NDFD Technical Workshop (Nov 2, 2006) Use of XML Robert Bunge OCIO x140

NDFD Technical Workshop (Nov 2, 2006) NDFD and XML Use of Extensible Markup Language (XML) to disseminate NDFD data was first considered in 2003; Seemed to be an ideal way to query for a small slice of NDFD data over the ‘Net; Low cost of entry with wide adoption of XML across all sectors; Done in parallel with XML services for Watch/warnings/current Obs

NDFD Technical Workshop (Nov 2, 2006) NDFD and XML Initial choice of Simple Object Access Protocol (SOAP) based on trends in industry and potential automated integration into some development environments; Digital Weather Markup Language (DWML) schema developed at NWS by MDL;

NDFD Technical Workshop (Nov 2, 2006) NDFD-XML Experimental NDFD-XML SOAP service first made available in 2004; Demonstration pages also provided plain HTTP “GET” interface; Service extended to provide a 12/24 hour daily summarization that include icon links and “character of the day” information

NDFD Technical Workshop (Nov 2, 2006) NDFD-XML 2005: use of the service had grown enough to impact HQ web farm server performance; –Redesigns of internal systems; –Availability of NDFD-XML via degrib 2006: SOAP service running from million request per month (about 10/sec);

NDFD Technical Workshop (Nov 2, 2006) NDFD-XML Where to: –DWML from degrib Development of application using SOAP/HTTP service If application grows, partner now has the option of using degrib directly, giving them more control over, speed, number of queries, etc –NDFDwfs – providing NDFD data in GIS formats using Geography Markup Language;

NDFD Technical Workshop (Nov 2, 2006) NDFD-XML RSS – Real Simple Syndication –We’ve had many requests for this –Likely combine words with icons and links to related NWS radar displays, etc What else?

NDFD Technical Workshop (Nov 2, 2006) Bob Bunge x140