projectleven

Projectleven, often stylized as projectleven, is an international, open-source initiative focused on building a modular data platform to enable collaborative research, public-sector analytics, and responsible data sharing. It provides a pluggable core and a set of standardized interfaces designed to work across domains such as urban planning, environmental science, and public health. The project emphasizes interoperability, data lineage, and privacy-preserving analytics.

Architecture and components: a core data hub, reusable processing pipelines, policy and access controls, and an API layer. It uses a microservices model with containerized services, implementing both Python and Rust components. The data hub supports multiple storage backends (SQL and time-series stores), while the processing layer enables batch and streaming workflows. APIs primarily use REST and GraphQL to integrate with external systems.

Governance and licensing: projectleven is governed by a multi-stakeholder governance body including a Steering Council, Technical Steering Committee, and community working groups. It operates on an open-source license (e.g., Apache 2.0) and maintains a public contribution guideline and roadmap.

History and impact: Launched by a consortium of universities, public agencies, and tech companies in 2019, projectleven released its first public version in 2020. Since then, it has attracted dozens of partners and hundreds of contributors, with deployments in several cities for data portals, environmental monitoring, and research centers. It is regarded as a flexible framework that can be adapted to varied data governance requirements.

Future directions: Ongoing work focuses on strengthening real-time data capabilities, expanding data-model standards, and improving accessibility for resource-constrained environments, with plans to broaden international adoption and interoperate with external open-data ecosystems.