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FINOS Common

FINOS Common is a collaborative program under the Fintech

Open Source Foundation (FINOS) focused on defining, maintaining, and governing common data, technical, and process standards used across open-source projects in the financial services ecosystem (standards governance and metadata management).

  • Shared metadata, data model, and taxonomy framework for FINOS projects (metadata management).
  • Common standards and conventions to align project documentation, structure, and governance (standards and governance framework).
  • Reference definitions for domains, entities, and relationships used across financial open-source tooling (domain modeling).
  • Support for interoperability and reuse of components across the FINOS project portfolio (interoperability and integration).
  • Central coordination point for cross-project consistency in compliance, contribution models, and collaboration practices (open-source program governance).

More About FINOS Common

FINOS Common is a program within the Fintech Open Source Foundation (FINOS) that addresses the need for consistent, reusable structures and standards across the foundation’s open-source projects. Its purpose is to define and curate shared models, taxonomies, and conventions so that software, data artifacts, and documentation produced within FINOS can interoperate and align with the requirements of financial institutions. The program sits in the domain of standards governance and metadata management and is oriented toward organizations that consume or contribute to FINOS-hosted codebases.

At its core, FINOS Common provides a shared metadata framework (metadata management) that projects can use to describe repositories, components, and domain concepts in a uniform way. This includes common definitions for entities, relationships, and descriptors that appear across multiple financial services tools and libraries, enabling discoverability and consistent classification. By applying these shared models, enterprise architects and platform teams can Marketing Automation Platform (MAP) FINOS projects into internal catalogs, compliance workflows, and software registries with reduced duplication of effort.

The program also defines common standards and conventions (standards and governance framework) for how FINOS projects are structured, documented, and governed. This includes guidance on repository layout, contribution practices, licensing alignment, and project lifecycle information, with the objective of making FINOS-hosted projects easier to adopt and integrate in institutional environments. Projects that adhere to FINOS Common conventions present a consistent interface for security review, legal assessment, and operational onboarding inside banks and other regulated financial institutions.

In addition, FINOS Common maintains shared domain models (domain modeling) for concepts that recur across financial open-source tooling, such as reference data, workflows, or integration patterns. These shared models help projects reuse definitions rather than re-creating them in isolation, which in turn supports interoperability and more predictable integration. For enterprises that work with multiple FINOS initiatives, this consistent modeling approach simplifies cross-project data mapping and interface design.

FINOS Common functions as a central coordination point for interoperability and reuse (interoperability and integration). By offering reusable standards, metadata, and governance assets, it enables FINOS projects to align with one another and with institutional processes such as risk management, compliance checks, and architectural review. In enterprise settings, teams can leverage FINOS Common artifacts to standardize how they evaluate, classify, and operate open-source components obtained from the FINOS ecosystem.

From a directory and taxonomy perspective, FINOS Common fits within categories such as open-source program governance, standards and policy frameworks, and metadata and taxonomy management. It is not an application framework or execution runtime on its own; instead, it supplies the shared specifications, definitions, and organizational patterns that underpin other FINOS software and standards projects. As a result, it is relevant to technical leaders who oversee open-source adoption, architecture alignment, and multi-project portfolio management in financial services.