they can think of adopting the theories of different technology acceptance and weighing models, in order to undertake thestudy ofacceptanceofthe user’sbehavioralmodeltowards3G mobile telecommunication services further. (2) In sample selection, because of limited manpower, the questionnaires are distributed to the consumers who have used the 3G services of each telecommunication subscriber, and also this study mainly distributes network questionnaire. Because the main users of Internet are mostly students, the result of study may be unable to be completely applicable to all groups. (3) Because this study does not focus on the primitive technology acceptance model to undertake discussion, it is impossible to compare the strengths and weaknesses between the explanatory powers of the model that is constructed by this study and primitive models. But it is sure that the model that this study constructed still has certain explanatory power towards the use intention of mobile value-added services, and the newly added external variables also have positive significant effect.
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