Web & Social Media Analytics Previous Year Question Paper.pdf
Web Services
1. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
“Everything you
always wanted to know
about Web services∗
∗ but were afraid to ask”
Antonio Villegas Ni˜o
n
avillegas@essi.upc.edu
@avillegasn
Services and Information Systems Engineering Department
Universitat Polit`cnica de Catalunya
e
October 20, 2010
C
CC BY: $
Antonio Villegas ESSI Seminar October 20, 2010 1 / 31
2. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Outline
1 Introduction
2 SOAP, WSDL and UDDI
3 From Desktop to Web
4 Conclusions
Antonio Villegas ESSI Seminar October 20, 2010 2 / 31
3. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Service-Oriented Architecture
SOA
Antonio Villegas ESSI Seminar October 20, 2010 3 / 31
4. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Service-Oriented Architecture
SOA
Antonio Villegas ESSI Seminar October 20, 2010 3 / 31
5. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Service-Oriented Architecture
SOA
Antonio Villegas ESSI Seminar October 20, 2010 3 / 31
6. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Service-Oriented Architecture
SOA = Web services
Antonio Villegas ESSI Seminar October 20, 2010 4 / 31
7. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Web Services
This presentation focuses on Web services.
What are Web services?
In essence, a technology for application integration and
interoperability based on open standards.
Application functionality packaged as a single unit and
exposed to the network.
The W3C defines a Web service as a software system
designed to support interoperable machine to machine
interaction over a network.
Antonio Villegas ESSI Seminar October 20, 2010 5 / 31
8. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Web Services
This presentation focuses on Web services.
What are Web services?
In essence, a technology for application integration and
interoperability based on open standards.
Application functionality packaged as a single unit and
exposed to the network.
The W3C defines a Web service as a software system
designed to support interoperable machine to machine
interaction over a network.
Antonio Villegas ESSI Seminar October 20, 2010 5 / 31
9. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Web Services
This presentation focuses on Web services.
What are Web services?
In essence, a technology for application integration and
interoperability based on open standards.
Application functionality packaged as a single unit and
exposed to the network.
The W3C defines a Web service as a software system
designed to support interoperable machine to machine
interaction over a network.
Antonio Villegas ESSI Seminar October 20, 2010 5 / 31
10. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Web Services
This presentation focuses on Web services.
What are Web services?
In essence, a technology for application integration and
interoperability based on open standards.
Application functionality packaged as a single unit and
exposed to the network.
The W3C defines a Web service as a software system
designed to support interoperable machine to machine
interaction over a network.
Antonio Villegas ESSI Seminar October 20, 2010 5 / 31
11. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Web Services
This presentation focuses on Web services.
What are Web services?
In essence, a technology for application integration and
interoperability based on open standards.
Application functionality packaged as a single unit and
exposed to the network.
The W3C defines a Web service as a software system
designed to support interoperable machine to machine
interaction over a network.
Antonio Villegas ESSI Seminar October 20, 2010 5 / 31
12. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Web Services
Some Examples
Antonio Villegas ESSI Seminar October 20, 2010 6 / 31
13. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Web Services
Some Examples
Antonio Villegas ESSI Seminar October 20, 2010 6 / 31
14. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Web Services
Some Examples
Antonio Villegas ESSI Seminar October 20, 2010 6 / 31
15. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Internals
The Web services framework is divided into three
areas:
Invocation: the simple object access protocol
(SOAP) which enables communication among
Web services.
Description: the Web Services Description
Language (WSDL) which provides a formal,
computer-readable description of Web
services.
Discovery: the Universal Description,
Discovery, and Integration (UDDI) directory
which is a registry of Web services
descriptions.
Antonio Villegas ESSI Seminar October 20, 2010 7 / 31
16. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Internals
The Web services framework is divided into three
areas:
Invocation: the simple object access protocol
(SOAP) which enables communication among
Web services.
Description: the Web Services Description
Language (WSDL) which provides a formal,
computer-readable description of Web
services.
Discovery: the Universal Description,
Discovery, and Integration (UDDI) directory
which is a registry of Web services
descriptions.
Antonio Villegas ESSI Seminar October 20, 2010 7 / 31
17. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Internals
The Web services framework is divided into three
areas:
Invocation: the simple object access protocol
(SOAP) which enables communication among
Web services.
Description: the Web Services Description
Language (WSDL) which provides a formal,
computer-readable description of Web
services.
Discovery: the Universal Description,
Discovery, and Integration (UDDI) directory
which is a registry of Web services
descriptions.
Antonio Villegas ESSI Seminar October 20, 2010 7 / 31
18. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web Services
Internals
The Web services framework is divided into three
areas:
Invocation: the simple object access protocol
(SOAP) which enables communication among
Web services.
Description: the Web Services Description
Language (WSDL) which provides a formal,
computer-readable description of Web
services.
Discovery: the Universal Description,
Discovery, and Integration (UDDI) directory
which is a registry of Web services
descriptions.
Antonio Villegas ESSI Seminar October 20, 2010 7 / 31
19. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
How does it work?
UDDI+WSDL+SOAP
Antonio Villegas ESSI Seminar October 20, 2010 8 / 31
20. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Invocation
Simple Object Access Protocol
Communication Mecanisms:
Platform-independent
International
Secure
As lightweight as possible
Simple Object Access Protocol
SOAP is an XML-based protocol for messaging and remote procedure calls.
Rather than define a new transport protocol, SOAP works on existing
transports, such as HTTP, SMTP, etc.
Antonio Villegas ESSI Seminar October 20, 2010 9 / 31
21. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Invocation
Simple Object Access Protocol
Communication Mecanisms:
Platform-independent
International
Secure
As lightweight as possible
Simple Object Access Protocol
SOAP is an XML-based protocol for messaging and remote procedure calls.
Rather than define a new transport protocol, SOAP works on existing
transports, such as HTTP, SMTP, etc.
Antonio Villegas ESSI Seminar October 20, 2010 9 / 31
22. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Invocation
SOAP Message Interchange
Antonio Villegas ESSI Seminar October 20, 2010 10 / 31
23. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Invocation
SOAP Request Message
POST / travelservice
SOAPAction: " http: // www . acme - travel . com / flightinfo "
Content - Type: text / xml ; charset = " utf -8 "
Content - Length: nnnn
< SOAP:Envelope xmlns:SOAP = " http: // schemas . xmlsoap . org / soap / envelope / " >
< SOAP:Header >
</ SOAP:Header >
< SOAP:Body >
< m :G et FlightInfo
xmlns:m = " http: // www . acme - travel . com / flightinfo "
S O A P :e nc o di ng S ty l e = " http: // schemas . xmlsoap . org / soap / encoding / "
xmlns:xsd = " http: // www . w3 . org /2001/ XMLSchema "
xmlns:xsi = " http: // www . w3 . org /2001/ XMLSchema - instance " >
< a i r l i n e N a m e xsi:type = " xsd:string " > OA </ a i r l i n e N a m e >
< f l i g h t N u m b e r xsi:type = " xsd:int " > 815 </ f l i g h t N u m b e r >
</ m :G e tFlightInfo >
</ SOAP:Body >
</ SOAP:Envelope >
Antonio Villegas ESSI Seminar October 20, 2010 11 / 31
24. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Invocation
SOAP Response Message
HTTP /1.1 200 OK
Content - Type: text / xml ; charset = " utf -8 "
Content - Length: nnnn
< SOAP:Envelope xmlns:SOAP = " http: // schemas . xmlsoap . org / soap / envelope / " >
< SOAP:Body >
< m:GetFlightInfoResponse
xmlns:m = " http: // www . acme - travel . com / flightinfo "
S O A P : e nc o di ng S ty le = " http: // schemas . xmlsoap . org / soap / encoding / "
xmlns:xsd = " http: // www . w3 . org /2001/ XMLSchema "
xmlns:xsi = " http: // www . w3 . org /2001/ XMLSchema - instance " >
< flightInfo >
< g a t e xsi:type = " xsd:int " > 10 </ g a t e >
< s t a t u s xsi:type = " xsd:string " > ON TIME </ s t a t u s >
</ flightInfo >
</ m : G e t F l i g h t I n f o R e s p o n s e >
</ SOAP:Body >
</ SOAP:Envelope >
Antonio Villegas ESSI Seminar October 20, 2010 12 / 31
25. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Description
Web Services Description Language
Web Services Description Language
WSDL is an XML format developed by IBM and Microsoft to
describe Web services as collections of communication end
points that can exchange certain messages.
A WSDL document describes a Web service’s interface and
provides users with a point of contact about what messages
must be exchanged to successfully interact with a service.
Antonio Villegas ESSI Seminar October 20, 2010 13 / 31
26. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Description
Web Services Description Language
Web Services Description Language
WSDL is an XML format developed by IBM and Microsoft to
describe Web services as collections of communication end
points that can exchange certain messages.
A WSDL document describes a Web service’s interface and
provides users with a point of contact about what messages
must be exchanged to successfully interact with a service.
Antonio Villegas ESSI Seminar October 20, 2010 13 / 31
27. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Description
Web Services Description Language
XML Structure
Antonio Villegas ESSI Seminar October 20, 2010 14 / 31
28. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Description
WSDL: Abstract Section
< wsdl:types >
<! − F l i g h t I n f o T y p e
− definition ( gate:int , status:string ) −−>
</ wsdl:types >
< wsdl:message name = " G e tF li g ht I nf oI n pu t " >
< wsdl:part name = " airlineName " type = " xsd:string " / >
< wsdl:part name = " flightNumber " type = " xsd:int " / >
</ wsdl:message >
< wsdl:message name = " G et F l i g h t I n fo O u t p u t " >
< wsdl:part name = " flightInfo " type = " x sd :F l ig h tI nf o Ty p e " / >
</ wsdl:message >
< wsdl:portType name = " A i r p o r t S e r v i c e P o r t T y p e " >
< wsdl:operation name = " GetFlightInfo " >
< wsdl:input message = " t n s : G e t F l i g h t I n f o I n p u t " / >
< wsdl:output message = " t n s : G e t F l i g h t I n f o O u t p u t " / >
</ wsdl:operation >
</ wsdl:portType >
Antonio Villegas ESSI Seminar October 20, 2010 15 / 31
29. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Description
WSDL: Concrete Section
< b i n d i n g name = " A i r p o r t S e r v i c e S o a p B i n d i n g "
type = " t n s : A i r p o r t S e r v i c e P o r t T y p e " >
< soap:binding transport = " http: // schemas . xmlsoap . org / soap / http " / >
< operation name = " GetFlightInfo " >
< soap:operation style = " rpc " soapAction = " http: // acme - travel /
flightinfo " / >
< input >
< soap:body use = " encoded "
namespace = " http: // acme - travel . com / flightinfo "
encodingStyle = " http: // schemas . xmlsoap . org / soap / encoding / " / >
</ input >
< output >
< soap:body use = " encoded "
namespace = " http: // acme - travel . com / flightinfo "
encodingStyle = " http: // schemas . xmlsoap . org / soap / encoding / " / >
</ output >
</ operation >
</ b i n d i n g >
< s e r v i c e name = " travelservice " >
< p o r t name = " tra vels erv ice Por t "
b i n d i n g =" tns:AirportServiceSoapBinding ">
< soap:address location = " http: // acmetravel . com / travelservice " / >
</ p o r t >
</ s e r v i c e >
Antonio Villegas ESSI Seminar October 20, 2010 16 / 31
30. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Discovery
Universal Description, Discovery, and Integration
Universal Description, Discovery, and Integration
The UDDI specification offers users a unified and systematic way
to find service providers through a centralized registry of services
that is roughly equivalent to an automated online phone directory
of Web services.
Registry access is accomplished using a standard SOAP API for
both querying and updating.
Antonio Villegas ESSI Seminar October 20, 2010 17 / 31
31. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Discovery
Universal Description, Discovery, and Integration
Universal Description, Discovery, and Integration
The UDDI specification offers users a unified and systematic way
to find service providers through a centralized registry of services
that is roughly equivalent to an automated online phone directory
of Web services.
Registry access is accomplished using a standard SOAP API for
both querying and updating.
Antonio Villegas ESSI Seminar October 20, 2010 17 / 31
32. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Discovery
UDDI
UDDI API
Antonio Villegas ESSI Seminar October 20, 2010 18 / 31
33. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Discovery
UDDI
Flow of UDDI messages between Client and Registry
Antonio Villegas ESSI Seminar October 20, 2010 19 / 31
34. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
From Desktop to Web
Example of Web service migration from Java Desktop App
Antonio Villegas ESSI Seminar October 20, 2010 20 / 31
35. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
From Desktop to Web
Example of Web service migration from Java Desktop App
Antonio Villegas ESSI Seminar October 20, 2010 20 / 31
36. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
From Desktop to Web
Example of Web service migration from Java Desktop App
Antonio Villegas ESSI Seminar October 20, 2010 20 / 31
37. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
From Desktop to Web
Example of Web service migration from Java Desktop App
Antonio Villegas ESSI Seminar October 20, 2010 20 / 31
38. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
From Desktop to Web
Bottom-up approach
Antonio Villegas ESSI Seminar October 20, 2010 21 / 31
39. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
First problem
SOAP
WSDL UDDI
Do we have to master these technologies?
Antonio Villegas ESSI Seminar October 20, 2010 22 / 31
40. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
First problem
SOAP
WSDL UDDI
Do we have to master these technologies?
Not at all!
Eclipse WTP + AXIS2 + Tomcat = 1-click Web service generator
Antonio Villegas ESSI Seminar October 20, 2010 22 / 31
41. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
Setting up the environment
Eclipse WTP + Axis2 + Tomcat
Eclipse WTP
Provides functionality to develop web functionality with
Java
Install via Eclipse Update Manager
Axis 2
Axis2 is a Web Services / SOAP / WSDL engine
Currently Axis2 1.5 is not supported. Make sure you
download Axis 1.4.1
Extract the Axis2 zip and point Eclipse WTP on it
(through Eclipse Preferences)
Tomcat
Open source software implementation of the Java Servlet
and JavaServer Pages technologies.
Download, extract zip and point Eclipse WTP on it
(through Eclipse Preferences)
Antonio Villegas ESSI Seminar October 20, 2010 23 / 31
42. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
Setting up the environment
Eclipse WTP + Axis2 + Tomcat
Eclipse WTP
Provides functionality to develop web functionality with
Java
Install via Eclipse Update Manager
Axis 2
Axis2 is a Web Services / SOAP / WSDL engine
Currently Axis2 1.5 is not supported. Make sure you
download Axis 1.4.1
Extract the Axis2 zip and point Eclipse WTP on it
(through Eclipse Preferences)
Tomcat
Open source software implementation of the Java Servlet
and JavaServer Pages technologies.
Download, extract zip and point Eclipse WTP on it
(through Eclipse Preferences)
Antonio Villegas ESSI Seminar October 20, 2010 23 / 31
43. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
Setting up the environment
Eclipse WTP + Axis2 + Tomcat
Eclipse WTP
Provides functionality to develop web functionality with
Java
Install via Eclipse Update Manager
Axis 2
Axis2 is a Web Services / SOAP / WSDL engine
Currently Axis2 1.5 is not supported. Make sure you
download Axis 1.4.1
Extract the Axis2 zip and point Eclipse WTP on it
(through Eclipse Preferences)
Tomcat
Open source software implementation of the Java Servlet
and JavaServer Pages technologies.
Download, extract zip and point Eclipse WTP on it
(through Eclipse Preferences)
Antonio Villegas ESSI Seminar October 20, 2010 23 / 31
44. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
Setting up the environment
Eclipse WTP + Axis2 + Tomcat
Eclipse WTP
Provides functionality to develop web functionality with
Java
Install via Eclipse Update Manager
Axis 2
Axis2 is a Web Services / SOAP / WSDL engine
Currently Axis2 1.5 is not supported. Make sure you
download Axis 1.4.1
Extract the Axis2 zip and point Eclipse WTP on it
(through Eclipse Preferences)
Tomcat
Open source software implementation of the Java Servlet
and JavaServer Pages technologies.
Download, extract zip and point Eclipse WTP on it
(through Eclipse Preferences)
Antonio Villegas ESSI Seminar October 20, 2010 23 / 31
45. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
Create a Web service from Java
Java Project
Create a new Dynamic Web project
Create a Java class with the operations of the Web service
p u b l i c c l a s s Filtering {
// k e e p t h e model up b e t w e e n m e s s a g e s
p r i v a t e s t a t i c MModel model ;
p u b l i c s t a t i c v o i d start () {
// l o a d schema
}
p u b l i c s t a t i c String filter ( String [] focusSet ) {
// compute a f i l t e r e d c o n c e p t u a l schema
// same c o d e a s i n USE E n v i r o n m e n t
// r e t u r n a XMI r e p r e s e n t a t i o n
}
}
Antonio Villegas ESSI Seminar October 20, 2010 24 / 31
46. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
Create a Web service from Java
Antonio Villegas ESSI Seminar October 20, 2010 25 / 31
47. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
Antonio Villegas ESSI Seminar October 20, 2010 26 / 31
48. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
Antonio Villegas ESSI Seminar October 20, 2010 26 / 31
49. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Filtering Web service
The Web service is running!
Let’s see all the architecture...
Antonio Villegas ESSI Seminar October 20, 2010 27 / 31
50. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
51. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
52. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
53. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
54. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
55. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
56. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
57. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
58. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
59. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
60. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
61. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Antonio Villegas ESSI Seminar October 20, 2010 28 / 31
62. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Web service architecture
Demo Time
Antonio Villegas ESSI Seminar October 20, 2010 29 / 31
63. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Conclusions
Integration
Web services are a good solution to complete functionalities of
your software.
Technologies
Fortunately, they are well-supported and it makes their adoption
and understandability less complex than it could seem at first.
Development cost
It is easier to port a desktop app into a Web service than to
develop a new web app from scratch.
Antonio Villegas ESSI Seminar October 20, 2010 30 / 31
64. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Conclusions
Integration
Web services are a good solution to complete functionalities of
your software.
Technologies
Fortunately, they are well-supported and it makes their adoption
and understandability less complex than it could seem at first.
Development cost
It is easier to port a desktop app into a Web service than to
develop a new web app from scratch.
Antonio Villegas ESSI Seminar October 20, 2010 30 / 31
65. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Conclusions
Integration
Web services are a good solution to complete functionalities of
your software.
Technologies
Fortunately, they are well-supported and it makes their adoption
and understandability less complex than it could seem at first.
Development cost
It is easier to port a desktop app into a Web service than to
develop a new web app from scratch.
Antonio Villegas ESSI Seminar October 20, 2010 30 / 31
66. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Conclusions
Integration
Web services are a good solution to complete functionalities of
your software.
Technologies
Fortunately, they are well-supported and it makes their adoption
and understandability less complex than it could seem at first.
Development cost
It is easier to port a desktop app into a Web service than to
develop a new web app from scratch.
Antonio Villegas ESSI Seminar October 20, 2010 30 / 31
67. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Credits
References
F. Curbera et al. Unraveling the Web Services Web: An Introduction to SOAP, WSDL, and UDDI.
IEEE Internet Computing (2002), 86–93.
E. Cerami. Web Services Essentials. Distributed Applications with XML-RPC, SOAP, UDDI & WSDL.
O’Reilly Media (2002).
M. Weiss. Web Services. Carleton University. http://www.slideshare.net/mrw/web-services-84334
T. Bellwood. Understanding UDDI. Tracking the evolving specification. IBM developerWorks (2002).
http://www.ibm.com/developerworks/webservices/library/ws-featuddi/
T. Harris yUML. Simple UML diagrams online. yuml.me
Tutorial
L. Vogel. Webservices with Axis2 and the Eclipse Web Tool Platform (WTP).
http://www.vogella.de/articles/Webservice/article.html
Comics
Geek & Poke. http://geekandpoke.typepad.com
Antonio Villegas ESSI Seminar October 20, 2010 31 / 31
68. Introduction SOAP, WSDL and UDDI From Desktop to Web Conclusions Credits
Credits
References
F. Curbera et al. Unraveling the Web Services Web: An Introduction to SOAP, WSDL, and UDDI.
IEEE Internet Computing (2002), 86–93.
E. Cerami. Web Services Essentials. Distributed Applications with XML-RPC, SOAP, UDDI & WSDL.
O’Reilly Media (2002).
M. Weiss. Web Services. Carleton University. http://www.slideshare.net/mrw/web-services-84334
T. Bellwood. Understanding UDDI. Tracking the evolving specification. IBM developerWorks (2002).
http://www.ibm.com/developerworks/webservices/library/ws-featuddi/
T. Harris yUML. Simple UML diagrams online. yuml.me
Tutorial
L. Vogel. Webservices with Axis2 and the Eclipse Web Tool Platform (WTP).
http://www.vogella.de/articles/Webservice/article.html
Comics
Geek & Poke. http://geekandpoke.typepad.com
Antonio Villegas ESSI Seminar October 20, 2010 31 / 31