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Sequence 155 — Meridian applied-lab plan and prediction

Context: Chapter 8 - Data Integration and Interoperability | Applied Lab
Source: CDMP Master Execution Manual

When / purpose

Enter the Chapter 8 lab with a business hypothesis before touching tools or templates.

What you should learn

The chapter concept is the lesson; the tool is the medium.
Prediction before action prevents blind clicking.
Source and raw data must remain preserved.
The lab output must support a business/data-management decision.

What to read / study

MUST: Chapter 8 Applied Lab folder — final lab must be source-checked; if the guide is missing, stop and have it built from the chapter source.
MUST: Meridian Casebook — read only the scenario/system/domain sections used by the lab.
REFERENCE: Technology Roadmap — required medium is SQL + Python/pandas + PostgreSQL; do not exceed chapter-triggered depth.

Do this in order

Read the lab business situation and expected evidence.
Write what you predict you will observe or decide.
List the exact inputs you will use.
Confirm raw inputs will remain unchanged.
Identify the DMBOK concept each planned step is supposed to make visible.

Meridian application

Load CRM CSV, OMS relational data and service JSON into staging; standardize formats; transform/join; document source-to-target mapping; build lineage; break a source format and repair the pipeline.

Create / save

Lab prediction + input/evidence checklist.

Stop / boundary

Stay inside the current source/skill boundary. Do not pre-learn later chapters or engineering depth.

Completion gate

You can explain what you are about to do, why it matters and what result would change your conclusion.

NEXT → Sequence 156

This card preserves the missing-lab gate; it does not build the separate Chapter 8 lab.