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BQR Reliability Engineering

The reliability toolchain bought in 2000 for utility SCADA and still in use in 2023 — availability modeled before the system exists rather than reported after it fails.

Product lines and other names: CARE, BQR, apRBD, Reliability Block Diagram Software

Left to right is time. Each row is one of the 7 disciplines BQR Reliability Engineering carried, ordered so kindred disciplines sit next to each other rather than alphabetically — a landscape only means anything if neighboring rows belong together. Height is the work running in that domain in that year, weighted by what failure would have cost — life-safety ×3, a statutory obligation ×2.2, the estate itself ×1.5, an evaluation ×1. Every project declares which of those it was, so each ridge traces to an entry you can open and disagree with. Only the work that named this manufacturer is counted, so this is the shape of what it carried rather than of the record around it. Height and color are on the record-wide scale rather than this page’s own, so a modest estate draws a modest landscape and any two of these pages can be read against each other.

CARE for system-level reliability and availability modeling, reliability block diagrams for series and parallel path analysis, and parts-count mean time between failures prediction against the MIL-HDBK-217, Telcordia and IEC reference libraries.

Engineering-discipline tooling rather than IT operations tooling, and the difference is the whole point. Monitoring reports how a system performed after it failed. This answers whether a design will meet an availability target before anything is built.

Bought in 2000 for the JEA SCADA work and carried into the City of Jacksonville estate, where it stayed in use for seventeen years.

Where it appears

Declared on each entry rather than listed here, so this page cannot drift from the work it describes. What each entry named is quoted as it stands, with how much of that project rested on it and what stands behind the claim beside it. The first of those drives the height of the surface above.

Coleman Technologies (subsequently acquired; now Presidio)