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wb-147: Add ecosystem overview diagram to architecture overview #199

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wb-147 Basic ecosystem overview drawing
eklaver May 14, 2026
91ee3fa
Update blueprint/03-architecture-overview.md
eklaver May 21, 2026
e7e1169
Refine ecosystem overview wording
lalc May 30, 2026
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Merge pull request #2 from lalc/refine-ecosystem-wording
eklaver Jun 2, 2026
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Updated picture and wordings
eklaver Jun 17, 2026
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8 changes: 7 additions & 1 deletion blueprint/03-architecture-overview.md
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Expand Up @@ -10,11 +10,17 @@ While the previous chapter describes the regulatory and architectural frameworks

## The Ecosystem at a Glance
The EUDI Wallet and EBW ecosystem follows the common three-party attestation model. In this model, three primary actors interact: issuer, holder and verifier. A trust framework supports these actors by providing the trust anchors used for validation.
1. **Holder** – the wallet controlled by a natural or legal person.
1. **Holder** – the wallet controlled by a natural person or economic operator.

@malinnorlander malinnorlander Jun 1, 2026

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Holder is the role of a natural person or an EO, not the wallet. Suggest to rephrase as: Natural prson or economic operator recieving, storing and sharing credentials.

2. **Issuer** – an entity that issues attestations to the Holder.

@malinnorlander malinnorlander Jun 1, 2026

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Suggests to rephrase as: A trusted source that verifies the holder's information and issues cryptographically signed credentials of that information.

@sander sander Jun 2, 2026 •
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Instead of “trusted source”, “trust service provider”? To keep the distinction from authentic sources.

In general however I’d prefer to drop the issuer-holder-verifier terminolgoy from D4.1 and just use ARF terminology such as PID/EAA Provider, Relying Party Instance, etc.

@malinnorlander malinnorlander Jun 3, 2026

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Instead of “trusted source”, “trust service provider”? To keep the distinction from authentic sources.

In general however I’d prefer to drop the issuer-holder-verifier terminolgoy from D4.1 and just use ARF terminology such as PID/EAA Provider, Relying Party Instance, etc.

I support trust service provider, but not ARF terminology as it rarely uses normed, without being standardized, terms and/or definitions. Imo, holder/issuer/verifier is easily understandably, following norms and used by many outside of ARF space.

3. **Verifier** – a relying party that receives and validates attestations presented by the Holder.

@malinnorlander malinnorlander Jun 1, 2026

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Suggests to rephrase as: an economic operator or natural person that requests and verifies the authenticity and validity of a holder's credential.

4. **Trust framework** – the infrastructure used to validate trust relationships between ecosystem participants (described in Chapter 6).

The following diagram illustrates the ecosystem at a glance.

![Ecosystem overview](../images/ecosystem-overview.png)

The Issuers will use the European Business Wallet to issue attestations to the Holder. The Holder will use the EUDI Wallet to present attestations to the Verifier. The Verifier will use the European Business Wallet to validate the attestations presented by the Holder. The foundation of the ecosystem is the Trust framework where Issuers will publish keys, identifiers and schemas while Verifier have to register as Relying Party.
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## System Landscape
The diagram below illustrates the baseline trust topology of the EU wallet ecosystem. Issuers provide attestations to holders, holders present them to verifiers, and all actors validate trust relationships using the trusted lists.
The trusted lists specify the recognised participants in schemes for electronic identification and trust services.
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@peppelinux peppelinux Jul 15, 2026

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plese use mermaid to facilitate the review process with commitable suggestions, raster images are heavy for this

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