Waltz

Your Enterprise Architecture Visible. Connected. Understood.

What is Waltz?

Question

Waltz is the open source platform that turns fragmented architecture information into a living, connected map of applications, data flows, people, capabilities and change initiatives.

It helps enterprise architecture, engineering, portfolio and risk teams answer critical questions with evidence instead of spreadsheets.

Why We Built Waltz

Enterprise teams need to make high-impact technology decisions quickly, but architecture data is often fragmented, hard to trust, and hard to connect across systems. Waltz addresses these core pains.

Scattered architecture data

Fragmented & Outdated Data

Critical architecture information lives in spreadsheets, disconnected tools, and tribal knowledge, making a reliable current-state view hard to maintain.

Disconnected systems and navigation

Slow, Cross-System Analysis

Answering simple questions about capabilities, applications, data flows, and ownership often requires stitching together evidence from many systems.

Incomplete topology

Audit & Regulatory Pressure

Regulatory and risk programmes like DORA, MiFID and Basel require accurate, explainable topology and lineage evidence, but many organisations struggle to produce it on demand.

Waltz Connects the Dots

Turn scattered architecture data into a shared operating model for change, governance and risk.
Open to the organisation, enriched by the people closest to the estate.

Integrated system flows

Living Architecture Map

Visualise your entire application estate and how every system connects, from logical data flows to physical implementations.

Business unit technology footprint

Org-to-App Compliance

Navigate from a business unit to its full technology footprint instantly — costs, capabilities, data sources and team ownership.

Data lineage and flows

Data Lineage & Golden Sources

Track upstream and downstream data flows across your entire organisation. Identify authoritative data sources and flag non-compliant consumers.

People and ownership view

Crowdsourced Accuracy

Empower every employee to contribute and correct architecture data. The best source of information about your landscape is the people who work in it.

Future state architecture

Roadmaps & Future State

Document planned application changes, retirements, and replacements. Align your technology roadmap with your strategy.

Assessment and data capture

Surveys & Assessments

Issue targeted questionnaires to application owners. Collect structured data for compliance programmes, rationalisation exercises, and audits.

Aggregated reporting

Custom Report Grids

Build powerful aggregated views. Slice your technology estate by any taxonomy, org unit, or data type — no SQL required.

Business unit technology footprint

KPIs and Metrics

Define and track your own architecture metrics. Measure the proportion of applications with golden source data, or the percentage of applications in scope for a regulatory programme.

Integrated system flows

Integrates, Doesn't Replace

Waltz complements PowerDesigner, Archimate, Sparx and other EA tools. Aggregate data from your existing systems without ripping anything out.

Built for the Problems That Matter Most

Regulatory Compliance

Generate application topology reports required for DORA, MiFID II, BCBS 239 and other regulatory programmes in minutes, not weeks.

Regulatory compliance topology

Application Rationalisation

Identify duplicated capabilities, legacy applications, and cost-saving consolidation opportunities across your entire estate.

Application portfolio grouping

Data Lineage & Governance

Track critical data flows from source to consumer. Define golden sources and measure compliance against them.

Data lineage flows

M&A and Transformation Programmes

Quickly understand the technology landscape of acquired entities. Model future-state architectures for major programmes.

Future-state architecture

Used by

Waltz is used by teams working through regulatory scope, application rationalisation, lineage and major transformation in complex enterprise environments.

Case Study

Data Lineage & Provenance

This case study shows how Waltz helps organisations turn fragmented architecture and data lineage information into an auditable, decision-ready view. The result is faster regulatory response, clearer ownership, and stronger confidence in change programmes.

Recognition & Coverage

Waltz has been recognised by FINOS, covered by external industry publications, and discussed by contributors and adopters across the ecosystem.

FINOS

OpenUK Award

Waltz received industry recognition through the OpenUK Finance Award, adding independent validation beyond the project itself.

FinTech Futures

FinTech Futures

FinTech Futures covered Deutsche Bank's decision to open source Waltz, helping position the project in a wider financial technology context.

The Stack

The Stack

The Stack highlighted Deutsche Bank's open source approach and the role Waltz plays in that broader enterprise engineering story.

Deutsche Bank

Deutsche Bank

Deutsche Bank's own announcement remains one of the clearest statements of why Waltz was opened up and where it was being applied.

NatWest

NatWest

NatWest publicly highlighted code contribution by its Markets teams to Waltz, providing a visible signal of adoption and participation beyond the original contributing organisation.

HMx Labs

HMx Labs

HMx Labs is actively engaged with Waltz, offering support, education, consultancy, and bespoke enhancements for enterprise needs.

Background & Community Material

For broader context, see the original FINOS introduction to Waltz and the FINOS write-up covering the Waltz team’s public project presentation.

Talk to Experts

Have questions about Waltz for your organisation? Book time directly with our team to explore how Waltz can address your specific architecture and governance challenges.

Schedule a 30-minute conversation to discuss your use case, ask questions, and see a tailored demo.

Book a Meeting

Quick Setup

No lengthy forms - book directly in your calendar.

Expert Guidance

Get answers from practitioners who use Waltz daily.

Tailored to You

Discuss your specific architecture and governance needs.

Demo

Demo website

Explore the demonstration website with realistic sample data covering applications, ownership, flows, reporting and change views.

Get Involved

Waltz is built in the open by practitioners across the enterprise architecture community. Whether you want to shape the roadmap, contribute code, or share how you use Waltz, you’re welcome.

Join the Waltz mailing list

Subscribe to updates and releases.

Collaborate on GitHub

Report issues, request features, and contribute improvements.

Attend community sessions

Find working sessions and roadmap discussions in the FINOS calendar.

Share your use case

Tell us how your team uses Waltz.