求翻译：因此，Web服务要想取得成功必须首先解决安全问题，而安全问题的关键在于如何以一种灵活、简便、可互操作的方式来实现跨多个域、跨异构系统的安全服务访问，即单点登录。是什么意思？

Therefore, web services, to succeed you must first solve the security problems and security the key issue is how a flexible, simple and interoperable manner across multiple domains, the security services access across heterogeneous systems, ie single sign-on.

Therefore, Web service if you want to be a success you must first address the issue of safety and security The key question here is how to to a flexible, easy, and interoperable ways to achieve across multiple domains, across heterogeneous systems, the Security Service to access the Single sign-on.

Therefore, the Web service must want to obtain the success to have first to solve the security problem, but how does the security problem key lie in nimbly by one kind, simple, may the Interoperability way realize the cross many territories, the cross isomerism system safe service visit, namely the

Therefore, Web service you want to succeed you must first solve the security issues, and how security problems is the key to a flexible, simple, interoperable way to implement security services across heterogeneous systems across multiple domains, access, single sign on.

正在翻译，请等待...