Abstract:

Cloud computing dominates the future of enterprise applications,which has become a consensus of the industry,and shifting to cloud services becomes a tremendous change in enterprise applications model.Enterprise users have to adopt suitable cloud solutions,and need assessment tools for assessing the risk of cloud application service adoption,while the application service providers should provide satisfactory cloud application service.Therefore,research on the influential factors of cloud application service, user acceptance is of great value in both theoretical and practical fields. Based on technology acceptance model (TAM) and other related theories,we first set up a cloud application service technology acceptance model (CAS-TAM) and integrate the fuzzy decision making trial and evaluation laboratory (DEMATEL) method to analyze the CAS-TAM and the related constructs.We then examine the constructs in CAS-TAM and explore the core influencing factors.We find that perceived usefulness (PU), application service quality (ASQ), social influence (SI) are the key impact factors for the case study to the enterprise user adoption,and reliability (ASQ-RL), responsiveness (ASQ-RP), use & maintain ability (PBCU&M), ease of use (ASQ-EOU), social influence (SI) are the key causes which have  critical impact on the adoption of cloud application service.

Key words: cloud application service;technology acceptance model;DEMATEL;application service quality