A software quality model acts as a ramework for the evaluation of attributes of an application that contribute to the software quality. In this paper, a quality model is presented for evaluation of B2B applications. First, the most well-known quality models are studied, and reasons for using ISO 9126 quality model as the basis are discussed. This model, then, is customized in accordance with special characteristics of B2B applications. The customization is done by extracting the quality factors from web applications and B2B e-commerce applications, weighting these factors from the viewpoints of both developers and end users, and adding them to the model. Finally, as a case study, ISACO portal is evaluated by the proposed model.

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