Project Governance

OpenTitan Governance Model

OpenTitan operates on a model that ensures transparency, accountability, high-quality engineering and collaborative ecosystem growth.

The OpenTitan governance framework separates controls into a five-layer model. Each layer functions as a distinct, closed-loop process to balance rapid open-source innovation with the requirements of secure silicon design.

OpenTitan Five-Layer Closed Loop Governance Model Overview
Open Silicon Governance
OpenTitan Five-Layer Governance Model
Layer 1: Strategy
Strategy
Layer 2: Change Management
Change
Layer 3: Design
Design
Layer 4: Build
Build
Layer 5: Integration
Integration

Layer 1: Strategic Direction

01 / Strategy

Strategic governance establishes OpenTitan's long-term vision, funding structures, and fundamental rules of engagement. This governance loop keeps the project aligned with its commercial and academic stakeholders.

The Governing Board has equal representation from all gold members and operates within the project's foundational Technical Charter.

It agrees the overall direction of the project and the key goals, and ensures that all high-level initiatives remain legally compliant and structurally sound.

Strategy loop block diagram
Governing Board & Technical Charter Control

Layer 2: Architecture & Evolution

02 / Change Management

Technical direction and significant architectural changes are made through a transparent peer-review ecosystem. The Technical Committee has equal representation from all gold and silver members.

Change is implemented through formal proposals, each written as an RFC (Request for Comments). By enforcing a strict feedback and amendment cycle, this governance loop ensures technical decisions are driven by project merit and ecosystem consensus before any implementation begins.

Change management loop block diagram
RFC Process & Technical Committee Review

Layer 3: Functional Cohesion

03 / Design

Day-to-day tactical design, microarchitectural alignment, and block-level verification strategies occur within specialized, domain-focused Working Groups. Serving as the functional engineering governance loop, these groups bring subject matter experts together to collaborate continuously on specifications and interfaces. This keeps individual components aligned with the broader SoC architecture and ensures that critical security vectors remain fully hardened.

Design loop block diagram
Working Groups & Specification Alignment

Layer 4: Implementation Quality

04 / Build

At the core of OpenTitan's development lifecycle are decentralized yet strictly governed development practices.

All codebase and design modifications use a collaborative workflow requiring code changes to pass through Pull Requests (PRs), human code reviews, and explicit maintainer approval. This continuous governance cycle guarantees clear ownership, maintains high standards, and prevents uncontrolled changes from altering the design.

Build loop block diagram
Peer Review & Maintainer Sign-off

Layer 5: Automated Integration

05 / Integration

At the lowest level, quality is maintained through automated Integration governance. This complements human skills with an extensive Continuous Integration (CI) pipeline backed by public metrics.

Every proposed code commit triggers a rigorous automated battery of syntax checking (linting), Design Verification (DV) regressions, and physical FPGA-targeted implementations. Automated assessment at this level rejects flawed changes and requests commit approval only when all performance, timing, and security verification metrics are met.

Integration loop block diagram
Continuous Integration, Linting & Gating
Principles & Practices

Open Silicon Governance