Identity management is a hard requirement for any environment where information is a prized and high-value asset. With recent regulations like Sarbanes-Oxley, the threshold for environments where ID management would be a good fit has fallen significantly. However, taking the time to define, optimize, enforce and create documentary evidence of your identity management processes does not mean that full automation of these processes through technology is necessary. The three main factors that determine the likely value from automation are the number of identities to be managed, the heterogeneity of the environment and the cost of current identity-related processes.”]
Source: https://www.csoonline.com/article/2118218/compliance-efforts.html