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Sequence 130 — T6 - functions and reusable logic

Context: Technology Gate B - Programmatic Data Management | Technology Gate
Source: CDMP Master Execution Manual

When / purpose

Make governance/data-quality logic explicit and repeatable.

What you should learn

• Function definition.
• Parameters/return values.
• Single-purpose functions.
• Basic testing by examples.

Resources / limits

Technology Competency Roadmap: active T6–T10 only. Detailed Technology Competency Reference: topic detail/readiness only.

Do this in order

1. Turn a normalization/validation rule into a function.
2. Call it with valid/invalid examples.
3. Explain inputs, outputs and failure cases.

Meridian application

Use Meridian synthetic files and database only for bounded practice.

Create / save

Reusable function.

Stop / boundary

Stop before production data engineering, application development, advanced OOP, orchestration or distributed processing.

Completion gate

You can write a small function from a plain-language rule and test it.

NEXT → Sequence 131

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