Abstract:Collecting necessary digital and network forensics to prove the identity of an individual who is responsible for a crime, or suspected of a malicious attack, or has used a device during an incident, with minimum doubt to the court or other legitimate organisations based on the digital forensic investigation model is one of the most important legal and security issues of digital identity management systems (DIMSs). Without a good understanding and identification of the most important parameters of DIMS based on the digital forensic investigation model, it is not possible to do digital forensic investigation and provide required evidence. Therefore, the main goal of this paper is to identify and prioritise DIMS parameters by considering a user's digital identity lifecycle, the contexts of usage challenges, and constraints that should be considered in a digital forensic readiness model.