Technical standards of interoperability of electronic document and electronic File schema defined national Interoperability XML schemes (XSD) as a tool for interoperability in the exchange of electronic documents and files.
The structure to apply for the exchange of electronic documents is generally a XML file containing the three components of the electronic identified, namely:
i. Fichero de contenido: que alberga el fichero que contiene los datos o contenido del documento. Para su inclusión en la estructura XML, estos ficheros se codifican normalmente en base64 .
ii. Bloque de metadatos: en el que siguiendo el esquema XML correspondiente, se integran los metadatos definidos como mínimos obligatorios asociados al fichero de contenido anterior, salvo ‘Valor CSV’, y ‘Regulación generación CSV’ que se integrarán en el elemento de firma.
iii. Signing/s: whether electronic signatures based on certificates and/or CSV file associated with the contents of the document, as well as the metadata of the signature.
Complete design of the ENI schema consists of 8 XSDs implemented to measure and an external XSD linked (xmldsig-core-schema.xsd) of the specification XMLDSig that is used in the signatures of type XAdES.
This model of the ENI XSDs remains a modular design that fosters reuse and interoperability with other existing schemes.
In the implementation, can distinguish two types of modules:
Structural module: which defines a structure to manage and contain other modules.
Módulo de contenido: que alberga el contenido final del componente descrito.
In this way, the modules can in some cases contain other (structural modules) or be included within other (modules of content and structural).
A complete list of the XSDs designed to meet the needs of the ENI is included in the following table:
Las relaciones entre los diferentes módulos que conforman el esquema se representan en la figura siguiente:
