Caesar AI Atlas
Regulatory • Intermediate

Sandbox Plan vs Real-World Testing Plan

A side-by-side comparison of Sandbox Plan and Real-World Testing Plan. It explains how an agreed regulatory sandbox document differs from a plan for testing an AI system under real-world conditions.

Quick Verdict: Use sandbox plan for agreed work inside a regulatory sandbox; use real-world testing plan for structured testing under real-world conditions.

At a Glance

Sandbox Plan

Sandbox Plan defines agreed document between a participating provider and a competent authority that defines activities within a regulatory sandbox.

Key Characteristics
  • • Agreed document between a participating provider and a competent authority
  • • Defines activities within a regulatory sandbox
  • • Describes objectives, conditions, timeframe, methodology, requirements, and other sandbox parameters
Watch Out For
  • • A sandbox plan is not a general project plan; it is tied to sandbox participation and authority agreement
  • • Defined conditions and timeframes should be traceable to the sandbox scope

Context: Most relevant when a provider participates in an AI regulatory sandbox with a competent authority.

VS
Real-World Testing Plan

Real-World Testing Plan defines document that defines how an AI system will be tested under real-world conditions.

Key Characteristics
  • • Defines how an AI system will be tested under real-world conditions
  • • Describes objectives, methodology, population and geographic scope, timeframe, monitoring, organization, and conduct
  • • Focuses on operational testing outside purely controlled laboratory conditions
Watch Out For
  • • Real-world testing requires clear monitoring, scope, and safeguards
  • • It should not be treated as unrestricted live deployment

Context: Most relevant when an AI system will be evaluated with real users, environments, or operating conditions.

Key Differences

AspectSandbox PlanReal-World Testing Plan
Regulatory purposeA sandbox plan structures activities within a regulatory sandbox agreed with a competent authority.A real-world testing plan structures how an AI system will be tested under real-world conditions.
Trigger pointIt is triggered by participation in a sandbox and the need to define agreed objectives and conditions.It is triggered by the decision to test the AI system in real-world settings.
Required evidenceEvidence should include agreed objectives, methodology, conditions, timeframe, requirements, authority involvement, and sandbox boundaries.Evidence should include test objectives, methodology, population, geographic scope, monitoring, organization, conduct, and safeguards.
Responsible actorThe participating provider and competent authority are central to defining and agreeing the plan.The organization conducting or controlling real-world testing must define the plan and responsible operational roles.
Audit implicationAuditors will check whether activities stayed within the agreed sandbox scope and conditions.Auditors will check whether real-world testing followed the approved plan, monitoring arrangements, and safeguards.
Caesar AI Note

In practice, sandbox participation can include or inform real-world testing, but the documents should not be merged casually. Each plan has different approval, evidence, and monitoring expectations.

Notes

Common Mistakes

1

Using a sandbox plan as a substitute for a detailed real-world testing plan

2

Treating real-world testing as ordinary deployment without defined safeguards

3

Failing to document scope, timeframe, methodology, and monitoring arrangements

When to Use Each

sandbox-plan

Use Sandbox Plan when describing the agreed document for activities within an AI regulatory sandbox. It is the right term when the competent authority and sandbox conditions are central to the governance record.

real-world-testing-plan

Use Real-World Testing Plan when describing how an AI system will be tested under real-world conditions. It is the right term when the focus is test design, scope, monitoring, and operational safeguards.

Compliance Note

Under EU AI Act-style governance, both documents support controlled experimentation but answer different compliance questions. A sandbox plan governs the sandbox arrangement, while a real-world testing plan governs the design and conduct of real-world testing.

FAQ

Can a sandbox plan include real-world testing?+

It can relate to real-world testing if the sandbox arrangement includes such activities, but the real-world testing plan should still define the operational testing details.

Who agrees a sandbox plan?+

A sandbox plan is an agreed document between a participating provider and a competent authority. That authority involvement distinguishes it from an ordinary internal test plan.

Why is a real-world testing plan important?+

It defines how testing will occur under real-world conditions, including scope, monitoring, methodology, and safeguards. This prevents testing from becoming uncontrolled deployment.

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