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Context Components · Knowledge Graph

Everything your knowledge graph needs,
before you build it.

A knowledge graph is an ontology filled in with real records. Atlan supplies the parts that make yours trustworthy: the ontology, column-level lineage reverse-engineered from real SQL, and the operational metadata that says which records can be trusted.

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The blueprint, filled in

A knowledge graph with real entities drawn from CRM, billing, and network operations, joined by named relationships, with a refund-eligible conclusion derived by the ontology rule rather than entered by anyone.

REAL ENTITIES · DRAWN FROM THREE SYSTEMS
CRMMaya· Customer
↓ holds
BILLINGacct·4471· Account
↓ receives
BILLINGINV-7782· Invoice
↓ contains
BILLINGCHG-9912· $40 roaming
↓ occurredDuring
NETWORK OPSBK-07· outage · 2h
DERIVED BY THE RULE · ENTERED BY NOBODY
INFERRED · charge CHG-9912 ⇒ refundEligible = truesymbolic, deductive, traceable to the rule that fired
VIRTUALalways fresh · nothing copied
MATERIALIZEDfast traversal · full inference
The ontology says what can be true. The graph records what is, and derives the rest.

Trusted by AI-forward enterprises

"Atlan captures Workday's shared language to be leveraged by AI via its MCP server. As part of Atlan's AI labs, we're co-building the semantic layer that AI needs."

Joe DosSantos

VP Enterprise Data & Analytics, Workday

"AI initiatives require more context than ever. Atlan's metadata lakehouse is configurable, intuitive, and able to scale to hundreds of millions of assets."

Andrew Reiskind

Chief Data Officer, Mastercard

"We have Atlan as the metadata plane across our tech stack, independent of where technology is. We have one place to define the data, understand what it means, and where it comes from."

Oliver Gomes

VP Analytics & Strategy, FOX

"With Atlan we cataloged over 18 million assets and 1,300+ glossary terms in our first year, so teams can trust and reuse context across the exchange."

Kiran Panja

Managing Director, Cloud & Data Engineering, CME Group

WTF IS THE CONTEXT LAYER

A bi-weekly live series for AI leaders and builders. One burning question per episode, an open AMA floor, and guests who've actually built context infrastructure.

EP 05How Do Graph Databases and the Context Layer Fit Together?Wed, Aug 19 · 11 AM ET
Emil Eifrem and Prukalpa Sankar agree on the problem: enterprise AI fails when agents can't navigate the relationships that give data meaning. Emil argues graph databases are the foundation — the layer that maps how entities and relationships connect. Prukalpa argues: graph databases store structure, but the context layer carries meaning, governance, and lineage. They join Austin to work toward a shared picture of what enterprise AI actually needs.
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How Do Graph Databases and the Context Layer Fit Together?
THE AI CONTEXT GAP

One question.
Three kinds of context.

Knowledge is which records are involved. Expertise is how to move between them. Norms are what the graph is allowed to conclude.

Knowledge

Which records are involved?

Store 412 from ops, its region from the org system, last week's readings from the POS feed — one connected graph

Expertise

How do you get from one to the next?

Traverse store to region to service metric — a few hops from a known starting point, in milliseconds

Norms

What is it allowed to conclude?

Only what the rules permit. Every conclusion is traceable to the rule that fired

CONTEXT COMPONENTS

No agent runs on
a knowledge graph alone.

It holds what is true right now. What a metric means, which table is certified, and how to act on the answer sit elsewhere.

How do I traverse business knowledge?

The ontology plus the instance data that conforms to it, drawn from CRM, billing, and network operations. Because the rules travel with it, the graph derives conclusions nobody entered.

Explore Knowledge Graph
ONTOLOGY + INSTANCE DATACRMBILLINGBILLINGNETWORK OPSMayaacct·4471INV-7782charge $40BK-07holdsreceivescontainsoccurredDuringDERIVED BY THE RULE, NOT ENTERED BY ANYONEINFERRED · charge $40 ⇒ refundEligible = truetraceable to the rule that fired

ONTOLOGY + INSTANCE DATA

CRMMaya
holds
BILLINGacct·4471
receives
BILLINGINV-7782
contains
BILLINGcharge $40
occurredDuring
NETWORK OPSBK-07

DERIVED BY THE RULE, NOT ENTERED BY ANYONE

INFERRED · charge $40 ⇒ refundEligible = truetraceable to the rule that fired
HOW IT WORKS

A knowledge graph is only as good
as the context you feed it.

Real records from real systems, mapped onto the meaning you already declared.

A graph is only as good as the records feeding it. Atlan connects across systems of record, data, knowledge, and work, and maps what it finds onto the entities and relationships your ontology declares.

Lineage/SQL Parsing
SQL Query Parsed
CREATE TABLErevenue_aggASSELECT o.amountASnet_revenue, o.customer_id, d.regionFROMorders_raw oJOINdim_customers d ON o.customer_id= d.id
TABLE
ORDERS_RAW
ANALYTICS / PROD
#amount
Acustomer_id
TABLE
DIM_CUSTOMERS
ANALYTICS / PROD
Aregion
TABLE
REVENUE_AGG
ANALYTICS / PROD
#net_revenue
Acustomer_id
Aregion

A wrong rule is a wrong answer at scale, so rules get owners.

A graph that derives conclusions is only trustworthy if the rules producing them are owned and tested. Atlan manages entities, relationships, and rules the way software manages code.

Context Studio/Repositories/finance-revenue
revenue.yml
synced to 4 agents
Last updated 2h ago · v3.1.2
name: "revenue"
domain: finance
version: 3.1.2
definition: "Net sales after returns, post-tax"
window: "Q4 — fiscal year close"  # updated by AI · approved by @jsmith
consumers:  # Cortex · LangGraph · Genie · Claude
framework: any # LangGraph, Cortex, Genie, or your own
Recent activity
AI drafted revenue.yml v3.1.2 — updated fiscal window definition
2h ago
@jsmith approved — no changes needed
2h ago
Pushed to 4 agents — all consuming v3.1.2 automatically
2h ago
Consuming this repo
Snowflake Cortex
LangGraph
Databricks Genie
Claude (MCP)
All on v3.1.2

The context behind your graph, reachable by every agent you run.

A graph an agent cannot reach at query time is a diagram. Atlan serves traversal through whichever interface the consumer speaks, and stores the underlying context in open formats.

Cortex Analyst
Natural Language Query
Run
Powered by Snowflake Cortex
via Atlan MCP
Fetching context from Atlan MCP...
→ resolve_metadata · search_assets
MMetricCertified
revenue
Net sales after returns, post-tax
@jsmith
TTable
98/100
orders_fact
owner: Data Engineering
Primary transaction table
Generated SQLQuery ready
1SELECT
2 product_line,
3 SUM(net_sales) AS revenue -- metric defined by Atlan
4FROM orders_fact
5WHERE fiscal_quarter = 'Q4'
6GROUP BY product_line;

See the context layer, built live.

Watch Atlan engineers bootstrap, test, and deploy enterprise context on real data — from cold start to production-ready agents.

The Enterprise Context Layer Architecture in ActionWed, Aug 26 · 11 AM ET
The teams winning with AI are not the ones with the best models. They are the ones building context that compounds. Watch Atlan mine knowledge from your existing stack, build and certify a context layer through a development lifecycle, and deploy it to any agent platform.
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Isabella Steains
Isabella SteainsStrategic Solutions Engineer

Connect the facts once.
Let every agent traverse them.