Methodology · v1
How the needle moves
The EPC Index is an editorial instrument. This page documents exactly what it measures, how readings are taken and what they are not.
Six criteria
Each assessed product receives a whole-number reading from 1 to 10 on six criteria. The EPC Index is the weighted mean of those readings multiplied by ten and rounded, giving a 0–100 scale.
- 01
Capability 25%
How deep is the discipline capability?
- 02
Interoperability 20%
Does data move through open standards and documented integrations?
- 03
Scale 15%
Does it hold up on large, multi-site, multi-contractor projects?
- 04
Usability 15%
How steep is the learning curve and how good is the daily ergonomics?
- 05
Deployment 10%
How flexible are cloud and on-premises options and their administration?
- 06
Ecosystem 15%
How broad are adoption, partners, training and available talent?
Reading the scale
- 9–10: reference class: the benchmark others in the category are measured against.
- 7–8: strong: clearly capable for demanding EPC work, with specific gaps.
- 5–6: adequate: fit for some projects or teams, with material limitations.
- 3–4: limited: narrow fit or significant constraints.
- 1–2: not recommended for EPC use today.
Where the evidence comes from
Version 1 readings are based on public documentation: vendor product pages and technical documentation, release notes, published standards conformance, partner and training programmes, and reputable trade and financial reporting. Every catalogue fact links to the source we read and the date we read it. We do not yet run hands-on lab benchmarks, so no score should be read as one.
What we never do
- Accept payment, sponsorship or affiliate fees for placement, scores or coverage.
- Publish user reviews, star ratings or customer counts we cannot verify.
- Invent prices, market shares, quotes or test results.
Freshness and corrections
Each product page shows when its plate and assessment were last updated. Ownership changes, renames and discontinuations are recorded as they happen; older names stay on the plate so they can still be found. If something is wrong, tell the desk. Corrections are dated and shown on the story they affect.
Categories and phases
The twelve categories are grouped into the three EPC phases: engineering (E), procurement and project control (P), and construction and handover (C). A product can belong to up to three categories; its first category sets its phase and its place in category rankings.