Development of instrument for assessing information systems continuance use

Abstract

Information systems (IS) or computer based systems plays a critical role in an organization's success. IS can facilitate organization through several courses of information management including gathering, processing and disseminating information. However, lack of research in continuance use of IS poses an obstacle in IS usage in an organization. Previous studies have examined continuance intention using the Expectation Confirmation Model (ECM) as it provides a basis of investigating IS continuance. ECM employed mainly the three factors or constructs to explain behavioural intention, namely confirmation, perceived usefulness, and satisfaction. However, the expansion in today's business requires a further integration with other constructs such as experience, self-efficacy, task technology fit, utilization and perceived support. Thus, this paper proposes a new comprehensive IS continuance model through the extension of ECM by integrating new constructs from other related theories which include Task-Technology Fit (TTF), Social Cognitive Theory (SCT), Social Support Theory (SST), and Unified Theory of Acceptance and Use of Technology (UTAUT). The items are grouped into nine constructs modified to suit the context of the study. The proposed model and measurement items will provide useful knowledge for exploring ISC research.