BS ISO IEC 19780-1 pdf download

BS ISO IEC 19780-1 pdf download.Information technology — Learning, education and training — Collaborative technology — Collaborative learning communication
1 Scope
1.1 Statement of scope This part of ISO/IEC 19780 specifies the Data Model for text-based expressions. It provides a standardized way of isolating and describing textual expressions composed and communicated by collaborative group members. 1.2 Excluded subjects and aspects For the purposes of simplicity, the following media and contexts have been excluded from this part of ISO/IEC 19780. — Communication involving media other than text. — Contexts and associated requirements in which one or more participants are intended to receive a given expression are identified individually, apart from the collaborative group (e.g. “whispering” or “private messaging” in chat contexts). — Permissions and privacy information associated with individual participants.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 19778-1 and the following apply. NOTE The terms defined here are closely interrelated. When a term is utilized elsewhere in this part of ISO/IEC 19780, as defined in this list or as defined in ISO/IEC 19778-1, that term is italicized.3.1 expression instantiation of the Data Model for text-based expressions including the expression body and possible expression attachments Note 1 to entry: See ISO/IEC 19778-2. 3.2 expression attachment additional data associated with a given expression 3.3 expression body principle message or communicative substance of the expression shared among participants in a collaborative environment, related through reference to the expression Data Model instance 3.4 text data in the form of characters, symbols, words, phrases, paragraphs, sentences, tables or other character arrangements, intended to convey a meaning and whose interpretation is essentially based on the reader’s knowledge of some natural language or artificial language Note 1 to entry: The interpretation of text in collaborative communication is also based on the communicative context. Note 2 to entry: The use of tables and complex character arrangements might not always be possible in text- based collaborative communication.
5 Text-based communication Data Model 5.1 Overview
The expression entity and Data Model is related through reference (using ID-Refs) to the other entities constituting the collaborative workplace as indicated in Figure 1. Each expression is related in this way both to the tool with which it is sent, read and received (the collaborative tool and its collaborative function), and also to the group member who generated it (as both participant and role holder).The general approach for formulating identifiers in this part of ISO/IEC 19780 is the same as that put forward in ISO/IEC 19778. In order to support more than a single identifier format, both International Standards utilize a “source” — “value” approach for identifier Data Elements, in which the value of sub- element “source” specifies a URI (Uniform Resource Identifier, e.g. the URL where the specification for the identifier format is found), and the sub-element “value” carries the identifier value itself, which is compliant to the earlier format description. It is the responsibility of the users of this part of ISO/IEC 19780 to assure that their identifiers are unique at least within a particular domain or application context. 5.2 Expression Data Model specification The table-based Expression Data Model representation used here corresponds to the specification provided in ISO/IEC 19778-1:—, 5.1.5.3 Supplemental information for the expression Data Model 5.3.1 Data element EX_ID The expression identifier serves as a label for an expression, allowing (among other things) for the interlinking of related expressions within a particular collaborative workplace. NOTE As every expression is an entity internal to a particular collaborative workplace, expression identifiers do not use a “source-value” approach (like the collaborative workplace identifiers do). However, expression identifiers should be unambiguous within the context of the collaborative workplace within which they are generated and communicated. Precisely how this is done is outside the scope of this part of ISO/IEC 19780. 5.3.2 Data element EX_Title Name given to the expression that provides associated data. The subelement “value” is the URI or identifier reference itself, corresponding to the format specified through “source.” NOTE This name is typically intended for human use. In many cases, the title of an expression may be inherited from a previous expression to which it is related.