[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_28":-5,"_38":-5,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":56,"_57":58},"routes/_store+/_readers+/email_author.$slug/route",{"_9":10,"_11":-5},"book",{"_12":13,"_14":15,"_16":17,"_18":19,"_20":21,"_22":23},"currentUser","id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvODAwMTk","title","Evaluating And Testing AI Using Real-World Work","state","published","contactAuthorMethod","email","aboutText","

Between 85% and 95% of AI deployments fail. Subtle or dramatic, those failures don’t stay contained - they ripple through workflows, decisions, customers, and the wider world. They create liability, damage trust, and can destroy companies, careers, and lives. The root cause is simple: the systems used to test AI before deployment are not fit for purpose.

This manual gives you a practical methodology for evaluating and stress‑testing AI and large language models under real‑world conditions - including the structured, scenario‑based testing now required under the EU AI Act for high‑risk and general‑purpose AI systems.

You can see how they behave, where they mess up, leak private data, misunderstand, hallucinate, or fail. You’ll learn how to expose hidden failure modes, understand behavioural drift, map risks, and build workflows that are more resilient once you understand the AI’s behaviour.

If you need to control the impact of unpredictable systems, this manual gives you the structure to do it. It provides a methodology you can actually use to evaluate AI systems - not academic theory, but practical steps for developers, testers, and technical teams working with real workloads.

This is the replacement to prompt testing you have been looking for.

Includes a Quick Start Guide & Practitioner Guide so you can jump straight in and begin testing your AI systems immediately.

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Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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