Lattice, Culture Amp, 15Five and Workday sell surveys, review cycles, and a manager workflow as a subscription. There is no mature open-source equivalent we will deploy and call a replacement. The review itself is a document. It can live in the HR system the client already runs, OrangeHRM or ERPNext, both GPL-3.0, instead of in a third vendor.
What are people actually renting?
Reminders, a form, and a report. Sometimes that form is worth a subscription. Often it is a process that should have been a page in the HR record plus a calendar. We say which one it is after looking at the form, not before.
What we will not invent?
A culture-survey science package. If the company wants a validated instrument and a benchmark against other companies, that benchmark is the vendor's data, and open source does not have it.
When does the subscription stay?
When the leadership team uses the vendor's benchmarks and will not switch to a form they own. Keep the tool. Still export the review into the employee record so a cancelled subscription does not delete the history.
What do we hand over?
We select the system, deploy it on infrastructure you control, connect it to the tools you keep, and write the runbook so your own team can operate it. Support after handover is optional. The rest of the map is in software you can stop renting; the engagement behind it is open-source business systems.
Name one process that still needs a person. We will tell you what a one-time build takes.
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