HR built a churn predictor trained on 40 rows

“The password is really long.”— IT Service Desk

Reason:

Mainly because the budget expires on Friday. Built in 19 minutes and demonstrated immediately afterwards.

Built by:

Tobias, the management assistant

Build time:

7 evenings

Built with:

Vue, for personal reasons

Database:

Jira custom fields, somehow

Authentication:

the write-only account can also read

Deployment:

running from an image tagged final-final

Responsible:

Tobias, who thought somebody else owned it

Documentation:

an architecture diagram containing a box labelled "magic happens here"

Security situation:

the user's role is stored in localStorage

Future disaster:

It will be replaced by a second version of itself.

Age: 3.6 years · originally expected to last 4 weeks · 4 owners so far · survived 2 reorganisations · last meaningful change 210 days ago

Rated legendary mostly because: 6 accidental connections, 82% chance of becoming business critical, €173k per year.