July 9, 2026 · Project Retrospectives
Retrospective: The Cascade Behind One Change
Splitting 'customer' into enterprise and individual looked like one field. It touched six modules.
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An enterprise blog · Lanzhou · since 2019
The Jiayifangyuan Journal
What we learn, written down in public
Project Retrospectives
20 postsJune 27, 2026 · Project Retrospectives
Retrospective: The Cost of Vague Acceptance Criteria
The system was finished and the client said it was not what they wanted. Every argument returned to one line: it was never specified.
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June 15, 2026 · Project Retrospectives
Incident Review: Running Out of Database Connections
The system went down at nine on a Monday morning because one connection was never closed.
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June 3, 2026 · Project Retrospectives
Retrospective: A Third Party Changed a Field Silently
A partner upgraded their API, the response shape shifted quietly, and our system broke two weeks later.
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May 22, 2026 · Project Retrospectives
Retrospective: Three Reruns for a Hundred Thousand Rows
The first run errored, the second disagreed on totals, the third passed. Each failure exposed a different problem.
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May 10, 2026 · Project Retrospectives
Retrospective: A Month Lost to Missing Documentation
The core developer left and the successor spent a month before daring to change a line.
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April 28, 2026 · Project Retrospectives
Retrospective: Visibility Beats Promises in Outsourcing
The vendor said nearly done every week, until a week before delivery revealed half the work was missing.
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April 16, 2026 · Project Retrospectives
Retrospective: A Regression That Slipped Through
One unrelated change brought back a bug fixed three months earlier.
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April 4, 2026 · Project Retrospectives
Retrospective: Scaling Up the Night Before the Sale
The campaign page was load-tested, but login and coupons were what fell over.
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