Despite unprecedented investments in e-government annually, the degree to which these initiatives are successful in delivering government outcomes varies widely. It is posited that traditional means of evaluating these systems overlook important measures needed to support the ultimate success of e government. To address this gap, this study will: (1) identify the critical features of e-government that influence success; (2) investigate how public value is created through the use of e-government; and (3) propose and test a public value based success model to explain the creation of value within the disability sector. This study extends the DeLone and McLean IS Success Model (2003) using a theoretically based framework grounded from Public Value Theory to provide a perspective for evaluating e government success. The contribution of the model is to assist governments in making complex information system portfolio investment decisions.