For small devices like the PDAs and mobile phones, formulation of relational database queries is not as simple as using conventional devices such as the personal computers and laptops. Due to the restricted size and r...For small devices like the PDAs and mobile phones, formulation of relational database queries is not as simple as using conventional devices such as the personal computers and laptops. Due to the restricted size and resources of these smaller devices, current works mostly limit the queries that can be posed by users by having them predetermined by the developers. This limits the capability of these devices in supporting robust queries. Hence, this paper proposes a universal relation based database querying language which is targeted for small devices. The language allows formulation of relational database queries that uses minimal query terms. The formulation of the language and its structure will be described and usability test results will be presented to support the effectiveness of the language.展开更多
A netbook, Internet-enabled and with extra portability, has been fast-growing in the domain of information technology （IT） in recent years. Compared with standardized laptops or desktop computers, a netbook＇s key f...A netbook, Internet-enabled and with extra portability, has been fast-growing in the domain of information technology （IT） in recent years. Compared with standardized laptops or desktop computers, a netbook＇s key features include a shrunken-down and lightweight laptop that is ＂easy to learn, easy to work, and easy to play＂. This research is to empirically test the influence of user perceptions of this new form of IT （usability, compatibility and relative advantage） associated with playfulness and attitude toward purchase intention. In addition, personal innovativeness of an individual plays an important role in the antecedents of such perceptions. A test of this model, two-stage approach, confirmatory factor analysis （CFA） and structural equation model （SEM） are employed to validate the casual model from among 227 usable respondents who have been using a laptop for more than two years. Results showed support for eleven of twelve research hypotheses, and one new path linking personal innovativeness with attitude toward using is found to be non-siznificant.展开更多
文摘For small devices like the PDAs and mobile phones, formulation of relational database queries is not as simple as using conventional devices such as the personal computers and laptops. Due to the restricted size and resources of these smaller devices, current works mostly limit the queries that can be posed by users by having them predetermined by the developers. This limits the capability of these devices in supporting robust queries. Hence, this paper proposes a universal relation based database querying language which is targeted for small devices. The language allows formulation of relational database queries that uses minimal query terms. The formulation of the language and its structure will be described and usability test results will be presented to support the effectiveness of the language.
文摘A netbook, Internet-enabled and with extra portability, has been fast-growing in the domain of information technology （IT） in recent years. Compared with standardized laptops or desktop computers, a netbook＇s key features include a shrunken-down and lightweight laptop that is ＂easy to learn, easy to work, and easy to play＂. This research is to empirically test the influence of user perceptions of this new form of IT （usability, compatibility and relative advantage） associated with playfulness and attitude toward purchase intention. In addition, personal innovativeness of an individual plays an important role in the antecedents of such perceptions. A test of this model, two-stage approach, confirmatory factor analysis （CFA） and structural equation model （SEM） are employed to validate the casual model from among 227 usable respondents who have been using a laptop for more than two years. Results showed support for eleven of twelve research hypotheses, and one new path linking personal innovativeness with attitude toward using is found to be non-siznificant.
