§ The result
ADP leads Workstream by 9 points.
Under rubric v1.0, ADP, filed under ATS-integrated, finishes on 48 and Workstream, filed under Screening, on 39, 9 points apart. The 7 criteria split 6 to 1 in favour of ADP: ADP is ahead on Bias Audit Transparency and Workstream on Human Oversight Design. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — ADP 46, Workstream 20 — and at an 18% weight it carries 45% of the weighted advantage ADP holds across the 6 criteria on that side of the table.
Vendor profile
ADP
ADP is an enterprise human capital management and payroll provider whose recruiting suite uses AI to parse, rank, and match job applicants via its Candidate Relevancy tool, ADP Assist generative-AI assistant/job-description generator, and skills intelligence.
Vendor profile
Workstream
Workstream is a mobile-first HR, payroll and hiring platform for hourly, multi-location employers such as QSR franchisees. Its hiring suite pairs a text-to-apply applicant tracking system with VoiceAI phone screens and VideoAI asynchronous video interviews, which return transcripts, AI summaries, pass/fail results for each question and match scores.
§ The record
ADP is filed under ATS-integrated AI, Workstream under Screening AI. They record no secondary category in common.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773. Only Workstream is in scope of Mobley v. Workday.
| Record | ADP | Workstream |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | US |
| Founded | 1949 | 2017 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 43% of the movement so far
Bias Audit Transparency
ADP 46 · Workstream 20
4.7 weighted points to ADP
20% weight · 66% of the movement so far
Article 11 Technical Documentation
ADP 53 · Workstream 40
2.6 weighted points to ADP
15% weight · 80% of the movement so far
Data Governance Disclosure
ADP 57 · Workstream 47
1.5 weighted points to ADP
12% weight · 91% of the movement so far
Post-Market Monitoring
ADP 45 · Workstream 35
1.2 weighted points to ADP
12% weight · 97% of the movement so far
Human Oversight Design
ADP 55 · Workstream 61
0.7 weighted points to Workstream
8% weight · 99% of the movement so far
Customer Documentation
ADP 58 · Workstream 56
0.2 weighted points to ADP
15% weight · 100% of the movement so far
FRIA Support
ADP 28 · Workstream 27
0.1 weighted points to ADP
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +9.6 — the difference between the two totals before either is rounded. Shares are of 11.0 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +9 beside that +9.6.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is ADP minus Workstream.
| Category | Weight | ADP | Workstream | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 53 | 40 | +13 | +2.6 |
| Bias Audit Transparency | 18% | 46 | 20 | +26 | +4.7 |
| FRIA Support | 15% | 28 | 27 | +1 | +0.1 |
| Data Governance Disclosure | 15% | 57 | 47 | +10 | +1.5 |
| Human Oversight Design | 12% | 55 | 61 | -6 | -0.7 |
| Post-Market Monitoring | 12% | 45 | 35 | +10 | +1.2 |
| Customer Documentation | 8% | 58 | 56 | +2 | +0.2 |
| Total | 100% | 48 (F) | 39 (F) | +9 | +9.6 |
§ Evidence
Cited sources and documented absences, criterion by criterion.
An absence is a finding, not a blank: the reviewer looked for a named artefact and recorded that it is not located. Where a source sits is a fact about hosting only.
| Criterion | Weight | ADP | Workstream | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 4 | 0 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 0 | Sources on the vendor's own domain | 7 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 3 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 18 | 5 | Sources on the vendor's own domain | 28 | 6 | Sources on the vendor's own domainSources on a separate domain |
ADP has 23 evidence rows across 7 of 7 criteria — 18 with a source URL, 5 documented absences; Workstream has 34 evidence rows across 7 of 7 criteria — 28 with a source URL, 6 documented absences; some documentation or audit rows for Workstream sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 57 evidence rows on file for these two vendors: 23 for ADP, across 2 distinct source domains, and 34 for Workstream, across 2 distinct source domains.
- Rubric
- v1.0
- ADP last reviewed
- July 17, 2026 · HireAIScore editorial team
- Workstream last reviewed
- September 25, 2026 · HireAIScore editorial team
HireAIScore scores are editorial research, not legal advice, and no vendor pays for placement, scoring or removal — see the methodology, conflicts policy and terms.
§ Where next