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ABSTRACT
The information system (IS) field lacks a scientifically based analytical tool for rapid delivery of IS due diligence. In 2013, a framework for IS due diligence (FISDD) was published. The work on this framework was continued with proceeding development and evaluation. One of the most important objectives of today’s business is making savings concerning various resources. The main novelty of the upgraded framework is the replacement of some of the manually conducted questionnaires with web-based questionnaires. This novelty reduces the total time required for on-site ISDD activities by 35–50%, as has been the result of several real cases. The results demonstrate and confirm the usefulness of upgrading FISDD, which increases its efficiency in DD processes, which is the main contribution of this article.