Author: Jose S
How to check an AI tool’s answers yourself before you trust it at work
Build human-sized evals: spot checks, golden questions, and a regression set with clear pass criteria. Score analytics outputs before fluent wrong SQL or prose becomes process.
What is a semantic layer? One place to define your business metrics
A semantic layer defines metrics and terms once for many BI tools. It is not a second warehouse. Start with one certified revenue metric before you buy a…
Building a portfolio that gets interviews
Build a small portfolio around clear questions, real method, and a decision-ready takeaway. Fewer strong projects beat many stock dashboards with no problem statement.
What is dbt? How it turns raw warehouse data into clean tables
dbt turns SQL transforms into versioned models with tests and docs. Learn staging, intermediate, and marts so you can read a change even if you do not own…
Which AI tool to use for your files and office work: ChatGPT, Claude, Gemini, or Copilot
Put AI on files and office work with a work account, a safe first task, and a human Send. Summaries help; unsupervised approvals do not.
