Web Services are
supported on a wide range of platforms.
Web services may extend its interface and add new methods without
affecting the clients as long as they still provide the old methods and
parameters.
- A client makes a request to a web
service, the web service returns the result, and the connection is closed.
There is no permanent connection. This makes it easy to scale up and
support many clients at a time.
- Firewalls can pose a challenge for
distributed object technologies. The only thing that almost always gets
through firewalls is HTTP traffic on ports 80 and 443. Because web
services use HTTP, they can pass through firewalls without explicit
configuration.
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