Geoportal Surgery: Getting into the guts to support new protocols

 

·         From heterogeneous or non-traditional environment

·         Geoportal will change from ESRI management to community management of source code in the next few weeks

·         Marten wants to know what happens when you locate/download a granule

·         New release this past summer

·         Government mandate might change needs for metadata

o   Make api available and things will grow

o   Need to think beyond catalogue itself to adapt (to not become extinct)

o   Recommend book – The age of the Platform by Phil Simon

·         3 planks

o   AND

§  Some want human readable metadata

o   Swiss Army Knives (also called broker)

o   NCC1701

·         GEOportal

o   1st serach ArcGIS online… has been there all along

o   Able to create footprints of the items you create

o   Able to tap into these with geoportal

o   Some agencies have implemented ArcGIS portals (because of other requirements such as not being able to share some times)

o   NOAA did sometime different – NOAA’s geoplatform

§  Can turn this across and search from NOAA’s site (same results same data)

o   This is the power of AND step 1

·         There was a Geospatial one stop

o   When it retired and merged with Data.gov it was focused on federal so some state content is not searchable anymore (includes zip and offline data not just services)

o   Every search on site also includes a search of this other things as a second set of results

o   Geo.data.gov only include “approved results” but they are the same catalogue

·         Verbose metadata

o   Create something like a webpage, has link to formal data record

o   “weak link”…. Doesn’t exist – things go wrong

o   Using Indonesia NSDI DNN Portal project example

§  Can see content

§  Added “metadata” buttom.  It is a geoportal integration with ArcGIS portal

§  Creates metadata with geoportal metadata using an editor

§  Geoportal hates metadata – there is no index… it is all lifted from arcgis portal

o   Q Is this metadata harvested or uploaded manually?

§  One is upload your xml

§  Metadata actually goes to ArcGIS portal after you save – it is a placeholder

§  Using api, can read and write the metadata file

o   Q can you browser to the editor where the metadata is

§  No

o   Q if more complex query, use xpath

§  No – bound by ArcGIS portal search capabilities

§  If wanted to have more complex – you have to a parallel synchronized index

§  What he is demonstrating is synchronizing between ArcGIS portals

o   Want to publish once and harvest everywhere

§  Geoportal has been doing this for years

§  Fetch and harvest in different places

o   Q There is normally no editor for the harvested metadata.

§  Traditionally the editor was simple… edited elsewhere

o   Q Ted – missing difference between geoportal and ArcGIS server and ARcGIS online and arcgis portal

§  ArcGIS server is different

§  Geoportal

§  ArcGIS online

§  ArcGIS portal

§  (portal for ArcGIS)

o   Need to see esri as a platform – it is not just one thing – it is a lot of different thing

o   Start with bottom – content – can have your own, partners, others, public, esri… basement (map has footprints)

o   On content is technology layer – online, server, desktop, devices (sometimes not obvious that you are using technologies)

§  Create templates for data models, work flows – add new content and voila!

o   Q is there a plan to synergize the different api – to have a single REST

§  There is synchronizing going on

§  arcGIS server – servers, tools,

§  arcGIS online – serves metadata content – tool to author webmaps from arcGIS servers

o   Q if wanted to discover and generate the map – need 2 REST calls

§  Some things take more than 1 steps (certain workflows need more than one action)

o   Patterns – Geo-centric is a map view, geo-enriched looks at non-spatial data and adds spatial component, embedded is not realizing using – include services

o   Geoportal focuses on metadata and making metadata discoverable

o   arcGIS online = arcGIS portal

§  arcGIS online is an ESRI hosted service

o   with arcGIS online – you can upload your own data – ESRI hosts it but it is still your data

o   geoportal – create author and share metadata while arcGIS online creates maps and services

o   IssueMap is an api for arcGIS online

§  Example is uploading some basic data to create a map

§  “geojoin” to create a simple map by associating data with an existing service

§  It is a template app that is configurable

o   Swiss army knife

§  Christine – “I wish we could search DataOne through geoportal”

§  All things just have an interface

§  Q what protocol are you using to search data one

·         Can search through OneMercury tool – prob is it is a webpage but want the results from the search

§  If you want to do these things – need to have page with “this is our api…”… DataOne has this

§  Need to go into configuration file to this

§  There are search engines that exist – Rest, CSW

·         These are search engine classes that know to search

§  With REST or Http “get search” they will always be the same

§  In geo portal there is a place to set up your own profile

§  Essentially making catalogues equal

§  Harvestable = means you can get it regularly

§  Doesn’t take a lot of work to set up these connections because they are mainly RSS and Atom – thus known and simple XML schema

§  Get dataset and then search for granules

§  Some results are not linked… may be how he is opening links… but some will work

·         Adding a “sparql” search in addition to CSW and Opensearch

·         Going beyond metadata searching (NCC1701)

o   Examples were already showing… including RSS, YouTube, federal register

o   Not necessarily spatial data

·         http://github.com/Esri  - includes mobile and web based applications

·         Q back to Sparql – so others can search through sparql – but sparql can also do semantic mapping with other vocabularies – help define search on

o   In gptogc - Behind services is thing called “gmap” to return broader search

o   If different ontology service…. You can work with that – limitation is the interface needs to be understood by geoportal

·         Q search for specific attribute in FGDC

o   You can add conditions to your search

o   Interface to see which fields are in the catalogue

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