Identity Orchestration Glossary: Routing, Fallback and eID-Native Architecture
Last updated: August 10, 2026
The vocabulary of multi-method identity verification, made simple.
This glossary defines six concepts behind multi-method identity verification: identity orchestration, the orchestration layer, dynamic routing, identity fallback, method coverage, and eID-native architecture.
Each entry starts with a plain-language definition and adds the practical detail underneath.
For the regulatory vocabulary of eIDAS 2.0 and the EUDI Wallet, see the EUDI & eIDAS 2.0 glossary pt. 1.

What is identity orchestration?
The layer that connects many identity verification methods - national eIDs, government wallets, bank identity, biometrics and document checks - and decides which one to use for each user.
In practice: Without orchestration, every verification method is a separate integration: its own API, its own failure modes, its own evidence format. An orchestration layer replaces that with one integration that routes each user to the right method, handles failures, and returns results in a single format with a consistent audit trail. The need scales with geography: one market with one eID is manageable by hand; twenty markets with different eIDs, wallets and regulatory requirements is an orchestration problem.
Who this applies to: Any organisation verifying identities in more than one market or through more than one method - which, after the EUDI Wallet acceptance mandate takes effect in December 2027, will include organisations across the Art. 5f sectors - among them banking and financial services, telecommunications, health, energy, transport and education.
What is an orchestration layer?
The piece of infrastructure that sits between your product and the identity methods you accept. Your systems talk to the layer; the layer talks to everything else.
In practice: The orchestration layer owns the complexity that would otherwise land on your engineering team: method integrations, protocol differences, certificate management, version updates, and the routing and fallback logic that decides what each user sees. The build-vs-buy question for identity infrastructure is really a question about who operates this layer. Either way, the test is the same: can you add the next method - a new wallet, a new national eID, a new attestation type - without rebuilding what already works?
Who this applies to: Engineering and product teams designing onboarding and authentication flows; compliance teams that need one evidence format regardless of which method verified the customer.
What is dynamic routing in identity verification?
Automatically choosing the best verification method for each user, instead of showing everyone the same flow.
In practice: Routing decisions run on context: the user's country and what is available there, the assurance level the use case legally requires, which methods are currently up, and what converts best for that segment. A Danish user gets MitID; a Swedish user gets BankID; a user whose national method is down gets the next best option instead of an error. Static flows - one method for everyone - leave conversion on the table in every market where a better local method exists.
Related: Routing chooses the first method; identity fallback handles what happens when that method fails. The two together are what makes a multi-method flow usable in production.
What is identity fallback?
What happens when a verification method fails or is unavailable: the flow switches to another method instead of ending with an error.
In practice: Methods fail for ordinary reasons - an expired credential, a provider outage, a user who does not have the expected wallet or eID. A fallback sequence defines what comes next: wallet fails, try the national eID; eID unavailable, fall back to bank identity or a document check. Without a defined sequence, every failure is an abandoned onboarding. Fallback is also the overlooked half of EUDI Wallet readiness: for years after the 2027 acceptance mandate, most customers will still arrive without a wallet, and serving them is a fallback problem before it is an integration problem.
Who this applies to: Anyone measuring onboarding conversion, and any organisation planning EUDI Wallet acceptance - the wallet becomes one path in the flow, not the flow.
What is method coverage?
The range of verification methods a platform supports, and in which countries they actually work.
In practice: Coverage claims need two checks. First, live versus listed: a method on a marketing page is not the same as a maintained, production integration. Second, coverage versus adoption: a country can have a formally notified eID that almost nobody uses, so supporting it adds little real reach. Meaningful comparison asks how many methods are live, in which markets, at which assurance levels, and how quickly new methods - like the national EUDI Wallets arriving through 2026 and 2027 - get added.
Related: For country-by-country data on which eID schemes are live and actually adopted, see our analysis of European eID markets.
What is eID-native architecture?
An identity stack built around government eIDs and wallets as the primary verification method, with document scans as the fallback - not the other way round.
In practice: Most identity stacks grew up document-first: photograph an ID, run OCR, check liveness, and later bolt individual eIDs on the side. An eID-native architecture inverts that order. The primary path consumes structured, cryptographically signed data from government schemes and wallets; the document scan exists as a fallback for users and markets where no eID is available. The difference matters more every year: a signed credential from a state registry cannot be generated by AI the way a document image can, arrives as data rather than pixels, and maps directly to the verification pathways AMLR recognises. Authologic's platform is built eID-native.
Who this applies to: Organisations choosing or re-evaluating identity infrastructure - the document-first versus eID-native distinction predicts how well a platform will age as eIDs, wallets and AI-generated fraud all grow.
How do these concepts fit together?
An orchestration layer connects your product to many verification methods - that practice is identity orchestration.
Within the flow, dynamic routing picks the best method for each user, and identity fallback catches the cases where that method fails.
Method coverage measures how far the whole system reaches, and eID-native architecture describes which method family sits at the centre of it.
These concepts are infrastructure vocabulary; the regulatory vocabulary - relying parties, PID, verifiers - lives in the EUDI & eIDAS 2.0 glossary pt. 1.
To test your own setup against both, see the EUDI Wallet Readiness Checklist and the SCA & AMLR Readiness Checklist.
Changelog
- August 10, 2026 - Initial publication (6 entries).
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Jarek Sygitowicz
jaroslaw.sygitowicz@authologic.comAuthologic
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