9 Notes

9 Notes

Here's a collection of information that might be important to specific clients but is hard to fit into a general tutorial.

• Because there are no meta data requirements to serve data via the OPeNDAP protocol, client applications may not find all the information they require to make use of the data. The DAP currently supports ancillary DAS files at the remote server site. In development is an Ancillary Information Service (AIS) which will permit these external meta data resources to be located with the remote data itself, at other remote server sites, or on the client. Any meta data augmented by the AIS will be clearly indicated in the attributes.
• It is the client application's responsibility to provide the initial base URLs to the remote server site. In development are data discovery services, including an ImportWizard which can query existing directory services such as the GCMD, to provide the base URLs to providers with installed OPeNDAP data servers.
• The DODS Project has developed two tools to help with serving datasets that contain many files. The first is to set up a `file server' a kind of catalog of URLs that is itself a DODS data set. The second is called the Aggregation Server (AS). The AS can automatically aggregate discrete datasets, accessed as either as files (in some cases) or URLs to produce a single data set. See the OPeNDAP Home page and/or contact tech support (support@opendap.org) for help with this.
• You can get help from the OPeNDAP Home page the OPeNDAP Mailing Lists and user support(support@opendap.org).

9 Notes