Federation Architecture for Cross-Source Queries

What Is Federation Architecture for Data Queries?面向数据查询的联邦架构是什么？

Place this specific workflow in context with the federated queries and data virtualization guide, which connects the definitions, alternatives, validation steps, and related implementation guides.

可通过联邦查询与数据虚拟化指南理解本专题在整体流程中的位置；该指南串联了定义、替代方案、验证步骤与相关实施文章。

A data-query federation architecture is a blueprint for issuing one governed query across separately operated sources through a shared query layer, a global planner, source connectors, and a metadata catalog. The engine decomposes the request, pushes eligible work to sources, combines bounded results, and returns an answer with policy, freshness, and lineage evidence.

数据查询联邦架构是一种蓝图：通过共享查询层、全局规划器、来源连接器和元数据目录，对独立运营的数据源发出一个受治理查询。引擎拆解请求，把适合的工作下推到来源，组合有边界结果，并返回带策略、新鲜度与血缘证据的答案。

This is narrower than generic organizational, cloud, or identity federation. Those patterns coordinate trust among administrative domains; they do not by themselves explain how a cross-source SQL or analytical request is parsed, planned, executed, joined, limited, and reconciled. For this page, “federation architecture” means the data-access path for cross-source queries.

这比通用组织联邦、云联邦或身份联邦更具体。后者协调管理域之间的信任，却不必说明跨源SQL或分析请求如何解析、规划、执行、连接、限流与核对。本页的“联邦架构”专指面向跨源查询的数据访问路径。

Architecture test: trace one metric from BI request to semantic definition, global plan, connector operation, source query, bounded result, final join, and evidence. If any hop is implicit, the design is incomplete.

架构测试：把一个指标从BI请求追踪到语义定义、全局计划、连接器操作、来源查询、有界结果、最终连接与证据。任何一跳不明确，设计就不完整。

When to Use a Federation Architecture何时采用联邦架构

Federation fits when participating systems have legitimate reasons to keep separate administration but must provide a dependable shared outcome. Common drivers include multiple legal entities, sovereign cloud regions, independent product teams, acquired platforms, partner ecosystems, sector exchanges and hybrid environments. It is especially useful when central migration is impractical, ownership cannot legally transfer, or local release cycles must continue.

当参与系统有正当理由维持独立管理，同时又必须提供可靠的共同结果时，联邦架构较合适。常见驱动因素包括多个法律实体、主权云区域、独立产品团队、并购平台、合作伙伴生态、行业交换网络与混合环境。当集中迁移不可行、所有权无法依法转移，或本地发布节奏必须继续时，联邦尤其有价值。

Do not choose it merely to avoid decisions. A small system under one authority usually benefits from a simpler centralized design. Federation also fails when participants will not publish stable contracts, accept shared minimums, fund local operations, exchange evidence or honor offboarding. The pattern adds coordination, compatibility, trust and observability costs; those costs need a concrete autonomy benefit.

不要仅为了回避决策而选择联邦。由单一权威管理的小型系统通常更适合简单的集中式设计。如果参与方不愿发布稳定契约、接受共同最低要求、为本地运营提供资源、交换证据或遵守退出流程，联邦同样会失败。该模式会增加协调、兼容、信任与可观测性成本，必须有明确的自治收益作为理由。

Use it: distinct owners, meaningful autonomy, recurring exchange, shared obligations and enough operating maturity.适合：所有者不同、自治有实际意义、交换持续发生、存在共同义务且运营成熟度足够。
Avoid it: one owner, temporary integration, no enforceable contracts, no evidence path or no team responsible for federation services.不适合：单一所有者、临时集成、无可执行契约、无证据路径，或没有团队负责联邦服务。

Core Federation Architecture Components and Layers联邦架构的核心组件与分层

Participant and domain layer参与方与域层

Defines administrative boundaries, owners, local systems, offered capabilities, obligations and the authority each domain retains.

定义管理边界、所有者、本地系统、提供的能力、义务，以及每个域保留的权力。

Trust and identity layer信任与身份层

Establishes parties, credentials, keys, trust anchors, assertions, relying relationships, revocation and assurance levels.

建立参与方、凭据、密钥、信任锚、断言、依赖关系、撤销与保证等级。

Discovery and metadata layer发现与元数据层

Publishes available services or assets, endpoints, schemas, versions, policy references, health and ownership.

发布可用服务或资产、端点、Schema、版本、策略引用、健康状态与所有权。

Policy and governance layer策略与治理层

Defines participation rules, permitted purposes, obligations, decision rights, exceptions, disputes and evidence retention.

定义参与规则、允许目的、义务、决策权、例外、争议与证据留存。

Interface and protocol layer接口与协议层

Standardizes request, response, event, error, version negotiation, semantic and compatibility contracts.

标准化请求、响应、事件、错误、版本协商、语义与兼容契约。

Execution and exchange layer执行与交换层

Carries data, service calls or compute work directly between peers or through an optional broker, proxy or gateway.

通过点对点路径，或可选的代理、转发器与网关传递数据、服务调用或计算工作。

Operations and evidence layer运营与证据层

Observes availability, latency, policy decisions, changes, incidents, lineage, reconciliation and service-level outcomes.

观察可用性、延迟、策略决策、变更、事件、来源、核对与服务级结果。

Lifecycle layer生命周期层

Controls vetting, onboarding, activation, renewal, suspension, offboarding, key rotation and contract retirement.

控制审查、准入、启用、续期、暂停、退出、密钥轮换与契约退役。

These are logical responsibilities, not a mandatory product stack. One component may serve several layers, and a layer may be distributed. Document ownership and failure behavior for each responsibility before selecting software.

这些是逻辑职责，并非强制的产品栈。一个组件可以承担多个层次，一个层次也可以分布式实现。选择软件前，应先记录每项职责的所有者与失败行为。

Separate the Federation Control Plane from the Exchange Plane分离联邦控制面与交换面

Logical plane separation clarifies dependency and failure逻辑平面分离可明确依赖与失败
Plane平面	Typical responsibilities典型职责	Design question设计问题
Control plane控制面	Participant registry, trust, discovery, policy, configuration, topology and lifecycle参与方注册、信任、发现、策略、配置、拓扑与生命周期	Can established peers continue safely if control services are unavailable?控制服务不可用时，已建立关系的对等方能否安全继续？
Exchange plane交换面	Requests, events, data, service calls, compute results and policy enforcement请求、事件、数据、服务调用、计算结果与策略执行	Where does traffic travel, and where can it be filtered, queued or exposed?流量经过哪里，又会在哪里被过滤、排队或暴露？
Evidence plane证据面	Audit events, decisions, versions, lineage, reconciliation and incident records审计事件、决策、版本、来源、核对与事件记录	Can an independent reviewer reconstruct what happened?独立复核者能否重建实际发生的过程？

Plane separation does not require physical separation. Its value is analytical: a catalog outage should not automatically stop permitted peer traffic; a stale policy cache must have a defined fail-open or fail-closed rule; a broker failure should not silently drop transactions; and an audit pipeline failure must trigger a known response rather than erase accountability.

平面分离不要求物理分离，其价值在于分析依赖：目录中断不应自动停止已获准的点对点流量；过期策略缓存必须有明确的开放失败或关闭失败规则；代理故障不得静默丢弃事务；审计管道故障也应触发已知响应，而不是抹去问责。

Choose a Federated Architecture Pattern by Trust and Traffic依据信任与流量选择联邦架构模式

No single topology is correct for every federation没有一种拓扑适合所有联邦
Pattern模式	Strength优势	Cost or risk成本或风险	Useful fit适用情形
Pairwise mesh点对点网状	Direct control and no mandatory traffic intermediary直接控制，无强制流量中介	Relationships, keys and compatibility grow rapidly关系、密钥与兼容管理快速增长	Few stable peers with strong bilateral trust数量少且双边信任稳定的参与方
Hub or proxy中心或代理	Simpler onboarding, routing and policy observation准入、路由与策略观察较简单	Concentration, bottleneck and intermediary exposure集中风险、瓶颈与中介暴露	Many participants needing common mediation大量参与方需要共同中介
Authority plus direct exchange权威服务加直接交换	Common trust and discovery without carrying all traffic共享信任和发现，但不承载全部流量	Peers still need compatible enforcement and observability对等方仍需兼容执行与可观测性	Scaled ecosystems with capable participants参与方能力成熟的规模化生态
Hierarchical or bridged federations分层或桥接联邦	Connects regions or sectors while preserving sub-federations连接区域或行业，同时保留子联邦	Trust translation, loops and dispute jurisdiction are harder信任转换、环路与争议管辖更复杂	Large multi-region or multi-sector environments大型多区域或多行业环境

NIST's Cloud Federation Reference Architecture distinguishes direct and intermediary relationships and describes federation managers across administrative domains. Treat the document as a reference vocabulary, not a mandate to deploy one central broker. Map its concepts to your assets, threat model and operating authority.

NIST《云联邦参考架构》区分直接关系与中介关系，并描述跨管理域的联邦管理者。应把该文档当作参考词汇，而不是必须部署单一中央代理的命令；需要把其概念映射到自身资产、威胁模型与运营权力。

Design Governance and Failure Behavior Into the Data Path把治理与故障行为设计进数据路径

Authenticate the caller, authorize the semantic object, translate the decision into source-level access, and retain attribution through every stage. Minimize connector privileges, protect credentials, encrypt traffic, prevent sensitive values from entering logs or spill, and apply row, column, masking, purpose, export, and result-size controls. A global engine must never become a policy bypass.

验证调用者身份，授权语义对象，把决策转换为来源级访问，并在每个阶段保留归属。最小化连接器权限、保护凭据、加密流量，防止敏感值进入日志或溢写，并应用行列、脱敏、目的、导出与结果大小控制。全局引擎绝不能成为策略绕过路径。

Define fail-closed, partial-result, and approved fallback behavior per metric. One source may time out, return stale data, deny a subset, or change schema while others succeed. Expose missing sources, observation timestamps, filtered populations, retries, and cache age. A partial total must never look complete, and a valid zero must be distinguishable from unavailable data.

应按指标定义关闭失败、部分结果和获批回退行为。某来源可能超时、返回过期数据、拒绝一个子集或改变Schema，而其他来源仍成功。应公开缺失来源、观察时间戳、被过滤群体、重试与缓存年龄。部分总计不得看似完整，有效零值必须与数据不可用区分。

How to Design and Implement Federation Architecture如何设计和实施联邦架构

Bound one federation outcome.限定一个联邦结果。
Choose a recurring cross-domain use case, named participants, exchanged capability and measurable acceptance criteria. Exclude unrelated modernization.
选择一个持续发生的跨域用例、具名参与方、交换能力与可衡量验收条件，排除无关现代化工作。
Map domains and retained authority.映射域与保留权力。
Document owners, boundaries, legal duties, local decisions, shared decisions, escalation and the party allowed to accept risk.
记录所有者、边界、法律义务、本地决策、共享决策、升级路径与有权接受风险的主体。
Select the trust and traffic topology.选择信任与流量拓扑。
Decide whether trust, discovery and traffic are pairwise, brokered, authority-assisted or hierarchical. Draw each dependency and failure boundary.
决定信任、发现与流量采用点对点、中介、权威辅助还是分层方式，并画出每项依赖与故障边界。
Define shared contracts.定义共享契约。
Specify identity, interfaces, semantics, policy references, errors, versions, compatibility windows, change notice, evidence and retirement.
规定身份、接口、语义、策略引用、错误、版本、兼容窗口、变更通知、证据与退役。
Build the smallest control plane.构建最小控制面。
Implement only the participation, trust, discovery, configuration and audit functions needed by the pilot. Assign an operator and recovery target to each.
仅实现试点所需的参与、信任、发现、配置与审计功能，并为每项功能指定运营者和恢复目标。
Connect one end-to-end exchange.连接一个端到端交换。
Exercise authentication, authorization, discovery, routing, validation, local enforcement, response, reconciliation and evidence capture.
实际执行认证、授权、发现、路由、验证、本地执行、响应、核对与证据采集。
Run failure and lifecycle tests.运行故障与生命周期测试。
Test unavailable registries, expired credentials, incompatible versions, malicious input, broker loss, audit loss, participant suspension and offboarding.
测试注册表不可用、凭据过期、版本不兼容、恶意输入、代理丢失、审计丢失、参与方暂停与退出。
Expand only from evidence.仅依据证据扩展。
Add participants or capabilities after pass conditions hold and ownership, capacity, support, cost and dispute handling remain credible.
仅在通过条件成立，且所有权、容量、支持、成本与争议处理仍可信后，才增加参与方或能力。

Where InfiniSynapse Fits in a Federation ArchitectureInfiniSynapse在联邦架构中的位置

InfiniSynapse's public website describes direct connections to supported databases and multi-source analysis. Within an approved federation, that can help a team evaluate a bounded question across connected sources. The public product page does not establish InfiniSynapse as a federation manager, trust authority, identity provider, protocol broker, participant registry, metadata catalog, governance workflow, policy engine, universal gateway or access-control system.

InfiniSynapse官网描述了对受支持数据库的直接连接与多源分析。在获批的联邦范围内，这可帮助团队评估跨已连接来源的有边界问题。公开产品页并未证明InfiniSynapse是联邦管理器、信任权威、身份提供方、协议代理、参与方注册表、元数据目录、治理工作流、策略引擎、通用网关或访问控制系统。

Keep participant approval, trust agreements, credentials, least-privilege source roles, network controls, local permissions, masking, policy enforcement, audit, retention, schema contracts and offboarding in the responsible systems. Before analysis, prepare approved sources, named owners, permitted schemas, keys and grain, semantic definitions, expected filters and a known reconciliation sample.

参与方批准、信任协议、凭据、最小权限源角色、网络控制、本地权限、脱敏、策略执行、审计、留存、Schema契约与退出流程应保留在负责系统中。分析前，请准备获批来源、具名所有者、允许的Schema、键与粒度、语义定义、预期过滤条件与已知核对样本。

Evaluate an approved multi-source analysis path评估获批的多源分析路径

When those controls and inputs are ready, use the InfiniSynapse Web App to evaluate connected-source analysis and reconcile representative results. It does not create or enforce the surrounding federation.

当这些控制与输入准备就绪后，可使用InfiniSynapse Web App评估已连接来源分析，并核对代表性结果。它不会创建或执行外围联邦体系。

Evaluate connected-source analysis评估已连接来源分析

Federation Architecture FAQ联邦架构常见问题

What is federation architecture in software?

软件中的联邦架构是什么？

Federation architecture is a blueprint for independently administered software domains to cooperate through shared participation, trust, identity, discovery, policy, interface, evidence and lifecycle mechanisms while retaining local authority. It specifies common obligations, local discretion, traffic paths and failure behavior.

联邦架构是一种蓝图：由不同主体独立管理的软件域通过共享的参与、信任、身份、发现、策略、接口、证据与生命周期机制协作，同时保留本地权力。它规定共同义务、本地裁量、流量路径与故障行为。

Does federation architecture mean the Australian building style?

Federation architecture是否也指澳大利亚建筑风格？

The unmodified phrase can refer to Australia's Federation-era architectural style. In software, cloud and distributed-systems contexts, it instead describes cooperation among autonomous administrative domains. This guide uses the technical meaning and explicitly separates the building intent.

是的，不带修饰词的英文短语可以指澳大利亚联邦时期的建筑风格。在软件、云与分布式系统语境中，它描述自治管理域之间的协作。本指南采用技术含义，并明确与建筑搜索意图区分。

How is federated architecture different from centralized architecture?

联邦式架构与集中式架构有何不同？

A centralized architecture places shared capabilities and authority under one owner. A federated architecture preserves meaningful local administration while participants accept selected common contracts. Federation adds coordination, trust, compatibility and evidence costs in exchange for retained autonomy.

集中式架构把共享能力与权力置于一个所有者之下。联邦式架构保留有实际意义的本地管理，同时由参与方接受选定的共同契约。联邦以增加协调、信任、兼容与证据成本，换取保留自治。

What are the core components of federation architecture?

联邦架构有哪些核心组件？

Core logical responsibilities include participant and domain management, trust and identity, discovery and metadata, policy and governance, interfaces and protocols, exchange execution, operations and evidence, and onboarding through offboarding. They are responsibilities, not a mandatory product list.

核心逻辑职责包括参与方与域管理、信任与身份、发现与元数据、策略与治理、接口与协议、交换执行、运营与证据，以及从准入到退出的生命周期。这些是职责，而不是强制产品清单。

Does every federation need a central broker?

每个联邦都需要中央代理吗？

No. Peers can exchange directly, use a shared authority only for trust and discovery, route through an intermediary, or bridge multiple sub-federations. Choose topology from participant scale, trust, network policy, traffic sensitivity, observability and failure concentration rather than assuming one broker.

不需要。对等方可以直接交换，只使用共享权威建立信任与发现，也可通过中介路由，或桥接多个子联邦。应依据参与规模、信任、网络策略、流量敏感度、可观测性与故障集中度选择拓扑，而不是默认一个代理。

How do you test federation architecture?

如何测试联邦架构？

Test approved exchange, unauthorized and malformed requests, control-service and intermediary outages, contract-version changes, policy enforcement, reconciliation, suspension and offboarding. Passing evidence should connect identities, decisions, versions, routes, source execution, results and recovery.

应测试获批交换、未授权与畸形请求、控制服务与中介中断、契约版本变更、策略执行、结果核对、暂停与退出。通过证据应能连接身份、决策、版本、路由、源端执行、结果与恢复。

Official and Primary Sources官方与第一方来源

These references provide vocabulary and examples for cloud federation, identity federation, access control and trusted data exchange. They do not prescribe one universal implementation or certify a particular product. Validate applicable laws, contracts, protocols, deployment models, licenses and controls for your environment.

这些资料为云联邦、身份联邦、访问控制与可信数据交换提供词汇和示例，但不会规定一个通用实现，也不为特定产品认证。请验证适用于自身环境的法律、合同、协议、部署模式、许可与控制。