Problems
A problem is a title and a Markdown description; everything else in the Lab belongs to one.
Concepts
Problems, workbooks, commits, dashboards and artifacts, and who can do what with them.
Workbooks and nodes
A workbook is YAML; each node is an ordered list of steps that produces one table.
Commits
Every committed change to a workbook is kept, with a number, a hash and a message.
Dashboard
The outputs that matter, pinned from the head commit, with the parameters as controls.
Artifacts and sharing
An artifact is a snapshot of a problem at one commit, behind its own link, opened by whoever its visibility admits.
Data in the Lab
What a workbook can read, and how staff and customers differ.