Introduction

Overview
This Architecture Description provides a comprehensive blueprint for the construction and operation of the Digital Passport system (or DP system), an innovative solution designed to securely store data pertaining to specific entities and execute code that operates on such data.
The DP system comprises of individual IT-components called Digital Passports (DPs or 'passports') and the processes for their governance, management, provisioning, and operation. It is characteristic for a DP that it securely stores data that pertains to a single entity, which we refer to as its 'subject' (as well as related data), and - upon request - executes scripts to manipulate or utilise this data.
Scope
The DP system supports DPs of various types, each tailored to a specific kind of entity, with 'Digital Product Passport' (DPP) being one such subclass. The architecture description covers the core components, interfaces, processes, and policies of the DP system, while also detailing the specificities related to different subclasses of DPs, such as 'Digital Battery Passport' or 'Digital Car Passport'.
Purpose
The aim of this document is to serve as a roadmap for stakeholders involved in the design, development, deployment, and operation of the DP system. By providing a detailed and clear description of the system architecture, the document aids in aligning efforts, ensuring interoperability, facilitating communication, and driving decision-making throughout the lifecycle of the DP system.
Structure
This architecture follows the structured framework as outlined by Ian Sommerville in his book "Software Engineering" (Sommerville, 2015). Following this introduction, subsequent chapters cover system architecture, component descriptions, system configuration, data definitions, system evolution, and system validation. Each chapter dives into the specifics of its topic, providing comprehensive details to form a complete picture of the DP system's architecture.
Audience
The intended audience for this document includes system architects, software developers, project managers, system operators, and other stakeholders involved in the creation and operation of the DP system. This document serves as a reference and guide, providing a common understanding of the DP system and its components, thereby supporting decision-making and implementation efforts.
Acronyms and Abbreviations
The list of acronyms and abbreviations needs to be checked for completeness.
| Acronym | Full text |
|---|---|
| AC | Active Configuration |
| ACP | Access Control Policy |
| DP | Digital Passport |
| DPP | Digital Product Passport |
| ECP | Execution Control Policy |
| FB | Functional Blueprint |
| RCP | Response Control Policy |