How can a programmer be sure that a Web Service will remain active?

[hanesjw]

When setting up a web service it is usually a program that is setup on someone's server. If I write software that depends on this service, what happens when the server goes down? Seems like this could be a big problem with SOA.

[prince]

Have a back up server, at diffrent network place, with some different ISP(Internet) line. 1. If there is a probel in ur network, then ur backup server can help because it is in different network place.2. if there is some problem in internet, then also ur backup server can help because it is having different internet line.Disadvantage is now u have to mattain 2 servers, but if ur data is soo much important then you have to go with this.Thanks

[dvari]

That's the nature of SOA. Your application must test for and respond to this situation gracefully.