NINJA: Smarter Publishing.
Built on AI.
NINJA is S4Carlisle’s AI-powered platform for content quality and accessibility. Whether you need to validate manuscripts, automate accessibility compliance, or enrich your content for discoverability, NINJA does it at scale, with your team in control at every step.
Built for all publishers. Delivered as a managed service by S4Carlisle.
WHY NOW
Two Deadlines, One Solution
Accessibility compliance is no longer a future consideration for publishers. Two major regulations are now in force.
EAA
(in force since June 2025)
Noncompliant digital products risk fines and removal from EU platforms.
ADA Title II
The DOJ has extended the compliance deadline to April 26, 2027, for larger public institutions, and April 26, 2028, for smaller jurisdictions and special districts. Publishers must meet WCAG 2.1 AA standards to remain eligible for institutional procurement contracts.
Beyond compliance, accessible and structured content reaches 1.3 billion people globally with disabilities, ranks better in search, and performs better in AI-powered discovery. NINJA helps you get there without rebuilding your workflows.
EDITORIAL FEATURES
Content Quality at Every Stage
Citation Management
NINJA checks every citation against CrossRef, converts reference lists across APA, MLA, Chicago, Vancouver, IEEE, Harvard, and AMA in one action, and automatically resequences numbered citations when content changes. Clean, accurate references delivered every time.
Style Validation
Upload your house style guide, and NINJA will extract the rules automatically. It then flags violations across your entire manuscript by severity, with AI-suggested fixes that can be applied in bulk. What used to take weeks of manual copy editing now takes minutes.
Plagiarism Detection
NINJA goes beyond word-for-word matching to catch paraphrased content and passages that need citation. Every match is classified, scored, and linked to its source so your editors focus on genuine issues, not false positives.
Content Integrity Checks
Broken cross-references, missing figure callouts, numbering gaps, inconsistent units across chapters: NINJA finds them all automatically before they become post-publication problems.
ACCESSIBILITY AND CONTENT INTELLIGENCE
From Compliance to Discoverability
Alt Text Generation
NINJA analyses each image alongside its surrounding text to generate accurate, context-aware alt text. A chart in a biology chapter gets a biology description, not a generic label. Specialists review and approve in bulk before anything is applied.
Metadata Extraction
NINJA automatically pulls titles, authors, affiliations, keywords, taxonomy, and unique identifiers from books and journal articles, making your content easier to index, find, and distribute.
Compliance Completeness Checker
Before a manuscript reaches production, NINJA checks it against submission guidelines and formatting standards, flagging missing elements and structural issues so nothing reaches the wrong stage at the wrong time.
Summarisation
NINJA generates clear, concise summaries from long-form content, supporting editorial workflows, reader navigation, and content enrichment across journals and books programmes.
Image Keyword Extraction
NINJA identifies and extracts contextually relevant keywords from charts, photographs, and figures, supporting image search, archive tagging, and SEO across your digital platforms.
Intelligent Indexing
NINJA builds structured indexes from manuscripts, capturing names, places, concepts, and themes with cross-references. Consistent, accurate indexes delivered without manual effort.
API-FIRST ARCHITECTURE
Embed NINJA Directly Into Your Pipeline
Every NINJA capability is available as a REST endpoint. Publishers can plug citation validation, style checking, accessibility auditing, and alt text generation directly into existing CMS workflows and production pipelines without ever using the NINJA interface.
Batch endpoints handle hundreds of files at once. Real-time updates keep your team informed throughout. NINJA works equally well as a standalone platform for editorial teams and as a headless engine inside automated production workflows.
ACCESSIBILITY CONFORMANCE SERVICES
Web Platforms and LMS
S4Carlisle helps publishers, institutions, and edtech vendors demonstrate accessibility conformance for their digital properties, with a focus on Learning Management Systems and digital courseware. Our services cover hybrid audits, VPAT 2.5, ACR documentation, and WCAG 2.2 AA conformance.
Our Hybrid Methodology
Automated: axe-core plus, our multi-tier engine, checks every page and interaction against all WCAG 2.2 Level A and AA success criteria. Manual: experienced specialists verify what automation cannot catch, including meaningful sequence; caption quality; and screen-reader behaviour on NVDA, JAWS, and VoiceOver. Interaction testing: login, navigation, forms, quizzes, and media are exercised via keyboard, screen reader, and mouse paths.
Deliverables
1. Detailed Audit Report (Excel): findings mapped to WCAG, with element identification, fix guidance, and owner routing.
2. Accessibility Conformance Report (ACR): ready for procurement and Section 508 disclosures.
3. VPAT 2.5 (WCAG 2.2 AA): per-criterion conformance in the current ITI template.
4. Remediation guidance: prioritised fixes with re-audit available on request.
Engagement Models
Single platform audit. Per-title courseware audits. Ongoing monitoring with release-diff reviews. Vendor VPAT authoring. We work with you to find the model that fits your programme and budget.
KEY OUTCOMES
What to Expect
01
Up to 50% time savings
across content quality and accessibility workflows.
02
Fewer errors post-publication
caught at source, not during final QA.
03
In-built compliance
WCAG-validated output ready for EAA and ADA Title II requirements.
04
Flexible integration
via fully documented API or a standalone platform.