October 15, 2026 · Product Thinking
Grading the Confidence Behind Requirements
Treating requirements as facts is the most common cause of delay. Requirements differ in how reliable they are.
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An enterprise blog · Lanzhou · since 2019
The Jiayifangyuan Journal
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Product Thinking
22 postsOctober 9, 2026 · Product Thinking
The Watershed for Vertical Products: Writing Industry Defaults into the System
Vertical is not a new industry label on a generic product. The real barrier is understanding and carrying the default rules that practitioners take for granted.
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October 3, 2026 · Product Thinking
Drawing the Boundary of an MVP
Minimum viable is not the fewest features; it is one complete business loop running end to end.
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September 21, 2026 · Product Thinking
Three Questions Worth Asking in User Interviews
Asking what people want yields imagination; asking what they did last time yields facts.
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September 9, 2026 · Product Thinking
Admin Systems Are Products Too
Back-office users spend eight hours a day there. One inefficient click becomes a long-term cost.
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August 28, 2026 · Product Thinking
Permission Design Is Product Design
Permissions are not a technical appendix. They decide what each person in the organisation can see and do.
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August 16, 2026 · Product Thinking
Empty States in B2B Products
The first thing a user sees is not a feature but a blank page. Empty states decide whether they can start.
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August 15, 2026 · Product Thinking
Making Dashboards Actually Used: Three Design Principles
Dashboards usually fail not because the data is wrong, but because they only answer what happened and never answer what should I do now.
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August 4, 2026 · Product Thinking
Form Design: One Field Fewer, One Step More Completion
Every field has a cost. Designing a form means deciding which information is truly needed now.
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