web services

2. Today, companies rely on thousands of different software applications
each with their own role to play in running a business. These different software
applications run on a wide range of different platforms and operating systems,
and they are implemented in different programming languages. As a result, it is
very difficult for different applications to communicate with one another and
share their resources in a coordinated way.
2

3. 3

4.  Web services are application components
 Web services communicate using open protocols
 Web services are self-contained and self-describing
 Web services can be used by other applications
 XML is the basis for Web services
4

5. Interoperability has highest priority.
 When all major platforms could access the Web using Web browsers, different platforms could
interact. For these platforms to work together, Web applications were developed.
 Web applications are simple applications run on the web. These are built around the Web browser
standards and can mostly be used by any browser on any platform.
Web services take Web applications to the next level.
 Using Web services your application can publish its function or message to the rest of the world.
 Web services uses XML to code and decode your data and SOAP to transport it using open
protocols.
Web services have two types of uses.
 Reusable application components. Ideally, there will only be one type of each application component,
and anyone can use it in their application.
Connect existing software
 Web services help solve the interoperability problem by giving different applications a way to link their
data.
 Using Web services you can exchange data between different applications and different platforms.
5

6. • The basic Web services platform is XML + HTTP.
• The HTTP protocol is the most used Internet protocol.
• XML provides a language which can be used between different platforms and programming
languages and still express complex messages and functions.
Web services platform elements
 SOAP (Simple Object Access Protocol)
 WSDL (Web Services Description Language)
6

7. The basic Web services platform is XML
plus HTTP.
 SOAP stands for Simple Object Access Protocol
 SOAP is a communication protocol
 SOAP is for communication between applications
 SOAP is a format for sending messages
 SOAP is designed to communicate via Internet
 SOAP is platform independent
 SOAP is language independent
 SOAP is based on XML
 SOAP is simple and extensible
 SOAP allows you to get around firewalls
 SOAP will be developed as a W3C standard
7

8. WSDL is an XML-based language for describing Web services and
how to access them.
 WSDL stands for Web Services Description Language
 WSDL is written in XML
 WSDL is an XML document
 WSDL is used to describe Web services
 WSDL is also used to locate Web services
 WSDL is not yet a W3C standard
8

9.  As a web service is something that has no user interface, we can’t interact
with it without a special tool. That tool should allow composing XML
requests via its own user interface. Commonly such user interfaces are
text editors where you write your XML requests and controls for posting
requests to the server.
9

10.  Project structure. As in every well-established testing activity, I’ve started with
test specification. The main part of a test specification is test cases divided into
test areas. Visual Studio allows structuring your test project into test suites (the
same as test areas in my test specification) that contain test cases, which can
contain test steps, you can add, modify, delete and change order of every item
in the structure.
 Test cases. Visual Sdudio provides enough convenient tools to manage and run
your test cases, and view result in test requests.
 Load Testing. You can perform Load Testing.
10

11.  Automation. But what if your web service contains too many methods with too
many input and output parameters? It may take several days for each complete
test of your web service if your tool does not provide functionality to automate
your testing. You can automate validation of your web service’s response
against you input. You can automate the output of validation results into a file
(which could be just a text file of HTML depending on your choice).
11

12.  ESRB requires functionality to query their database to generate search results
for a third party web widget.
 Netsoft shall be responsible for the developing a web service to generate result
sets in response to queries from the Clear Spring widget. The widget shall
make requests for rated games by specifying a keyword. The work performed
by Netsoft USA shall encompass the following items:
• Define the interface for the calls to be made by the widget
• Define the result set format (XML) to be provided in response to widget calls
• Provide a mechanism by which the number of results returned can be attenuated (limit the number
of rows)
12

13.  URL (subject to change) http://esrb.org/SearchWidget/services/Search?wsdl
(no https requested)
 Parameters
• searchKeyword
 Text to search
• maxResultCount
 Maximum number of records to return (e.g. 50 records)
• user (subject to change)
 “ESRB_test”
• pass (subject to change)
 “ESRB_test”
13

14.  Return fields
• Certificate
 Game certificate number (5 digits)
• Title
 Game title (like ‘%[search text]%’ search condition against the game title
and sorted by Rating Release Date)
• Rating
 Game rating (short text format), e.g. “E,” “E10+,” “T,” etc.
• Platforms
 Comma delimited list of platforms, e.g. “Xbox, Xbox 360, Playstation 3”
• Descriptors
 Comma delimited list of content descriptors, e.g. “Blood and Gore, Strong
Language, Violence”
14

15. 15

16. 16

17. 17

18. 18
The Altova MissionKit is an integrated suite of XML, database tools designed
to meet the diverse development and data management needs of today’s
software architects and XML developers.
XMLSpy® 2009 is the industry's best selling XML development environment.
It offers the top XML editor, schema designer, code generator, file converters,
debuggers, profilers, support for XSLT, XQuery, Office 2007/OOXML, XBRL,
WSDL, SOAP, Visual Studio, Eclipse, & more.
Link of a Flash demo of the SOAP client and SOAP debugger.
http://www.altova.com/videos.asp?type=1&video=soap