Which type(s) of evidence collection is required with a formal TMMi assessment?

For aformal TMMi assessment, bothstaff interviews and document studyare required to collect sufficient evidence. The assessment must adhere to the TMMi Assessment Method Accreditation Requirements (TAMAR), which state that formal assessments require thecorroboration of interview data with documentary evidence (artifacts). These can include documents, templates, or screenshots, ensuring that the evaluation is robust, repeatable, and auditable​​.