1. Bringing the Web Processing Service to a new stage –
new 52°North WPS Features
Bastian Schäffer, 52°North
Theodor Förster, 52°North

2. Agenda Motivation WPS basics behind the scences look new features
current research

3. 52°North WPS
52°North WPS introduced at FOSS4G 2006

4. 52°North WPS 52°North WPS 0.4.0 introduced at FOSS4G 2006
new standard OGC 1.0.0
new features
 new 52°North release

5. 52°North WPS
What is a WPS?

6. 52°North WPS What is a WPS? Geospatial data available (e.g. WFS, WCS)
Network capacity and computational power available

7. WPS
What is a WPS?
Web Based Processing
WPS
WPS
Data
Information

8. WPS
WPS
WPS
Process 1
Process 2
Process n

9. WPS
WPS
WPS
GetCapabilities
Process 1
Process 2
Process n

10. WPS WPS WPS GetCapabilities Process 1 DescribeProcess Process 2
Process n

11. WPS WPS WPS GetCapabilities Process 1 DescribeProcess Process 2
Execute
Process n

12. WPS
Example
WPS
???
???
???

13. WPS
Discovery
 GetCapabilities

14. WPS
Example
WPS
Buffer
Process 2
Process n

15. WPS
Discovery
 DescribeProcess

16. WPS
Example
WPS
Buffer
Process 2 5
Process n

17. WPS
Execution
 XML Execute Request

18. WPS
Example
WPS
Buffer
Process 2 5
Process n

19. 52°North WPS Features Overview Features
Full java-based Open Source implementation
Pluggable framework for algorithms and XML data
handling
Build up on robust OS libraries (JTS, geotools, xmlBeans, servlet API, derby)
Supports full logging of service activity
Supports exception handling according to the spec
Storing of execution results
Full GML2 support for ComplexValues (i.e. FeatureCollections)
Support of raster processing (beta)

20. 52°North WPS Features Overview New features SOAP/WSDL support
Repository Concept
Plug&Play parsers
 Synchronous processing
Asynchronus processing
Easy Maven deployment
Current Research

21. Binding
WPS
Process 1
Process 2
Process n

22. Binding
WPS
HTTP-GET
Process 1
Process 2
Process n

23. Binding
WPS
HTTP-GET
Process 1
HTTP-POST
Process 2
Process n

24. Binding WPS HTTP-GET Process 1 HTTP-POST Process 2 SOAP Process n
OGC OWS-5 Testbed tries to develop general guidelines/recommendations
Process n

25. Repository Concept
Discovery

26. Repository Concept Discovery
Request=GetCapabilities&Service=WPS

27. Repository Concept
Discovery

28. Repository Concept WPS WPS-Core Process 1 Process 2 Process n
Manager
Process n

29. Repository Concept WPS GRASS WPS-Core Process 1 Process 2 Process n
Manager
GRASS
Process n

30. Repository Concept WPS BPEL WPS-Core Process 1 Process 2 Process n
Manager
BPEL
Process n

31. Repository Concept
What is a WPS?

32. 52°North WPS Anatomy
Execution

33. 52°North WPS Anatomy
Execution
Synchronous
Asynchronous

34. 52°North WPS Anatomy Execution Synchronous Asynchronous
Wrapped XML payload
Raw data payload

35. 52°North WPS Anatomy
Execution
Synchronous
Entity1
Entity2

36. 52°North WPS Anatomy
Execution
Asynchronous
Push-model
Entity1
Entity2

37. 52°North WPS Anatomy Execution Asynchronous Pull-model Entity1 Entity2
reference
50%
result

38. 52°North WPS Anatomy
Execution
Asynchronous

39. 52°North WPS Anatomy
Execution
Asynchronous

40. 52°North WPS Anatomy

41. 52°North WPS Anatomy
Execution
Wrapped XML

42. 52°North WPS Anatomy
Execution
Wrapped XML

43. 52°North WPS Anatomy
Execution
Wrapped XML
Response

44. 52°North WPS Anatomy
Execution
Raw Data

45. 52°North WPS Anatomy
Execution
Raw Data

46. 52°North WPS Anatomy
Execution
Raw Data
Response

47. 52°North WPS Anatomy
Deployment

48. 52°North WPS Anatomy
Deployment
Maven

49. 52°North WPS Anatomy Deployment Maven fast easy
modularizedcost effective

50. 52°North WPS Anatomy
Deployment
Maven
WPS-Server
WPS-IO
WPS-
Webapp

51. 52°North Research
Current 52°North Geoprocessing Research

52. 52°North Research Current 52°North Geoprocessing Research
Udig WPS Client

53. 52°North Research Current 52°North Geoprocessing Research
Udig WPS Client
Udig workflow modelling plugin

54. 52°North Research Current 52°North Geoprocessing Research
Udig WPS Client
Udig workflow modelling plugin
WPS-T

55. 52°North Research Current 52°North Geoprocessing Research WPS-T uDig
deployProcess
undeployProcess
uDig

56. 52°North Research Current 52°North Geoprocessing Research
Udig WPS Client
Udig workflow modelling plugin
WPS-T
WPS GRASS support

57. 52°North Research Current 52°North Geoprocessing Research WPS GRASS
<script>
Process 1
Process 1
Meta Data
Process 2
Process n

58. 52°North Research Current 52North Geoprocessing Research
Udig WPS Client
Udig workflow modelling plugin
WPS-T
WPS GRASS support
WPS and GRID technologies

59. 52°North Research Current 52North Geoprocessing Research
Udig WPS Client
Udig workflow modelling plugin
WPS-T
WPS GRASS support
WPS and GRID technologies
Wrapping ILWIS as a WPS 4 p.m. OakBay1

60. 52°North WPS
Thank You
Questions?