An Integrated Model of ERP Users' Continuance Intention: Social Cognitive Theory and Expectation Confirmation Theory

[[abstract]]過去的研究，對於影響使用IT意願與行為的因素，大多是從IT使用者初始的信念（有用性及易用性）與態度去探討。但是事實上，影響使用IT的意願與行為，是受到更多因素影響的。例如個人差異性對使用IT意願與行為影響程度為何，便需進一步探討。再者，有鑒於ERP建置成本高，對於使用後之確認性及持續使用意願亦須探討，本研究為解決上述問題，以「社會認知理論」及「期望確認理論」等理論，發展出個人差異（如：自我效能、電腦焦慮、及個人IT創新能力等）因素，建構出ERP使用者，對持續使用IT意願與行為的理論模式，並加以驗證，另為瞭解確認性對模式干擾效果，本研究再將樣本以確認性高低區分為兩群，分別進行模式驗證及比較。本研究以全國採用ERP系統的公民營企業業者作為研究樣本，運用網路問卷及實體問卷進行調查，總計回有效問卷305份。研究結果發現，個人差異性（電腦焦慮、電腦自我效能、個人IT創新能力）會直接，或經由確認性、滿意度間接影響持續使用ERP系統之意願。而個人IT創新能力，則推測受知識半衰期影響，對持續使用ERP系統意願，呈現負向作用。另高確認群與低確認群，經模式驗證確實有明顯差異。[[abstract]]Many of the prior studies emphasize the impact of an IT (information technology) user's beliefs and attitudes on behavior. Few of them address their relationship from the perspective of individual differences. Given the high cost of implementing ERP and the benefit gained from continuance ERP usage tends to compensate the cost, understanding how an ERP user's continuance intention becomes critical. Drawing on social cognitive and expectation-confirmation theory, we propose a model aiming to delineate the relationship among dynamic individual differences (computer self-efficacy, computer anxiety), static individual differences (personal innovativeness in IT) and continuance intention. This study also investigates whether an ERP user's confirmation moderates the above relationship. Through a field survey of 305 respondents, most of the proposed hypotheses were supported-individual differences affect continuance intention either directly or indirectly (through confirmation or satisfaction). The relationship between personal innovativeness in IT and ERP continuance intention is negatively contingent on knowledge half-life. Finally, confirmation moderates our model