ISO 20652 pdf download – Space data and information transfer systems一Producer- -archive interface一 Methodology abstract standard

ISO 20652 pdf download - Space data and information transfer systems一Producer- -archive interface一 Methodology abstract standard

ISO 20652 pdf download – Space data and information transfer systems一Producer- -archive interface一 Methodology abstract standard.
F—I Define the formats, coding rules, and standards: The Producer and the Archive must then choose the format, the coding niles, and the standards to be applied, for each of the objects defined in F-3. drawing on the clcmcnts already provided during the preliminary phase. Sonic objects already exist, while others do not. lithe format of existing objects does not correspond to the specified format, the Producer and the Archive must reach an agreement (e.g.. migrationsl.
F-S Define volume Indicators: The Producer provides the Archive with information on the volume measurements (e.g., estimated total volume to be archived and also granular information on the volume of Content Data, mean and maximum size of a filc)
Fe Define the references: Producer and Archive define the references of the information elements, drawing on the results of the preliminary phase.
F-7 Choose the tools: Producer and Archive define the tools to be installed by the Producer or acquired by the Archive (to aid wih data production, production of descriptors. document production. etc.).
F-S rite a description of the Information Objects: A description of the elements previously negotiated by the Archive or the Producer must create an unambiguous record of the decisions and agreements. The record should be available to both the Producer and the Archke. This description will be part of the final Submission Agreement. This description refers to the Data Dictionary and the formal model (defined in subsections and
V.15 Define the Packaging Information: The Archive and the Producer must agree on the technical choices concerning Packaging Information and those already looked at in the preliminary phasc.
Producer and Archive must define how the objects or set of Data Objects of the fonnal model
will be packaged. For example, a set of attributes about a data file might be expressed using
XML and be combined with the data file bytes using a standard packaging approach such as
Iso 12175 (reference 151).
F-l6 Define a transfer session: The acwal transfer of Data Objects is divided into successive sessions. The notion of time-sequence also structures the data transfer into successive stages. This is a logical concept regardless of the physical resources used.
A Submission Session is a term defined in the OAIS Reference Model (reference Ill). It is an operation that enables data transfer from die Producer to the Archie to be carried out. A transfer session thus corresponds to the set of objects that are delivered by:
— transmission on a private or public (Internet) network, by ftp, E-mail. http. etc.; delivering a package of one or more physical media.
The Archive and the Producer must define:
— on the one hand, the functional structure of a session, A session may be a homogeneous package of objects (e.g., set of documentation, file packet of scientific data), or a retransfer of data following non-conformities, or an update.
– on the other hand, the structure with respect to time. In fact, very often all the instances of the Data Objects of a model may not be delivered simultaneously, but in several sessions (depending on the data production, the means of transfer, etc.). This process can be spread over several months, or several years or be ongoing.
The characteristics of the session (e.g.. identifier, date. ersion. start and end date in the case of an ongoing process) must take into account the previous items concerning the functional structure of the session, and its structure with respect to time. This information could be in a file provided simultaneously.
Lastly, the Archive and the Producer must establish a procedure for sending/receiving messages (e.g., forms, c-mails, acknowledgement of receipt), depending on needs. The Archive must have precise information on the contents of a session and. in turn. inlorm the Producer of the correct reception of the objects (e.&. in order to acknowledge session reception, the Archive may send an e-mail, provide a receipt or a letter of acknowledgement to the Producer indicating the date and contents of the reception).

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