An organisation publishes a technology radar and teams ignore it. What makes a radar influence decisions?
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Why radars get ignored
They express opinion without consequence. A list of technologies marked adopt, trial, assess and hold is an editorial position. Teams facing a deadline need a reason, not a categorisation.
Three specific failures:
1. No rationale. "Hold" without an explanation is an instruction, and instructions from a body with no stake in delivery are resisted.
2. No connection to support. If "adopt" does not mean "this is in the paved road, supported, with templates and on-call expertise", then adopting it is not easier than choosing something else — so the categorisation buys the team nothing.
3. Not derived from the organisation's own experience. A radar copied from external sources describes someone else's context. The valuable content is what this organisation has learned: what worked, what failed, and why.
What makes it influence decisions
Tie the rings to concrete support levels:
- Adopt — in the paved road: templates, platform integration, documented patterns, people who can help, and on-call familiarity. Choosing it is materially easier.
- Trial — usable with a named owner and a review, so the organisation learns from a bounded experiment.
- Assess — someone is looking; not for production.
- Hold — with the specific reason, and the migration path for existing users. "Hold" on something already widely used without a path is just a complaint.
Derive entries from evidence. An incident, a measured comparison, a failed adoption. "We tried this in two teams and both migrated away for these reasons" carries weight that an opinion does not.
Let teams contribute. A radar written by an architecture group about teams is resisted; one where teams propose entries from their own experience is used, because it is theirs.
Keep it small and current. A radar with two hundred entries is an inventory. Thirty entries reviewed quarterly is a signal.
The connection that matters most
The radar is only as strong as the paved road behind it. If "adopt" makes a team's life easier, the radar guides behaviour without any enforcement. If it is purely advisory, it is one opinion competing against a deadline — and deadlines win.