This document provides a consolidated set of rules and associated guidelines as found and defined in the existing parts of the ISO/IEC 15944 series. NOTE Not all parts of the ISO/IEC 15944 series have rules, that is ISO/IEC 15944-6, ISO/IEC 15944-14 and ISO/IEC 15944-20.

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This document: — specifies a group of structured and inter-related concepts pertaining to traceability as a legal or regulatory requirement in the Open-edi context, in addition to concepts that appear in other parts of ISO/IEC 15944 series these concepts having the characteristics of cultural adaptability through the use of multilingual terms and definitions; — provides additional specifications for Open-edi scenarios and scenario components from the perspective of traceability as required by internal or external constraints in business transactions; — provides a more detailed specification for business transactions regarding aspects of traceability, including refined models of Person, Data and Process in support of the ability for Open-edi to incorporate elements or characteristics of traceability in its information bundles (including their semantic components) and business processes; — realizes specifications and descriptions from the traceability requirements as rules and guidelines, to provide recommendations or guidance on Open-edi practices; and, — provides revised primitive Open-edi scenario templates for traceability, integrating the modifications to the template from other existing parts of ISO/IEC 15944 series. This document can be used by Open-edi implementers (including business modellers and system designers) and Open-edi standard developers in specifying Open-edi scenarios, developing Open-edi related standards, and implementing Open-edi rules and guidelines for Open-edi activities. This document does not specify the FSV aspects of traceability, internal behaviour requirements of an organization, or traceability as a metrological concept. Detailed exclusions to the scope of this document are provided in Annex H.

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    60 pages
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  • Draft
    64 pages
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  • Draft
    64 pages
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This document specifies the fundamental principles governing coded domains, identification and description of the coded domains from the BOV view, the rules governing the rule-base of coded domains, the rules for management of ID codes, rules for specifying Human Interface Equivalents (HIEs) to an ID Code, the relations between the coded domain and controlled vocabularies, the rules governing the registration of coded domains as re-usable business objects, and the IT-enablement of coded domains. The document is applicable to the use of standards, specifications, authority files, etc., of a “codes representing X” nature being used in electronic business transactions among parties engaged in Open-edi, which pertains to flows of information using information bundles which cause pre-defined (or pre-definable) changes in the states of the IT systems of the parties to such electronic data interchanges. Detailed exclusions to the scope of this document are provided in Annex I.

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    105 pages
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  • Draft
    111 pages
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  • Draft
    111 pages
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This document specifies the business operational view of an implementation of an Open-edi Distributed Business Transaction Repository (OeDBTR), building on the principles and concepts defined in ISO/IEC 15944-4 of a business transaction. The repository stores the history of the transitions in states of the economic claim and/or other business entities that happen over the course of a business transaction, and does so for a collection of business events. These business events, comprised of transactions and their states, can be identified unambiguously so as to provide the ability to inspect or query the information at some point after the record has been made. The distributed nature of the repository offers users ubiquitous and robust access to the recorded history. A history of business transactions of market exchanges can be useful in auditing or other memoing-based activities, looking back at the immutable record of the interactions between parties. This document does not specify the Functional Services View of a particular implementation of an Open-edi Distributed Business Transaction Repository. For best performance, candidate technologies would likely exhibit properties of long-term permanence, robust immutability, decentralized access, distributed resilience, and fine-grained addressability.

  • Standard
    21 pages
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This document specifies the architecture of an enterprise canonical model. It defines the abstract model, conceptual model and physical model. This document is applicable to organizations implementing an enterprise-wide interoperability capability. Some implementers can find it useful in more targeted applications (e.g. departmental interoperability, projects).

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    18 pages
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This document specifies general trustworthiness and safety requirements applicable to operators of digital platforms within the sharing economy. While this document does not cover system requirements for digital platforms, the document is still beneficial for system development.

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    15 pages
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This document provides guidelines for sharing economy platform operators when verifying providers, including on-boarding, maintenance, and deactivation. This document applies to both digital platform operators and providers within the sharing economy.

  • Technical specification
    8 pages
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This document specifies the elements, among those defined in CMS digital signatures and CAdES digital signatures that enable verification of a digital signature over a long period of time. It does not give new technical specifications about the digital signature itself, nor new restrictions of usage of the technical specifications about the digital signatures which have already existed. NOTE CAdES digital signature is the extended specification of Cryptographic message syntax (CMS), used widely.

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    19 pages
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This document specifies the profiling rules of ISO 9735-1 to ISO 9735-9 that allow users of version 3 (ISO 9735:1988 and ISO 9735:1988/Amd.1:1992: Syntax version number: 3) to migrate to version 4 (ISO 9735:1998: Syntax version number: 4) with a minimum effort and cost.

  • Standard
    12 pages
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This document provides general sharing economy principles. It is intended to be used by all types and sizes of organization (e.g. commercial enterprises, government agencies, not-for-profit organizations).

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    5 pages
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  • Draft
    5 pages
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This document specifies the elements, among those defined in XAdES digital signatures, that enable verification of a digital signature over a long period of time. It does not give new technical specifications about the digital signature itself, nor new restrictions of usage of the technical specifications about the digital signatures which already exist. NOTE XAdES digital signatures is the widely-used extended specification of “XML-Signature Syntax and Processing”.

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    19 pages
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  • Draft
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As a connected standard of ISO 19626-1, this document defines the communication interactions between TCP system components and specifies their detailed interfaces — the processes and the APIs of the TCP system components. It provides the common communication interface for deployment and implementation of the system components, and their functions in a specific technology-neutral way to those who consider applying and establishing a TCP system.

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This document: — examines the basic concepts that have been developed for both cloud computing and Open-edi; — identifies key Open-edi concepts relevant to cloud computing; — identifies key cloud computing concepts relevant to Open-edi; — compares Open-edi model and cloud computing architecture and identifies mappings (similarities in whole or in part) between them using formal semantic modelling techniques.

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  • Draft
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This European Standard establishes a semantic data model of the core elements of an electronic invoice. The semantic model includes only the essential information elements that an electronic invoice needs to ensure legal (including fiscal) compliance and to enable interoperability for cross-border, cross sector and for domestic trade. The semantic model may be used by organizations in the private and the public sector for public procurement invoicing. It may also be used for invoicing between private sector enterprises. It has not been specifically designed for invoicing consumers.
This European Standard complies at least with the following criteria:
-   it is technologically neutral;
-   it is compatible with relevant international standards on electronic invoicing;
-   the application of this standard should comply with the requirements for the protection of personal data of Directive 95/46/EC, having due regard to the principles of privacy and data protection by-design, data minimization, purpose limitation, necessity and proportionality;
-   it is consistent with the relevant provisions of Directive 2006/112/EC [2];
-   it allows for the establishment of practical, user-friendly, flexible and cost-efficient electronic invoicing systems;
-   it takes into account the special needs of small and medium-sized enterprises as well as of sub-central contracting authorities and contracting entities;
-   it is suitable for use in commercial transactions between enterprises.

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This CEN Technical Specification (TS) contains the mapping between the semantic data model of an electronic invoice (EN 16931-1)
and the following syntax: UN/CEFACT XML Industry Invoice D16B. For each element in the semantic model (including sub-elements
or supplementary components such as Code List identifiers) it is defined which element in the syntax is to be used to contain its
information contents. Any mismatches between semantics, format, cardinality or structure are indicated.
Any rules to be followed when using the specific syntax are stated informally in this TS. Together with this TS a set of validation
artefacts is published, including formalisation of the rules.
In addition, the deliverable shall unambiguously define the code lists and, where applicable, the subset of codes to be used for each
coded element in the model of EN 16931-1 when using the UN/CEFACT XML Industry Invoice D16B syntax as defined in CEN/TS
16931-3-3. The deliverable must guide the user how and where to apply for additions to these code lists. It will be issued as an annex
to the existing text of CEN/TS 16931-3-3:2017

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This CEN Technical Specification (TS) contains the mapping between the semantic data model of an electronic invoice (EN 16931-1)
and the following syntax: UBL 2.1. For each element in the semantic model (including sub-elements or supplementary components
such as Code List identifiers) it is defined which element in the syntax is to be used to contain its information contents. Any
mismatches between semantics, format, cardinality or structure are indicated.
Any rules to be followed when using the specific syntax are stated informally in this TS. Together with this TS a set of validation
artefacts is published, including formalisation of the rules.
In addition, the deliverable shall unambiguously define the code lists and, where applicable, the subset of codes to be used for each
coded element in the model of EN 16931-1 when using the UBL 2.1 syntax as defined in CEN/TS 16931-3-2. The deliverable must
guide the user how and where to apply for additions to these code lists. It will be issued as an annex to the existing text of CEN/TS
16931-3-2:2017

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This European Standard establishes a semantic data model of the core elements of an electronic invoice. The semantic model includes only the essential information elements that an electronic invoice needs to ensure legal (including fiscal) compliance and to enable interoperability for cross-border, cross sector and for domestic trade. The semantic model may be used by organizations in the private and the public sector for public procurement invoicing. It may also be used for invoicing between private sector enterprises. It has not been specifically designed for invoicing consumers.
This European Standard complies at least with the following criteria:
-   it is technologically neutral;
-   it is compatible with relevant international standards on electronic invoicing;
-   the application of this standard should comply with the requirements for the protection of personal data of Directive 95/46/EC, having due regard to the principles of privacy and data protection by-design, data minimization, purpose limitation, necessity and proportionality;
-   it is consistent with the relevant provisions of Directive 2006/112/EC [2];
-   it allows for the establishment of practical, user-friendly, flexible and cost-efficient electronic invoicing systems;
-   it takes into account the special needs of small and medium-sized enterprises as well as of sub-central contracting authorities and contracting entities;
-   it is suitable for use in commercial transactions between enterprises.

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This document specifies the mapping between the semantic model of an electronic invoice, included in EN 16931 1 and the Cross Industry Invoice in the UN/CEFACT XML syntax. For each element in the semantic model (including sub-elements or supplementary components such as Identification scheme identifiers) it is defined which element in the syntax is to be used to contain its information contents. Any mismatches between semantics, format, cardinality or structure are indicated.

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This document specifies the mapping between the semantic model of an electronic invoice, included in EN 16931-1 and the UBL 2.1 syntax (ISO/IEC 19845). For each element in the semantic model (including sub-elements or supplementary components such as Identification scheme identifiers) it is defined which element in the syntax is to be used to contain its information contents. Any mismatches between semantics, format, cardinality or structure are indicated.

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This document applies in case a CIUS is produced as a specification with the objective of registering it in the appropriate registry. This document also establishes requirements for the steps to be taken in the process of creating Core Invoice Usage Specifications (CIUS) as defined in EN 16931-1. Furthermore this document provides guidance for the creation and implementation of a CIUS.
The following points are the focus:
- steps that need to be taken in consideration to avoid unnecessary proliferation and fragmentation in the use of CIUSs;
-  guidance on the creation and implementation of CIUSs, with a quality control objective.
It should be noted that it is planned to apply the same principles and processes to extensions that are documented in a separate document.

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This CEN Technical Specification (TS) contains the mapping between the semantic data model of an electronic invoice (EN 16931-1) and the following syntax: UN/EDIFACT INVOIC D16B. For each element in the semantic model (including sub-elements or supplementary componentts sucha as Code List identifiers) it is defined which element in the syntax is to be used to contain its information contents. Any mismatches between semantics, format, cardinality or structure are indicated. Any rules to be followed when using the specific syntax are stated informally in this TS. Together with this TS a set of validation artefacts is published, including formalisation of the rules.

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This European Standard establishes a semantic data model of the core elements of an electronic invoice. The semantic model includes only the essential information elements that an electronic invoice needs to ensure legal (including fiscal) compliance and to enable interoperability for cross-border, cross sector and for domestic trade. The semantic model may be used by organizations in the private and the public sector for public procurement invoicing. It may also be used for invoicing between private sector enterprises. It has not been specifically designed for invoicing consumers.
This European Standard complies at least with the following criteria:
-   it is technologically neutral;
-   it is compatible with relevant international standards on electronic invoicing;
-   the application of this standard should comply with the requirements for the protection of personal data of Directive 95/46/EC, having due regard to the principles of privacy and data protection by-design, data minimization, purpose limitation, necessity and proportionality;
-   it is consistent with the relevant provisions of Directive 2006/112/EC [2];
-   it allows for the establishment of practical, user-friendly, flexible and cost-efficient electronic invoicing systems;
-   it takes into account the special needs of small and medium-sized enterprises as well as of sub-central contracting authorities and contracting entities;
-   it is suitable for use in commercial transactions between enterprises.

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    158 pages
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This document: — provides method(s) for identifying, in Open-edi modelling technologies and development of scenarios, the additional requirements in business operational view (BOV) specifications for identifying the additional external constraints to be applied to recorded information in business transactions relating to personal information of an individual, as required by legal and regulatory requirements of applicable jurisdictional domains; — integrates existing normative elements in support of privacy and data protection requirements as are already identified in ISO/IEC 14662 and ISO/IEC 15944-1, ISO/IEC 15944-2, ISO/IEC 15944-4, ISO/IEC 15944-5, ISO/IEC 15944-8, ISO/IEC 15944-9, and ISO/IEC 15944-10; — provides overarching, operational ?best practice' statements for associated (and not necessarily automated) processes, procedures, practices and governance requirements that act in support of implementing and enforcing technical mechanisms which support the privacy/data protection requirements necessary for implementation in Open-edi transaction environments; — focuses on the life cycle management of personal information i.e., the contents of SPIs (and their SRIs) related to the business transaction interchanged via EDI as information bundles and their associated semantic components among the parties to a business transaction. NOTE Privacy protection requirements (PPR) on information life cycle management (ILCM) and EDI of personal information as stated in this document serve as a minimum set of ILCM policy and operational requirements for all recorded information pertaining to a business transaction in particular, as well as ILCM implementation in any organization in general. This document does not specify the technical mechanisms, i.e., functional support services (FSV) which are required to support BOV-identified requirements. Detailed exclusions to the scope of this document are provided in Annex H.

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    136 pages
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This document applies in case a CIUS is produced as a specification with the objective of registering it in the appropriate registry. This document also establishes requirements for the steps to be taken in the process of creating Core Invoice Usage Specifications (CIUS) as defined in EN 16931-1. Furthermore, this document provides guidance for the creation and implementation of a CIUS.
The following points are the focus:
-   steps that need to be taken in consideration to avoid unnecessary proliferation and fragmentation in the use of CIUSs;
-   guidance on the creation and implementation of CIUSs, with a quality control objective.
It should be noted that it is planned to apply the same principles and processes to extensions that are documented in a separate document.

  • Technical specification
    32 pages
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This document specifies three business requirements for the visibility of logistics traffic flow based on the use cases and gap analysis in Annex A. It includes 1) LISS network architecture requirements, 2) visibility data interchange requirements between LISSs, and 3) visibility data interface and process requirements for an LISS network. These three business requirements are described further in Clause 6, Clause 7 and Clause 8 respectively. Furthermore, Clause 8 describes the requirement for a guideline for business participants and stakeholders in an LISS network such as logistics information service providers, single window/SSP operators, data providers and logistics data users. This document does not include standardization 1) at the level of logistics devices (areas of standardisation covered by ISO/TC 104, ISO/TC 204), 2) for ships, navigation and marine technologies (areas of standardisation covered by ISO/TC 8), or 3) related to international data exchange such as standards developed, published and maintained by UN/CEFACT, GS1, WCO which are referenced as appropriate in this document.

  • Standard
    24 pages
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This document defines the requirements about trusted communication in legal, administrative and technical considerations. This document shows a TCP system architecture to guarantee trusted communication and promote trusted services by providing trusted communication evidence as the proof. This document focuses on TCP at the view of 7th application layer of OSI (Open Systems Interconnection) Reference Model. The audiences are the policy makers for IT innovation such as dematerialization, legal experts regarding electronic activities, IT planners for single windows and secure transactions, IT service providers related to distributed networking and ledger, trusted system auditors, trusted communication concerned parties and so on.

  • Standard
    36 pages
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***Access to this CEN and SIST technical publication has been sponsored by the European Commission.***
This European Standard establishes a semantic data model of the core elements of an electronic invoice. The semantic model includes only the essential information elements that an electronic invoice needs to ensure legal (including fiscal) compliance and to enable interoperability for cross-border, cross sector and for domestic trade. The semantic model may be used by organizations in the private and the public sector for public procurement invoicing. It may also be used for invoicing between private sector enterprises. It has not been specifically designed for invoicing consumers.
This European Standard complies at least with the following criteria:
-   it is technologically neutral;
-   it is compatible with relevant international standards on electronic invoicing;
-   the application of this standard should comply with the requirements for the protection of personal data of Directive 95/46/EC, having due regard to the principles of privacy and data protection by-design, data minimization, purpose limitation, necessity and proportionality;
-   it is consistent with the relevant provisions of Directive 2006/112/EC [2];
-   it allows for the establishment of practical, user-friendly, flexible and cost-efficient electronic invoicing systems;
-   it takes into account the special needs of small and medium-sized enterprises as well as of sub-central contracting authorities and contracting entities;
-   it is suitable for use in commercial transactions between enterprises.

  • Standard
    158 pages
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This document provides a set of requirements, functionality and criteria for ensuring reliability and safety of mobile e-business. The specification of this document covers overall use cases for mobile e-business including simple inquiry of electronic documents, exchange of electronic documents for general transaction and even exchange of contract and payment documents. This can be applied to the most wireless protocols such as 3G, 4G and Wi-Fi, etc. This could be also used in the general mobile e-business area such as logistics, electronic trades, financing, manufacturing and service, and can be referenced by system developers of electronic transaction using mobile devices, mobile network service providers and users.

  • Standard
    29 pages
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This document specifies the elements defined in the international standards of ISO/ITU-T, ETSI and IETF RFC that enable at least a proof of existence of data objects and digital signatures and the preservation of the validity status of digital signatures over a long period of time used in validation. It provides the definitions of the proof of existence (PoE) attributes and clarification of the usage of (external) PoE objects, with digital signatures and trusted time values, which have already existed and can be used by the PoE attributes pointing to (external) PoE objects used in long term signature validation or preservation.

  • Standard
    37 pages
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This document considers requirements of the eIDAS regulation and use cases for qualified electronic seal creation devices and how these requirements may be met by standards.
These use cases will take into account differences in articles 26 and 36 of eIDAS on (sole) control of the signatory and seal creator on its signature / seal creation data, whilst also recognizing the commonalities.
This may possibly lead to identifying requirements for updates to existing standards.
The proposed table of content is the following:
1 Scope
2 References
3 Terms and definitions
3.1 Terminology
3.2 Abbreviations
4 A Consideration of Relevant Regulatory Requirements
5 Use cases
6 Analysis of features of Standard and Use cases
6.1 EN 419 211-x
6.1.1 Main Features relating to use cases
6.1.2 Applicability to use cases
6.2 EN 419 221-5
6.2.1 Main Features relating to use cases
6.2.2 Applicability to use cases
6.3 EN 419 241-1 / -2
6.3.1 Main Features relating to use cases
7 Summary of Conclusions

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    22 pages
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This document considers requirements of the eIDAS regulation and use cases for qualified electronic seal creation devices and how these requirements may be met by standards.
These use cases will take into account differences in articles 26 and 36 of eIDAS on (sole) control of the signatory and seal creator on its signature / seal creation data, whilst also recognizing the commonalities.
This may possibly lead to identifying requirements for updates to existing standards.
The proposed table of content is the following:
1 Scope
2 References
3 Terms and definitions
3.1 Terminology
3.2 Abbreviations
4 A Consideration of Relevant Regulatory Requirements
5 Use cases
6 Analysis of features of Standard and Use cases
6.1 EN 419 211-x
6.1.1 Main Features relating to use cases
6.1.2 Applicability to use cases
6.2 EN 419 221-5
6.2.1 Main Features relating to use cases
6.2.2 Applicability to use cases
6.3 EN 419 241-1 / -2
6.3.1 Main Features relating to use cases
7 Summary of Conclusions

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This document  provides  an overview  of  standards in the set  Business  Interoperability Interfaces (BII) for public  procurement. It covers the first part of the e- procurement chain. BII focus  on exchange of information between  business  partners. This brings in  scope all  electronic  communication between a contracting authority and an economic operator. Back-office information processing is out of scope.
To ensure interoperability each electronic communication will be described as follows:
- A choreography describes the sequence of transactions;
- A transaction describes all information elements exchanged between business partners;
- A syntax implementation guideline (SIG) provides the syntax bindings needed to implement the transaction
- A procurement procedure guideline identifies the position of the transactions in a procedure.

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This document provides an overview of e-ordering standards in the set Business Interoperability Inter-
faces (BII) for public procurement. E-ordering covers the e-sourcing and e-ordering business areas of the
e-procurement chain,  starting  from  the awarding of  the  contract  or  the  receiving  of  a  quotation  to the receipt of a despatch advise or a receiving advice for the goods or services that have been ordered.

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This document provides an overview of e-ordering standards in the set Business Interoperability Inter-
faces (BII) for public procurement. E-ordering covers the e-sourcing and e-ordering business areas of the
e-procurement chain,  starting  from  the awarding of  the  contract  or  the  receiving  of  a  quotation  to the receipt of a despatch advise or a receiving advice for the goods or services that have been ordered.

  • Technical report
    15 pages
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This document  provides  an overview  of  standards in the set  Business  Interoperability Interfaces (BII) for public  procurement. It covers the first part of the e- procurement chain. BII focus  on exchange of information between  business  partners. This brings in  scope all  electronic  communication between a contracting authority and an economic operator. Back-office information processing is out of scope.
To ensure interoperability each electronic communication will be described as follows:
- A choreography describes the sequence of transactions;
- A transaction describes all information elements exchanged between business partners;
- A syntax implementation guideline (SIG) provides the syntax bindings needed to implement the transaction
- A procurement procedure guideline identifies the position of the transactions in a procedure.

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This document provides an overview of eTendering standards in the set Business Interoperability Interfaces (BII) for public procurement. BII eTendering covers the tendering part of the e-procurement chain, starting from subscribing interest in a business opportunity till concluding the contract.
BII focus on exchange of information between business partners. This brings in scope all electronic communication between a contracting authority and an economic operator. Back-office information processing, like the evaluation of tenders, is out of scope.
To ensure interoperability each electronic communication will be described as follows:
- A procurement procedure guideline identifies the position of the transactions  in a procedure;
- A choreography describes the sequence of transactions;
- A transaction describes all  information elements exchanged between business partners;
- A syntax implementation guideline (SIG) provides the syntax bindings needed to implement the transaction.

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The  CEN/TC  440/WG5  has  developed  a  set  of  deliverables  to  support  interoperability  in  the  pre- and  post-award areas of public procurement. In particular, the deliverables cover the exchange of electronic product catalogues and related  documents  between  contracting  bodies  and  economic  operators  respectively  buyers  and  sellers.  An  electronic product catalogue contains specifications of products (goods and services) with their pricing. A catalogue is used to serve as a basis for ordering and all other following post-award processes. To ensure interoperability each electronic communication will be described as follows:
• A choreography describes the sequence of transactions;
• A transaction describes all information elements exchanged between business partners;
• A syntax implementation guideline (SIG) provides the syntax bindings needed to implement the transaction.

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This document provides an overview of eTendering standards in the set Business Interoperability Interfaces (BII) for public procurement. BII eTendering covers the tendering part of the e-procurement chain, starting from subscribing interest in a business opportunity till concluding the contract.
BII focus on exchange of information between business partners. This brings in scope all electronic communication between a contracting authority and an economic operator. Back-office information processing, like the evaluation of tenders, is out of scope.
To ensure interoperability each electronic communication will be described as follows:
- A procurement procedure guideline identifies the position of the transactions  in a procedure;
- A choreography describes the sequence of transactions;
- A transaction describes all  information elements exchanged between business partners;
- A syntax implementation guideline (SIG) provides the syntax bindings needed to implement the transaction.

  • Technical report
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The  CEN/TC  440/WG5  has  developed  a  set  of  deliverables  to  support  interoperability  in  the  pre- and  post-award areas of public procurement. In particular, the deliverables cover the exchange of electronic product catalogues and related  documents  between  contracting  bodies  and  economic  operators  respectively  buyers  and  sellers.  An  electronic product catalogue contains specifications of products (goods and services) with their pricing. A catalogue is used to serve as a basis for ordering and all other following post-award processes. To ensure interoperability each electronic communication will be described as follows:
• A choreography describes the sequence of transactions;
• A transaction describes all information elements exchanged between business partners;
• A syntax implementation guideline (SIG) provides the syntax bindings needed to implement the transaction.

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This Technical Report specifies the result of the test of the European standard on the semantic data model for the core elements of an electronic invoice. The test focusses on its practical application for an end user.

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  • Technical report
    85 pages
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0.1   Introduction
Directive 2014/55/EU states the following: "The standard shall be tested as to its practical application for an end user. The Commission shall retain overall responsibility for the testing and shall ensure that, during the performance of the test, special account be taken of the respect for the criteria of practicality, user-friendliness and possible implementation costs in accordance with the second subparagraph of paragraph 1.
0.2   In scope
This CEN Technical Report describes the methodology used for testing at a semantic level and at the syntax level, as well as describing the semantic testing, the syntax testing and testing of the validation artefacts that represent EN 16931-1 and the test results. The testing of the validation artefacts will ensure they can be used to automatically check conformance with EN 16931-1.
0.3   Out of scope
During meetings with the European Commission they agreed to supplement the testing activities as the need arises. This included the provision of a hosted GITB (Global eBusiness Interoperability Test Beds) environment for syntax testing and to run separate studies such as assessment of implementation costs. The results of these studies will be published separately by CEF.
It was agreed at earlier meetings that piloting was out of scope i.e. perform live transactions, because resources were unavailable to undertake this in the time allowed. Instead we could simulate scenarios by leveraging on the experience of our experts.
Working Group 3 (hereafter WG3) in CEN/TC 434 has produced the syntax bindings and validation artefacts, and the task of quality assurance of these deliverables has been the responsibility of WG3.
VAT issues are complex and require juridical or legal expertise. VAT is also sometimes very sectoral or even country specific. Certain sections, in the VAT Directive, apply to all trades, others deal with special cases. The model should facilitate, but cannot be seen as an enforcement model. Therefore, VAT compliance would have to be checked on a case by case basis, and is deemed out of scope. The Commission had taken this up and given the draft to their VAT experts. The result was that no issues were discovered.
Article 226(B) of the VAT Directive [2] describes the simplified invoice. There are significantly fewer requirements for this invoice. It can only be used when the value is below a specific total amount. The requirement is to provide a model for low value purchases such as train tickets, receipts etc. The key difference is that it doesn’t require the Buyer to be identified. Due to limited resources the simplified invoice requirements were not checked and so are being considered as an extension to be developed at a future stage.
The changing between form and format was discussed. It was generally agreed, based on the VAT Directive, that an eInvoice cannot change form i.e. transformed to paper, however it can change format i.e. syntax. This is common in EDI systems and for legal reasons the original needs to be clarified. This means if it is in paper form it shall be archived in paper form and if it is electronic it shall stay in electronic form. An electronic invoice may change format, provided this is documented in an audit trail. However, in Norway and France the legislation states that the format received from the Supplier is the original and no other. Also, general practice in Germany requires that the invoice received from the Supplier be archived and considered as the original. There may be other exceptions in some Member States. This was also considered to be out of scope for this document and would be dealt with by the Member State involved.
It was agreed at an initial Plenary session that we should test all four syntaxes as the decision to select syntaxes had not yet been made. However ultimately the group concluded, based on our research, that the ISO 20022 Financial Invoice was not in sufficient use to justify being included.

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ISO 14533-3:2017 specifies the elements, among those defined in PDF Advanced Electronic Signatures (PAdES), that enable verification of a digital signature over a long period of time. It does not give new technical specifications about the digital signature itself, nor new restrictions of usage of the technical specifications about the digital signatures which already exist.

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This Technical Report gives guidelines on interoperability of electronic invoices at the transmission level, taking into account the need of ensuring the authenticity of the origin and the integrity of the electronic invoices.

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This Technical Report gives guidelines on the optional use of sector or country extensions in conjunction with the European Norm on the semantic data model for the core elements of an electronic invoice, including a methodology to be applied in the real environment.

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This CEN Technical Specification (TS) contains the methodology for syntax bindings of the core elements of an electronic invoice. Any rules to be followed when using one of the syntaxes specified in parts CEN/TS 16931-3-2 up to and including CEN/TS 16931-3-5 are stated informally in this TS. Together with this TS a set of validation artefacts is published, including formalisation of the rules.

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***Access to this CEN and SIST technical publication has been sponsored by the European Commission.***
This Technical Specification provides in Clause 7 the list of syntaxes that complies with and allows to express syntactically the core invoice model as specified in FprEN 16931-1:2016, according to the selection criteria provided by the Standardization Request [1].
The selection of the syntaxes also derived from the Standardization Request [1]. It states that, to limit costs on public authorities, the list should ideally not exceed five syntaxes. Four syntaxes were taken into account and assessed according to criteria provided by the Standardization Request [1].

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This Technical Specification (TS) specifies the methodology of the mapping between the semantic model of an electronic invoice, included in EN 16931-1 and a syntax. For each element in the semantic model (including sub-elements or supplementary components such as Identification scheme identifiers) it should be defined which element in the syntax is to be used to contain its information contents. Any mismatches between semantics, format, cardinality or structure are indicated.

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This Technical Report describes how trading partners may extend the core invoice model and the related business rules and code lists, in order to support business cases that are specific to their trading environment, while at the same time maintaining semantic interoperability with the core invoice model.
This Technical Report does not define a methodology for creation of core invoice usage specification, nor does it describe the detailed process of syntax binding.

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This Technical Report recommends a set of Guidelines to ensure interoperability at the transmission level to be used in conjunction with the European Norm (EN) for the semantic data model of the core elements of an electronic invoice and its other associated deliverables. The Guidelines are by nature non-prescriptive and non-binding.
These Guidelines take into account the following aspects:
1)   recommending best practices for use at the transmission level;
2)   supporting interoperability between all the parties and systems that need to interact and within the various operating models in common use;
3)   ensuring a level playing field for the various operating models and bi-lateral implementations and for the use of existing and future infrastructures, which support e-Invoicing;
4)   promoting a common terminology and non-proprietary standards for transmission and related areas;
5)   ensuring the authenticity of origin and integrity of electronic invoice content;
6)   providing guidance on data protection, on the enablement of format conversion, and on e-invoice legibility, including the use of a readable visual presentations, as required;
7)   providing guidance for identification, addressing and routing;
8)   identifying requirements for robust legal frameworks and governance arrangements;
9)   recognizing the roles of trading parties, solution and service providers and related infrastructure providers.
The Objectives of the Guidelines are:
10)   to support the implementation of the EU Directive 2014/55/EU on e-Invoicing and the core invoice model;
11)   to propose best practices and recommendations for standards to enable electronic exchange of e-Invoices and related data between participants by providing a basis for interoperability at the transmission level, based on common requirements and scenarios;
12)   to facilitate Straight Through Processing (STP) by the key actors in the supply chain (Buyers, Sellers, Tax Authorities, Agents, Banks, Service and Solution Providers, etc.);
13)   to provide a set of non-prescriptive and non-binding Guidelines and recommendations that are applicable to all common operating models for e-invoice exchange and transmission whilst also providing recommendations specific to each of the common operating models.
To accomplish these objectives, the Guidelines are based on the following Requirements and Guiding Principles:
14)   the need to cover the transmission of e-invoices and related documents from the system of the sending trading party to the system of the receiving trading party, including transmission issues for any intermediary platforms;
15)   the need to allow any seller in any European (EU, EEA and Switzerland) country to deliver invoices to any buyer in any location in another European country (EU, EEA and Switzerland);
16)   the need to support all common invoicing processes and modes of operation;
17)   the need to be compatible with the current legislative and regulatory environment for the exchange of e-Invoices and related data;
18)   the need to support the European Norm and other commonly accepted content standards;
19)   the need to ensure that other document exchanges beyond e-Invoicing can be supported;
20)   the need to establish clear boundaries between the collaborative and competitive domains;
21)   the need to enable competition between business models, solutions and service providers and foster innovation;
22)   the need to ensure that European supply chains remain an integrated and competitive part of the global economy;
23)   the need to promote network effects leading to the development of critical mass as e-Invoicing becomes the dominant mode of invoicing (network effects result in a service becoming more valuable as more trading parties use it, thus creating a virtuous circle and further momentum for adoption).
The following items are considered to be in the competitive domain and therefore out of scope of the Recommendations:
(....)

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