What Is .NET?
.NET is the Microsoft Web services strategy to connect information, people,
systems, and devices through software. Integrated across the Microsoft
platform, .NET technology provides the ability to quickly build, deploy,
manage, and use connected, security-enhanced solutions with Web services.
.NET-connected solutions enable businesses to integrate their systems more
rapidly and in a more agile manner and help them realize the promise of
information anytime, anywhere, on any device.
The Microsoft platform includes everything a business needs to develop and
deploy a Web service-connected IT architecture: servers to host Web
services, development tools to create them, applications to use them, and a
worldwide network of more than 35,000 Microsoft Certified Partner
organizations to provide any help you need.
What Are Web Services?
If you ask a developer what Web services are, you'll hear something like,
"self-describing software modules, semantically encapsulating discrete
functionality, wrapped in and accessible via standard Internet communication
protocols like XML and SOAP."
But if you ask a business leader who has implemented Web service-based
solutions, you'll get a different kind of answer. You'll hear that Web
services are an approach that helps the business connect with its customers,
partners, and employees. They enable the business to extend existing
services to new customers. They help the business work more efficiently with
its partners and suppliers. They unlock information so it can flow to every
employee who needs it. They reduce development time and expense for new
projects. You'll hear less about what Web services are and more about what
they enable the business to do.
Benefits of Web Services
By enabling applications to share data across different hardware platforms
and operating systems, Web services provide many benefits, including:
Opening the door to new business opportunities by making it easy to
connect with partners.
Delivering dramatically more personal, integrated experiences to users
through the new breed of smart devicesincluding PCs.
Saving time and money by cutting development time.
Increasing revenue streams by enabling businesses to easily make their
own Web services available to others.
Connecting Applications Through Web Services
Web services are revolutionizing how applications talk to other
applicationsor, more broadly, how computers talk to other computersby
providing a universal data format that lets data be easily adapted or
transformed. Based on XML, the universal language of Internet data exchange,
Web services can communicate across platforms and operating systems,
regardless of the programming language in which the applications are
written.
Each Web service is a discrete unit of code that handles a limited set of
tasks. However, although Web services remain independent of each other, they
can loosely link themselves into a collaborating group that performs a
particular task.
Example: Your Inventory System
Say you have a stand-alone inventory system. If you don't connect it to
anything else, it's not as valuable as it could be. The system can track
inventory, but not much more. You may have to enter inventory information
twiceonce in your accounting system and once in your customer relationship
management system. The inventory system may be unable to automatically place
orders to suppliers. The benefits of such an inventory system are diminished
by high overhead costs.
However, if you connect your inventory system to your accounting system, it
gets more interesting. Now, whenever you buy or sell something, the
implications for your inventory and your cash flow can be tracked in one
step. If you go further, and connect your warehouse management system,
customer ordering system, supplier ordering systems, and your shipping
company, suddenly that inventory management system is worth a lot. You can
do end-to-end management of your business while dealing with each
transaction only once, instead of once for every system it affects. That's a
lot less workand a lot less opportunity for errors.
These connections can be made easily using Web services. Web services allow
the applications to share information through the Internet, regardless of
the operating system or back-end software that the application is using.
Web Services Use Industry-Standard Protocols
Web services also make it possible for developers to choose between
building all pieces of their applications, or consuming (using) Web services
created by others. This means that an individual company doesn't have to
supply every piece for a complete solution. The ability to expose (announce
and offer) your own Web services creates new revenue streams for your
company.
Web services are invoked over the Internet by means of industry-standard
protocols including SOAP; XML; and Universal Description, Discovery, and
Integration (UDDI). They are defined through public standards organizations
such as the World Wide Web Consortium (W3C).
SOAP is an XML-based messaging technology standardized by the W3C, which
specifies all the necessary rules for locating Web services, integrating
them into applications, and communicating between them. UDDI is a public
registry, offered at no cost, where one can publish and inquire about Web
services.
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