Decision receipt
Build a custom analytics workspace instead of buying a tool
Expected outcome
A usable internal analytics release will be ready within two weeks.
Key assumptions
- 01Existing event data is clean enough to use
- 02The team can avoid migration work
Disconfirming signal
The first internal release takes longer than three weeks.
Outcome review
The first usable release took five weeks. Cleaning and remapping historical events accounted for most of the delay.
The usable release took five weeks against an expected two weeks, missing the recorded outcome by three weeks.
What the receipt revealedThe estimate assumed existing data was implementation-ready; migration work was the largest source of delay.
Original input and generation record
We are building custom analytics instead of buying a tool. I expect a usable internal release in two weeks because the event data already exists.
gpt-5.6 · capture-v1