scope:

The purpose of the ITU-T Rec. T.410.Series I ISO/IEC 8613 is to facilitate the interchange of documents.

In the context of these Recommendations | International Standards, documents are to be items such as memoranda, letters, invoices, forms and reports, which may include pictures and tabular material. The content elements used within the documents may include graphic characters, raster graphics elements and geometric graphics elements, all potentially within one document.

NOTE - These Recommendations 1 International Standards are designed to allow for extensions, including hypermedia features, spreadsheets and additional types of content such as audio and video.

In addition to the content types defined in these Recommendations 1 International Standards, ODA also provides for arbitrary content types to be included in documents.

These Recommendations | International Standards apply to the interchange of documents by means of data communication or the exchange of storage media.

These Recommendations I International Standards provide for the interchange of documents for either or both of the following purposes:

- to allow presentationa s intended by the originator;

- to allow processing such as editing and reformatting.

The composition of a document in interchange can take several form:

- formatted form, allowing presentation of the document;

- processablefo rm, allowing processingo f the document;

- formatted processablefo rm, allowing both presentationa ndp rocessing.

These Recommendations I nternational Standards also provide for the interchange of ODA information structures used for the processing of interchangedd ocuments.

This Recommendation 1 International Standard:

- extends the concepts of ODA beyond sheets of paper;

- describes how to specifjl temporal relationships for the presentation of information in ODA documents such as sequential,p arallel or cyclic presentation of particular pieces of information;

- specifies a reference model for the layout process and presentation process in respect to temporal relationships;

- introduces the concepts of hypermedia documents where non-linear links betweenp resentablec ontent are provided;

- describes how to specify non-linear structures in an ODA document such as pieces of information as commonly found in so-called hypermedia documents;

- introduces the concept of document sets;

- defines a document set profile for document sets;

- defines a reference model for the layout process and presentation process of hypermedia doucuments and document sets.