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The following discusses how the National ITS Architecture provides the transportation service described by this service package. Each numbered item describes the operation of that portion of the service package identified with the corresponding number on the transaction set diagram.
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An Archive Data Administrator can set operational parameters on the archive (archive management requests). These can include how much and how long to store operational data, how to aggregate the data (e.g. averaging or sampling and at what age - for example older data may be sampled more sparsely than more current data). The Administrator can issue user IDs and passwords to limit access to certain types or classes of data, and may determine what data will be stored in an encrypted state in order to control access. The Archive Data Administrator corresponds to the librarian of the archive in our analogy, where the librarian is responsible for the storage organization of the library data contents, and is responsible for determining and administering access to the data on this or Other Archives. The archive returns archive management data to the Archive Data Administrator.
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The ADMS can exchange archive coordination data with Other Archives. This exchange of information, when not in direct response to an Archive Data User System request for information, involves the exchange of indexes of data stored at each archive. In this way, a local index in each archive can be used to identify where data is stored that can be responsive to a user request.
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An interface is provided for Archive Data User Systems, to request (archived data product requests) and then receive archived data products.
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If necessary, to be responsive to an Archive Data User System, the archive may request and receive information from one or more Other Archives (archive coordination).
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