Extending the two-stage information systems continuance model: Incorporating UTAUT predictors and the role of context

Viswanath Venkatesh, James Y.L. Thong, Frank K.Y. Chan, Paul Jen Hwa Hu, Susan A. Brown

Research output: Contribution to journalArticlepeer-review

591 Scopus citations


This study presents two extensions to the two-stage expectation-confirmation theory of information systems (IS) continuance. First, we expand the belief set from perceived usefulness in the original IS continuance model to include three additional predictors identified in the unified theory of acceptance and use of technology, namely effort expectancy, social influence and facilitating conditions. Second, we ground the IS continuance model in the context of transactional systems that involve transmission of personal and sensitive information and include trust as a key contextual belief in the model. To test the expanded IS continuance model, we conducted a longitudinal field study of 3159 Hong Kong citizens across two electronic government (e-government) technologies that enable citizens' access to government services. In general, the results support the expanded model that provides a rich understanding of the changes in the pre-usage beliefs and attitudes through the emergent constructs of disconfirmation and satisfaction, ultimately influencing IS continuance intention. Finally, we discuss the theoretical and practical implications of the expanded model.

Original languageEnglish (US)
Pages (from-to)527-555
Number of pages29
JournalInformation Systems Journal
Issue number6
StatePublished - Nov 2011


  • E-government
  • Expectation-confirmation theory
  • Technology acceptance model
  • Technology adoption
  • Two-stage model of IS continuance
  • Unified theory of acceptance and use of technology (UTAUT)

ASJC Scopus subject areas

  • Software
  • Information Systems
  • Computer Networks and Communications


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