Consider the following characteristics of an assessment:* the assessment is performed by an accredited TMMi...

Informal assessments, as described in the TMMi framework, are often quicker and cheaper as they do not require the extensive corroboration of evidence that formal assessments do. One key characteristic of informal assessments is that they may rely solely on interviews, without using other forms of corroboration such as documentation reviews or observations. These informal assessments provide an indicative view of the organization's maturity level but do not result in formal certification​