The PMI-CPMAI framework places strong emphasis on traceability, accountability, and documentation across the entire AI lifecycle---covering both cognitive (ML models, data pipelines) and non-cognitive components (traditional automation, rule engines, integration services). It explains that AI projects typically involve cross-functional roles---data scientists, ML engineers, domain experts, security, compliance, and operations---and that ''clear accountability requires that decisions, changes, and artifacts be documented in a way that is shared, searchable, and version-controlled across the team.''

To achieve this, PMI-CPMAI recommends centralized documentation repositories (for example, a single documentation platform or system-of-record) where all contributors can log design decisions, assumptions, model versions, data lineage, approvals, and test results. Centralization reduces fragmentation, ensures a ''single source of truth,'' and supports audits, governance reviews, and handovers. Periodic reviews by the project manager improve quality but do not, by themselves, create systematic accountability. Splitting protocols for cognitive vs. non-cognitive parts can introduce silos and inconsistencies, and a separate documentation team may distance those doing the work from owning the records.

By contrast, using a centralized documentation system accessible to all team members aligns directly with PMI-CPMAI's call for integrated, lifecycle-wide documentation: every role remains responsible for its own artifacts, but all content lives in a shared, governed environment, enabling accurate, up-to-date accountability documentation.