Apps4Geo:GeoFeedbackMap

Presentation 26 april 2013

Agenda

• The business case• Functional decomposition• Demo• Technical

The Business case

• There is a lot of open Geodata• Sharing is often in one direction: supplier to

user• Feedback on the data would offer added value

to suppliers• ‘Geodata Crowdsourcing’ – in this case between gouvernments

The Business case

• High quality is needed to stimulate use of the data– % Coverage– Correctness

• Crowdsourcing can improve quality guarantees, and thus stimulate use

Functional decomposition

• The user can search the geodatasets – Using a keyword– Possibility: is there data on this location

• A found geodataset can be added to the map• The user can give feedback on the data– By drawing– By typing a comment– By adding or altering attributes

Functional decomposition

• The administrator can manage the WMS layers offered

• The administrator receives reports from the users– Are they correct?– How to check?

• Why not just send an e-mail?– Hard to find the right adress– Harder to automate, order, sort

Demo

Technical

• Using WMS: open standard for sharing map services– Not all WMS comply or are always working– We used DOV data + ESRI background

• C# services for searching• ExtJs + Openlayers for the viewer