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CEN Workshop Agreement

Status: Working Group Working Draft

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Contents 1 Foreword 2 Introduction 3 Scope 4 Normative references 5 Terms and definitions 6 Symbols and abbreviations 7 How to start with XBRL. Supervisory Perspective 8 How to implement and extend XBRL taxonomies 9 Architecture, Methodology and Best Practices 10 Management and maintainability 11 How to transmit, process, and validate instances 12 Bibliography

Foreword

This document is a working document. This document has been prepared by CEN/WS XBRL, the secretariat of which is held by NEN. This document is a working document.

Introduction

The set of recommendations included in this document aim to facilitate the implementation of European National Supervisors to adopt XBRL in any of the reporting frameworks. The following chapters will provide guidance on the use, understanding, preparation, and extension of their filings in eXtensible Business Reporting Language (XBRL).

This guidance is in the form of notes in association with the pertaining requirements clause and uses the terms “should” (recommendation), “may” (allowance) and “can” (possibility). Organizations wishing to implement this CWA would be expected to consider all recommendations where the term “should” is used.

Scope

The guidance and recommendations included in this document have been created for regulatory filings in the context of European supervisory reporting.

In this document, “regulatory filings” encompasses authoritative financial reporting standards and generally accepted accounting principles/practices (or GAAP), regulatory reports whose subject matter is primarily financial position and performance and related explanatory disclosures, and data sets used in the collection of financial statistics; it excludes transaction- or journal-level reporting, primarily narrative reports (for example, internal controls assessments) and non-financial quantitative reports (for example, air pollution measurements).

Normative references

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The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN xyz:199x, Title of the european standard. EN ab c:199x, General title of series of parts — Part c: Title of part.

Terms and definitions

For the purposes of this document, the following terms and definitions apply / the terms and definitions given in … and the following apply.

Term1 

description on text for term1

Term2 

description on text for term2

Symbols and abbreviations

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How to start with XBRL. Supervisory Perspective

Collect information related to introduction to XBRL for regulators. Focus on European implementation frameworks: from early corep to last finrep and EIOPA PoC

How to implement and extend XBRL taxonomies

This chapter links to CWA2. Obtain as much references as possible in order to compile information to explain the documents to read first. If not clear, compile and rewrite sections and chapters here

Architecture, Methodology and Best Practices

This chapter links to CWA1. Use also references to documents drafted before and if not enough clear for roll-out package as a new supervisor, rewrite or add sample information to them.
Some reference document to analyze are:

1. "An Architecture for European XBRL Taxonomies" where a description in the following topics is described:

   • Supporting concepts(Owner, Model supporting schema, Namespaces)
   • Public elements
   • Dictionary of concepts (Metrics, Dimensions, Families, Perspectives, Domains, Explicit domain members and hierarchies)
   • Reporting requirements layer (Frameworks, Taxonomies, Tables, Modules, Validation rules)
   • Architecture

2. "Data Point Modelling Methodology"
3. "Abstract description of the model represented in taxonomies following the DPM approach"
4. "Comparison of Conceptual, Logical and Physical models vs. the Data Point Modelling."

Management and maintainability

This chapter should include all topics related to how the supervisor is facing the taxonomy frameworks usage, repository location and management, mirror and caching procedures to check different and current version and also extension visibility to make the harmonization of taxonomies transparent to other countries (if possible, at least as a recommendation on best practices). This would cover localization (in terms of how to physically locate), availability and download. It should be worth noting the necessity to add a link or task to CWA2 in order to see the possiblity to study the use of taxonomy package descriptor (from corefiling) as sugested by coordinator group management

How to transmit, process, and validate instances

This chapter should include all topics related to how the supervisor is facing the taxonomy frameworks usage,

Bibliography

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