Chart · radar

Streaming engine capability profiles

Three candidate engines scored 0–5 on five shared criteria. Helix is the recommendation: it is the only profile that holds 4 or better on throughput, latency and reliability at once, and it pays for that in cost efficiency.

Streaming engine capability profiles Illustrative dataset, not a real vendor evaluation. Three streaming engines scored on five criteria against one shared 0 to 5 scale, where the centre is a true zero and the outer ring is 5. Clockwise from the top: throughput, latency, reliability, cost efficiency, ecosystem. Helix scores 5, 4, 5, 3, 4; Corvus scores 4, 5, 3, 4, 2; Meridian scores 3, 3, 4, 5, 3. Helix, the focal profile, is the only engine at 4 or above on throughput, latency and reliability together, and it is the weakest of the three on cost efficiency. Each series carries its own vertex marker shape — circle, square, triangle — repeated in the key, so no series depends on colour alone. 1 2 3 4 5 Throughput Latency Reliability Cost efficiency Ecosystem Helix Corvus Meridian SCORE 0–5 · ONE SHARED SCALE

Illustrative dataset — the scores are invented to demonstrate the radar grammar and describe no real product evaluation. All five criteria share one 0–5 scale with the centre as a true zero; no axis is normalised separately and no inner ring is lifted off zero. Vertex marker shape, not colour, is the primary series cue, and the key repeats each shape. Overlap is handled with fill-opacity on a token colour. Colour resolves through design-system tokens; where no project tokens are compiled the page falls back to the documented neutral palette declared in :root. Static, script-free, and offline.