Stakeholder communication and lifecycle — study roadmap

This unit is CCARP-U6 · Stakeholder Communication & Lifecycle Management, 14% of the blueprint. It carries five official objectives across three topics, and it is the domain where the sentence that causes the damage is usually the shortest one in the document.

Topic	Objectives	What you must be able to do
T1 · Discovery and requirements	LO1	Tell a requirement from a decision, and write a criterion a release can fail
T2 · Stakeholder communication	LO2, LO3	Record a decision with its alternatives and evidence, name the metric before the number, and say whose schedule you are promising
T3 · Documentation and lifecycle support	LO4, LO5	Answer the pre-launch decisions in writing, carry constraints across the handoff, and turn a monitored failure into a test

The five confusions this domain tests

A model name is not a requirement. It is an answer to a question nobody has written down, and no result can contradict it.
"Under two seconds" is not a target. Baseline latency and time to first token are different intervals over the same request, so both parties can measure honestly and disagree completely.
A pinned model ID freezes less than teams assume. Weights and configuration are fixed; the request router, safety classifiers and sampling logic are not, and updates to them occasionally produce minor observable differences.
The retirement date you quote may not be yours to give. It is a commitment for Anthropic-operated platforms. Amazon Bedrock and Google Cloud set their own lifecycle dates.
A closed ticket is not an iteration. The loop closes when the failure becomes an evaluation case the next release has to pass.

Sequence

T1 first. It is one objective and it supplies the vocabulary the other two reuse: criterion, evaluation, threshold, and the difference between a need and a decision.
T2 second, in objective order. LO2 is about the record you leave behind; LO3 is about the promise you make in front of someone. They share a failure — a true statement offered as a commitment it cannot support.
T3 last. Its two objectives are one activity seen twice: LO4 is what the document contains, LO5 is which boundary it has to cross.

Budget the most time on T2. It carries two objectives and five house skills against T1's one and two, and its service-level material is where the exam's scenario stems concentrate.

What to carry into the exam

For each objective, be able to state the sentence somebody wants to write, the documented fact that constrains it, and the version that survives. This domain is not tested on vocabulary. It is tested on whether you can look at a paragraph a competent engineer wrote in good faith and find the clause that nobody can keep.

Sources and their limits

Every factual claim is grounded in retained documentation, quoted verbatim with a recorded retrieval date and content hash. Four cautions:

This unit teaches architecture, not contract drafting. What a service-level agreement should legally contain, and what remedies attach to it, are questions for the organisation and its advisers. What is here is the measurement discipline underneath: which metric, over what share of requests, measured when.
Retirement dates and platform behaviour change. The dates quoted were current at the retrieval date recorded with each snapshot, and each is published as a floor rather than a fixed day. Check the current position before it reaches a document a customer reads.
Lifecycle allocation is per platform and per model ID. Every model ID, whether dated or dateless, has its own distinct deprecation and retirement schedule, and reaching the same model through another platform changes whose schedule governs.
The hosting guidance describes a self-hosted Agent SDK deployment. Its limitations and sizing method apply to that shape. A managed surface has its own operating envelope, and nothing here establishes what it is.

Every threshold, latency figure, cost and owner name used in an exercise is a house fixture, labelled where it appears.