Η επίδραση των τεχνολογιών πληροφορικής και επικοινωνιών στην επιστήμη των υπηρεσιών. Η στάση των καταναλωτών απέναντι στις ηλεκτρονικές υπηρεσίες πολιτισμού, τουρισμού, ενημέρωσης και ψυχαγωγίας ; The impact of information and communication technologies in service science. Consumers’ attitude towards culture, tourism, information, entertainment and communication e-services.

The high level of investigative activity during the last 25 years into information systems and information technology acceptance and diffusion, is related to individual consumer decisions of information and communication technologies acceptance and adoption. As a consequence, previous research activity was analyzed along a number of dimensions including units of analysis, research paradigms, methodologies and methods, theories and theoretical constructs and technologies/contexts that explain ones decision to use information and communication technologies. In the literature of information systems, the relationship among beliefs, attitude, intention to use and usage behavior, which are typically based in the initial decision to use or reject a technology, is being evidenced (Venkatesh et al., 2003). To date, the high level of investigated activity that studies acceptance and adoption factors of technology based services has provided many adoption, as well as rejection, predictors of them by consumers. However, there is lacking investigative activity concerning the factors that affect technology based services acceptance and adoption within the Greek culture, as well as the different influence degrees of them to the various e-service industries. The present research investigates these two issues primarily by replicating and adjusting fundamental models of technology acceptance to Greek consumers and then by comparing four different e-service industries. At the end, a new technology acceptance and adoption model is being proposed. The thesis starts with an extensive literature review to the existing technology acceptance models, by providing the necessary information for understanding the structural factors of each one. Then, five quantitative and one qualitative field researches are designed and implemented, in order to answers the research questions.The present thesis offers gradual knowledge to the literature of e-services acceptance and adoption, by answering questions of both theoretical and practical ...