Design Requirement

R5.2 - Data minimization

Not only the parties involved in the KYC process but also the de facto data exchanged should be restricted to what is necessary, because digital data are much easier to collect and abuse than their analog counterparts.

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design-knowledge/kyc-framework-ssi-r5-2

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Producer label: R5.2
Source paper: Designing a Framework for Digital KYC Processes Built on Blockchain-Based Self-Sovereign Identity
Timestamp: 2026-08-05T00:00:00+00:00
Bundle path: design-knowledge/kyc-framework-ssi-r5-2.md

bankingdesign-requirementidentity-ssikyckyc-framework-ssiverifiable-credentials

Design requirement R5.2: Data minimization

Not only the parties involved in the KYC process but also the de facto data that are exchanged should be restricted to what is necessary, because digital data are much more comprehensive and easier to collect and abuse than their analog counterparts. We call this requirement data minimization.

Source paper

This design requirement is proposed by Designing a Framework for Digital KYC Processes Built on Blockchain-Based Self-Sovereign Identity (Vincent Schlatt, Johannes Sedlmeir, Simon Feulner, Nils Urbach, 2022).

Addresses

Design objective Objective 5: Privacy

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1 Design Objective

design-knowledge/kyc-framework-ssi-do5

Objective 5 - Privacy

Protecting customers' privacy is a key feature of an eKYC process, requiring compliance with the need to know principle and data minimization.

bankingdesign-objectiveidentity-ssikyc+2

1 Paper

papers/kyc-framework-ssi

Designing a Framework for Digital KYC Processes Built on Blockchain-Based Self-Sovereign Identity

The paper derives six design objectives (16 sub-requirements) for an SSI-based eKYC framework and demonstrates how blockchain-based self-sovereign identity can solve KYC challenges without violating data-protection regulation, deriving three nascent design principles that theorize blockchain's role for SSI: use blockchain only for public data, anticipate an ecosystem of various ledgers, and enable decentralization at the edge.

bankingblockchaindesign-science-researchidentity-ssi+3

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Designing a Framework for Digital KYC Processes Built on Blockchain-Based Self-Sovereign Identity
Paper
Source
Designing a Framework for Digital KYC Processes Built on Blockchain-Based Self-Sovereign Identity
Target
R5.2 - Data minimization
Link label
Design requirement R5.2: Data minimization
Status
Resolved
Derived heading context: Design knowledge

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3 of 3 concepts · 5 directed relationships

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{
  "type": "design-requirement",
  "title": "R5.2 - Data minimization",
  "description": "Not only the parties involved in the KYC process but also the de facto data exchanged should be restricted to what is necessary, because digital data are much easier to collect and abuse than their analog counterparts.",
  "resource": "https://doi.org/10.1016/j.im.2021.103553",
  "source_paper": "Designing a Framework for Digital KYC Processes Built on Blockchain-Based Self-Sovereign Identity",
  "label": "R5.2",
  "tags": [
    "kyc-framework-ssi",
    "design-requirement",
    "identity-ssi",
    "kyc",
    "banking",
    "verifiable-credentials"
  ]
}