Build Trust and
Transparency into
Every AI System

Responsible AI (RAI) is how enterprises move from AI pilots to trusted production systems. It provides the governance, observability, and control needed to ensure models and agents behave reliably as they scale across the organization.
Hitachi Digital Services builds trust into the lifecycle of AI models and agents, so decisions are explainable, data is protected, operations are visible, and outcomes are repeatable. The result is AI you can stand behind with customers, boards, and regulators.

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Build Trust and Transparency into Every AI System
Challenge & Opportunity

AI Must Earn the Right to Scale

Most organizations can pilot AI. Scaling it safely is harder. In production, small gaps become material risks. Data lineage is unclear, models drift, hybrid estates split control, and regulations outpace change requests. Decisioning is harder to explain, bias and quality vary across markets and use cases, controls fragment across teams, costs rise, and audit demands grow. Teams need a way to prove what the system did, why it did it, and who approved it. They also need the ability to intervene when conditions change – without pausing the business.

Solution
Operationalize Responsible AI and Assurance by Design – and in Production
Responsible AI is the governance layer of enterprise AI systems. Within Hitachi Digital Services’ Center for Architecture & AI (CAAI) platform, R2O2 provides the policy, guardrails, and operational controls that help models and agents run safely inside the HARC for AI environment.

Governance Layer for Enterprise AI

R2O2 is our framework for Reliable, Responsible, Observable and Optimized AI. It defines the governance model for enterprise AI systems, translating policy into operational controls across the full lifecycle of models and agents.

Governance Layer for Enterprise AI
  • Policy Translation
    Translates policy into operational controls across the full lifecycle of models and agents.
  • Governance Model
    Standardizes roles, risks, tests, and evidence across teams and delivery environments.
  • Guardrail Definition
    Helps define model and agent guardrails, automate sign-off, and manage documentation.
  • Audit Artefacts
    Exposes the artefacts auditors ask for and supports reviewable, supportable delivery.
  • Design Controls
    Supports clear scope, risk scoring, evaluation plans, and measurable acceptance criteria.
  • Build Assurance
    Embeds model cards, test harnesses, safety checks, and traceable artefacts into development.

Operational Control in Production

Hitachi Application Reliability Centers for AI (HARC for AI) is both a framework and set of tools. It provides the operational environment where R2O2 controls run in production. It monitors model performance, agent activity, drift, safety signals, and cost, enabling rapid intervention when behavior deviates.

Operational Control in Production
  • Production Environment
    Provides the operational environment where R2O2 controls run in production.
  • Live Monitoring
    Monitors model performance, agent activity, drift, safety signals, and cost in real time.
  • Rapid Intervention
    Enables alerting and rollback patterns when behavior deviates from expected thresholds.
  • Runtime Metrics
    Delivers live metrics on quality and cost, with observable agent actions across systems.
  • Evidence Capture
    Preserves evidence when intervention is needed, supporting transparent operational control.

Enforce Trust at the Point of Action

The RAI Platform is the runtime governance and enforcement layer for enterprise AI. It applies policies as models generate content and agents make decisions, call tools and access systems – combining content, document, behavioral and identity guardrails with centralized monitoring and audit-ready evidence.

Enforce Trust at the Point of Action
  • Content Trust
    Evaluates AI-generated content for sensitive data exposure, toxicity, bias, prompt injection, IP risks, and hallucinations before it reaches users or downstream systems.
  • Document Threat Guardrail
    The Document Threat Guardrail detects and removes sensitive, confidential and regulated information before ingestion or output. English and Japanese are supported for cross-regional operations.
  • Behavioral and Identity Trust
    Authorizes agent actions and tool calls before execution, verifies human and non-human identities and scopes access and credentials to the task being performed.
  • Runtime Policy Enforcement
    Applies human-readable, version-controlled policies consistently across models, applications and agent workflows, turning governance requirements into enforceable controls before AI content or actions create risk.
  • Governance, Compliance and Assurance
    Centralizes risk tiers, policy status, guardrail events, exceptions and audit trails. The platform supports alignment with leading compliance and security frameworks: NIST RMF, ISO Standards, JPAIBG and NERC CIP, as well as the OWASP LLM Top 10, OWASP Agentic AI Top 10, MITRE ATLAS and NHI Top 10.
  • Cost and Sustainable AI Operations
    Tracks LLM usage and costs across AI applications and agents. By blocking policy-violating prompts and preventing unauthorized or unsafe actions before execution, the platform helps reduce unnecessary AI spend, strengthen security and compliance, and support more sustainable operations.
  • Flexible, Agnostic Deployment
    Integrates through a transparent proxy, REST API or SDK and works across AI models, cloud platforms, guardrail providers and agent frameworks, including LangChain, LangGraph and Dify.

Faster Paths to Responsible AI

Our accelerators help teams put Responsible AI into practice faster, with less reinvention and more consistency across delivery teams.

Faster Paths to Responsible AI
  • E3 Methodology
    Envision the problem with the business, Evaluate options against risk and value, and Execute in sprints with gated releases. E3 helps ensure that what ships is reviewable and supportable.
  • Sprint2AI
    Provides a structured route from idea to pilot in weeks, with evaluation datasets, red-team scenarios, and a decision to scale or iterate.
  • Praxis
    Supplies 25+ industrial AI cores for manufacturing and grid or electric mobility, packaged with the governance controls typical buyers require. Examples include visual inspection, quality prediction, and demand sensing.
  • Blueprint Hub
    Offers reference architectures, policy templates, runbooks, test suites, and safety libraries teams can adopt or adapt.
  • AI Compass
    Delivers microservices for policy enforcement, prompt and tool governance, bias checks, PII protection, content safety, and audit logging. Delivered as APIs for any pipeline or agent framework.

What Responsible AI Services Deliver

Our Responsible AI services span from governance frameworks to industry-specific accelerators, embedding governance, control, and accountability across the AI lifecycle. Delivered alongside our Agentic Managed Services (AMS) model, they help keep controls, monitoring, and compliance evidence active from deployment through ongoing operation.

What Responsible AI Services Deliver
  • AI Governance Frameworks
    Establishes policies, controls, and operating procedures aligned to leading standards, with clear roles, decision rights, escalation paths, and documentation. These frameworks make compliance practical.
  • Bias Mitigation & Explainability Tools
    Applies fairness testing and explanation methods so model and agent behavior is easier to understand, monitor, and trust. Findings are surfaced in forms product owners, risk teams, and auditors can act on.
  • Retrofit Services
    Adds observability, fairness testing, and policy enforcement to existing AI systems without requiring a full rebuild. This provides a faster path to raising confidence in live deployments.
  • Risk & Compliance Automation
    Automates lineage capture, approval workflows, exception handling, retention rules, and evidence generation so compliance can scale with delivery. This reduces manual effort while improving traceability and audit readiness.
  • Secure Model Lifecycle Management
    Extends governance across model development, deployment, drift monitoring, provenance, and dependency management in cloud and edge environments. It helps teams apply consistent controls wherever AI runs.
Customer Story

SRE-led RunOps for a GenAI Platform At a Multinational Corporation

SRE-led RunOps for a GenAI Platform At a Multinational Corporation
Customer Story

Global Travel Platform Enhances Service Reliability and Operational Efficiency with HARC

Global Travel Platform Enhances Service Reliability and Operational Efficiency with HARC
Customer Story

A Leading Logistics Company Overcomes Legacy System Challenges with GenAI

A Leading Logistics Company Overcomes Legacy System Challenges with GenAI

Insights

Frost & Sullivan’s 2025 North America Competitive Strategy Leadership Recognition for Excellence in AI Services. Insights

Frost & Sullivan’s 2025 North America Competitive Strategy Leadership Recognition for Excellence in AI Services.

Hitachi Digital Services Introduces HARC Agents Insights

Hitachi Digital Services Introduces HARC Agents

Hitachi Digital Services Launches HARC Agents to Power Enterprise-Grade Agentic AI Insights

Hitachi Digital Services Launches HARC Agents to Power Enterprise-Grade Agentic AI

How We Work

RAI for Enterprise

We help clients integrate RAI principles across teams, tools, and governance layers – from ideation to enterprise-wide deployment.

Advisory & Professional Services
Build & Accelerate
Agentic Managed Services
Responsible AI That’s Ready for Reality
Why Hitachi Digital Services

Responsible AI That’s Ready for Reality

We help you move from AI principles to production-ready control, connecting policy, runtime oversight, and evidence so AI can scale with confidence.

  • Policy to code: Turns requirements into tests, controls, and runtime checks.
  • Decision transparency: Makes model and agent behavior easier to explain and verify.
  • Continuous observability: Monitors drift, safety, reliability, and cost in production.
Our Experts Our Experts
Our Experts
Vitor Domingos
Vitor Domingos
Head of AI, EMEA
LinkedIn
Miguel Gaspar
Miguel Gaspar
Principal Engineer, EMEA
LinkedIn

Partners

FAQ

Responsible AI (RAI) is the governance layer of enterprise AI systems. It provides the policies, guardrails, and operational controls needed to keep models and agents fair, transparent, secure, and accountable throughout the lifecycle.

In agentic systems, governance must extend beyond models to include agent actions, tool usage, and workflow outcomes. Hitachi Digital Services’ R2O2 framework and HARC for AI platform monitor agent behavior, enforce guardrails, and maintain audit trails across multi-agent systems.

We provide governance frameworks, engineering patterns and managed operations. R2O2 standardizes policy, risk, and documentation. HARC for AI delivers production observability, guardrails, and cost control.

We support multiple global frameworks, including the EU AI Act, NIST AI Risk Management Framework, ISO 42001, and internal governance standards. Our services can be tailored to meet both industry-specific and jurisdictional requirements.

Yes. We provide tools and accelerators to retrofit RAI controls to existing models – including lineage tracing, fairness audits, and risk scoring – without rewriting the entire pipeline.

Our governance and operations framework for Reliable, Responsible, Optimal and Observable AI. It integrates policy-to-code controls, risk management and traceability into your delivery workflows.