1 / 14

WEB SERVICES

This article provides an overview of web services, including their features, benefits, and insights into their future. Learn how web services enable communication between different computers, their role in creating open distributed systems, and the advantages they offer to businesses.

mosely
Download Presentation

WEB SERVICES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. WEB SERVICES Casey Bauer Hannah McMahon John Walls William Hunter Mary Daniel

  2. What is a Web Service? • Collection of functions that are packaged as a single entity and published to the network for use by other programs. • Building blocks for creating open distributed systems, and allow companies and individuals to quickly and cheaply make their digital assets available worldwide. • Basically, a standardized way for multiple machines to communicate via Web-based applications.

  3. Why was it developed? • To provide a reliable and more user-friendly way for different computers to communicate and access information across the Internet • A way to allow organizations to communicate data without intimate knowledge of each other’s IT systems behind the firewall.

  4. How does a Web Service operate? • Extensible Markup Language (XML) • XML tags the Data • Simple Object Access Protocol (SOAP) • SOAP transfers the data (similar to an envelope) • Web Services Description Language (WSDL) • Describes the services available • Universal Description Discovery and Integration (UDDI) • Lists the businesses available

  5. Microsoft and .NET • Microsoft’s version of Web services is .NET • .NET uses the .NET platform platform which allows it to be used on any device, any time, any place. • Only problem is that .NET does not have the ability to run on any operating system • (Haag and Cummings, InformationSystems Essentials, 2006.)

  6. Platforms • A platform may be any application server software that supports a Web Service. • Microsoft’s platform - .NET Platform • Microsoft’s entire suite of tools, technologies, and services that support Microsoft’s vision of connected applications. • (Haag and Cummings, InformationSystems Essentials, 2006.)

  7. Existing Platforms • Microsoft.NET servers from Microsoft • Java Web Services Development Pack from Sun Microsystems • DotGnu from GNU Project • Mono development platform form Novell • NextAxiom Service Runtime Environment from NextAxiom Technology • OpenEdge Platform from Progress Software

  8. Examples of Web Services • Yahoo! - maps, traffic • Google - web search, maps • GoogleEarth • Fed Ex - shipment tracking • Amazon.com - search products, cart system, wish list, product information • Ebay - auction search, bidding, auction creation • Microsoft (MSN) - Virtual Earth

  9. Advantages Provided by Web Services • Interoperability • Open standards and protocols • Low Barrier to Entry • Integrated Services • Reduced Costs • Distributed approach to application integration • Ubiquity • Industry Support

  10. Challenges faced by Web Services • Discovery • Reliability • Security • Transactions • Scalability • Manageability • Accountability • Testing

  11. Disadvantages of Web Services • Still in development • Poor performance compared to other distributed computing approaches • Text-based formats • Neglect toward conciseness of encoding and efficiency of parsing * Fortunately, all of these are temporary problems that are already being rectified.

  12. Progressive Improvements • Most vendors have committed to the OASIS standards to implement the Quality of Service aspects of their products. • XML Infoset standard* • Binary representations promise to improve the wire efficiency of XML messaging

  13. Benefits to Businesses • Time-saving possibilities • Peer-to-Peer Communication • Conversion of multiple web sites and services (Mash-up) • Expansion of Customer Base • Just In Time Inventory

  14. Recap • What is a Web Service? • Features • Benefits • Future of Web Services

More Related