The Open Metadata Access Services (OMAS) provide domain-specific services for data tools, engines and platforms to integrate with open metadata.
The access services are as follows:
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asset-consumer - create connectors to access assets.
The Asset Consumer OMAS is designed for applications that are using OCF connectors to access data stores, APIs and functions such as analytics. The Asset Consumer OMAS provides a factory function for the connectors, the ability to retrieve all the metadata about the asset and the ability to add feedback on the asset.
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asset-manager - manage exchange of metadata with third party metadata catalogs and asset managers.
The Asset Manager OMAS is typically called by the Catalog Integrator OMIS to send and receive asset information, including schemas, profiles, policies and lineage information with a third party asset manager. Typical examples of asset managers include data catalogs that are managing metadata for a collection of data assets for a data-serving solution. The asset manager is also called by the Lineage Integrator OMIS to capture design lineage from data engines and other processing services. It also supports the Glossary Browser OMVS and Glossary Manager OMVS.
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asset-owner - manage metadata and feedback for owned assets.
The Asset Owner OMAS provides services for an asset owner to curate metadata about their asset(s) and understand how these assets are being used and governed.
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community-profile - manage personal profiles and communities.
The Community Profile OMAS supports the administration for a community and related user profiles. These communities are involved in reviewing and crowd-sourcing knowledge about the data assets and their use.
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data-manager - exchange metadata with a data manager.
The Data Manager OMAS provides technology-specific APIs to enable technologies that manage collections of data such as database servers, file systems, file managers and content managers to publish metadata to the metadata repositories about the changing structures and content stored in the data platform. It is called from the API Integrator OMIS, Database Integrator OMIS, Display Integrator OMIS, Files Integrator OMIS and Topic Integrator OMIS.
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data-science - manage metadata for analytics.
The Data Science OMAS provides access to metadata for data assets, connections and projects, plus the ability to maintain metadata about data science notebooks and models and log activity during the analytics development process. It is designed for data science and analytics management tools.
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design-model - exchange design model content from tools and standards.
The Design Model OMAS provides the ability to manage information from all types of design models. These models may come from tools or be part of a packaged standard. This content is useful for governance, system integration and software development.
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digital-architecture - support the design and architecture of the digital services that support the business.
The Digital Architecture OMAS provides the ability to define information standards, definitions, solution blueprints and models for an organization. It is designed for architecture tools. It is able to support the definition and management of a digital service through concept to deployment.
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digital-service - manage metadata for digital services and products.
The Digital Service OMAS provides services for a managing the lifecycle of a Digital Service and any associated products.
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governance-engine - manage metadata for an operational governance engine.
The Governance Engine OMAS provides APIs and events that retrieve and manage metadata for governance engines. This OMAS has been replaced by the Governance Server OMAS.
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governance-program - set up and manage a governance program.
The Governance Program OMAS provides the ability to maintain a governance program in the open metadata repositories. It is designed for governance and CDO tools.
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governance-server - manage metadata for an operational governance server.
The Governance Server OMAS provides APIs and events that retrieve and manage metadata for the Engine Host and Integration Daemon governance servers.
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it-infrastructure - manage metadata about deployed infrastructure.
The IT Infrastructure OMAS provides support for the design and planning of the information infrastructure that supports the data assets. This includes the development of system blueprints that link down to the metadata about real infrastructure components. This metadata helps in the linkage between information governance metadata and IT infrastructure management (ITIL) metadata typically stored in a Configuration Management Database (CMDB).
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project-management - manage definitions of projects for metadata management and governance.
The Project Management OMAS supports the metadata associated with projects and campaigns. These projects and campaigns may be for governance projects, or generic data use projects.
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security-manager - exchange security related metadata with security services such as Apache Ranger.
The Security Manager OMAS provides the services to exchange security tags with access control and data protection technology services. It is called by the Security Integrator OMIS.
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software-developer - deliver useful metadata to software developers.
The Software Development OMAS provides access to metadata needed to build compliant APIs, data stores and related software components.
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stewardship-action - manage metadata as part of a data steward's work to improve the data landscape.
The Stewardship Action OMAS provides services for managing exceptions discovered in the information landscape that need correcting. These exceptions may be quality errors, missing or outdated information, invalid licensing, job failures, and many more. The Stewardship Action OMAS also enables the review and triage of the exceptions, simple remediation and status reporting.
The OMASs run in either a Metadata Access Point or a Metadata Access Store. They can be configured and activated individually or as a complete set. The administration services provide the ability to configure the access services.
Each OMAS typically supports a REST API, and optionally, a topic where it publishes notifications of interest to its users, and a topic where new metadata requests can be posted to the OMAS.
It also has a Java client that provides access to its API and topics. This java client is embedded in the Engine Services, Integration Services and View Services.
More information on the OMASs can be found in the Egeria Documentation.
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License: CC BY 4.0, Copyright Contributors to the ODPi Egeria project.