A platform is a start.
Compliance is the milestone.
Prepare your operating relationships and security evidence while the cloud foundation takes shape. Give your security and compliance lead a clear picture of what you own, what you may inherit from the provider and shared services, and what still needs to be demonstrated.
- 01
Business context
Understand the starting point
- Business objectives
- Existing artifacts
- Stakeholders
- 02
Compliance framing
Confirm scope and approach
- System boundary
- Decision authorities
- Potential inheritance
- Retained responsibilities
- 03
Evidence & coordination
Identify what needs to be demonstrated
- Evidence needs
- Dependencies
- Coordination
- Readiness questions
Prepared for review
A clearer basis for the next review
Illustrative preparation, not an official gate sequence. Applicable inheritance and evidence must be confirmed; the deciding authority (an auditor, a regulator or a quality unit) makes the decision.
Where systems connect,
responsibilities meet.
Joining a cloud foundation and arranging security operations support means agreeing who acts, what service each team provides and where its authority begins and ends.
An assessment boundary identifies the system components an auditor, a regulator or a quality unit decides on. Connected, separately authorized systems remain outside it. A cloud platform, a network perimeter and an assessment boundary are different things; the same distinction holds for an audit scope.
The operating relationship adds a documented handshake: people accept named responsibilities; processes establish handoffs, coverage, escalation and agreed service levels; technology connects the interfaces, identities, data and monitoring. Customer-facing service-level agreements (SLAs) and supporting operational-level agreements (OLAs), using the program’s terminology, make those expectations explicit.
Definition and source basis
NIST: assessment boundary defines the system scope. NIST SP 800-53 Rev. 5, SA-9 and SA-9(2) address external-service responsibilities, service expectations and technical interfaces. The people, process and technology framing is Groundwork Cloud commentary; actual scope, inheritance and authority must be confirmed with the provider, the shared-service owners and your security operations provider. Sources consulted 2 October 2026.
Join, contract or build.
The responsibilities still need owners.
Shared enterprise programs and provider landing zones can be reference points for the conversation; they are not a required route. A shared platform, where one exists, frames shared services and their boundary—it does not automatically cover every system that consumes it.
Use the responsibility matrix to establish actual roles, service agreements and decision rights. A RACI assignment does not itself grant authorization, certification or delegated authority.
Prepare the boundary and the compliance conversation.
- What crosses the boundary?Applications, data, identities and dependencies that connect your systems to shared or retained services.
- Who owns the work?Who configures, changes, monitors, restores and maintains each part of the service?
- What service is actually agreed?Coverage hours, escalation, recovery expectations and agreements between supporting teams.
- Who can approve the action?Separate technical ability from delegated authority, risk decisions and workload approval.
AWS provides the underlying cloud services. The foundation team operates its agreed shared services.
How your cloud path changes responsibilities.Join a shared platform or build your own team.Expand the fictional snapshot +Close snapshot −
Joining means confirming the shared service scope, the duties you retain and the shared-service handoffs. Building means establishing platform ownership, specialist skills, support coverage and repeatable operations. Either path can use internal teams and contracted support.
Both paths require application ownership, agreed security operations coverage, service levels and response authority. The accountable authority retains the decision. This is a fictional discussion aid, not an accepted RACI or a claim about any program’s services. Potential run-rate savings must be weighed against skills, support and transition effort.
See how enterprise choices shape a GSS program.
Explore the GSS as a bounded part of enterprise operations, then compare provider scope, delivery capacity and tooling prerequisites with the consultant. A worked example for one provider starts the conversation; from there, explore other provider choices. Start with provider-aligned teams, shared guardrails and selective automation; consider a cloud management platform where its value justifies the investment. See how required capabilities and interim coverage assumptions can affect an illustrative schedule.
For modeling and discussion—not an authorization or audit forecast, delivery commitment or approved client plan.
A GSS is part of the wider enterprise architecture. In a facilitated engagement, additional interactive sandboxes help explore boundary relationships, event flows, operational responsibilities and schedule dependencies.
Prepare for the decision that matters.
An authorized platform or a certified provider does not automatically cover your system. The eight-week engagement helps clarify what may be inherited, what remains yours and what implementation, evidence and assessment work still needs to happen. The accountable authority makes the decision; the eight-week strategy does not promise an authorization, a certification or an audit outcome.