Entry 15 from the book: Data Contracts in Practice

Thilo WiltsThilo Wilts
2 min read

"Your article about future trends inspired us"


1 · The Problem in a Nutshell

Date: February 12, 2024

Manual post-processing is reaching its limits: Even small schema changes from suppliers paralyze the product pipeline and cause marketing campaigns to fail. Without binding Data Contracts with clear fields, formats, and SLAs, every catalog refresh remains a risky blind flight.


2 · Mini-Solution: The 3-Pillar Model (Bird's-Eye View)

PillarQuestionQuick Win Today
Asset ManagementWhat do we have & where is it?Create an inventory table with 4 columns (Data Type · Storage Location · Owner · Criticality)
Access ManagementWho is allowed to do what?Review admin rights once a month and remove unnecessary access
AccountabilityWho is the Data Sponsor?Appoint one responsible person per core dataset

Quick Win from the Field: In one project, 127 customer duplicates were cleaned up – fewer misdirected mailings, more satisfied customers.


3 · What you can do NOW if you also have this problem

  1. Search in your ERP or CRM for a typical entry with an "error message" or a note for correction.

  2. Reconstruct the original error: What was the cause?

  3. Derive a rule from this that automatically detects this error the next time.


4 · Cliffhanger

A seemingly small transposed number triggered a domino effect that almost jeopardized a major order. You can read how we stopped this at the last minute in Chapter 3 of the book.


5 · Want the Whole Story?


What information must your supplier finally deliver reliably for your process to run smoothly? Let us know!


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Thilo Wilts
Thilo Wilts