Produce a function-by-function change impact assessment for [InitiativeName], covering [Functions] and key processes [KeyProcesses]. Identify process, policy, role, system, and behavioral impacts, with severity and timing relative to [GoLiveDate]. Output format: (1) Impact Matrix table: Function | Process | Impact Type | Severity (Low/Med/High) | Population Affected | Change Description | Mitigation | Training Need | Owner. (2) Readiness Checklist with gate criteria and evidence required. (3) Issue log starter list with priority and response owner. (4) Executive Readout (≤150 words) summarizing top five impacts and decision asks. Align readiness criteria to [ReadinessCriteria] and include clear entry/exit gates per function. Provide a recommendation on the feasibility of meeting the go-live date, highlighting red/amber items requiring leadership attention.