8. A computer hardware apparatus for generating a Service-Oriented Architecture (SOA) policy based on a context model, comprising: an application scope generating module configured to generate an application scope of the SOA policy; a processor configured to generate the context model for generating a Service-Oriented Architecture (SOA) policy, the processor including: a collector configured to collect SOA metadata documents compliant with the application scope of the SOA policy; an inter-document reference establishing module configured to establish inter-document references among the SOA metadata documents; and an aggregator configured to aggregate the SOA metadata documents according to the inter-document references to generate a context model; an action list generator configured to generate an action list for the context model based on action semantic modules customized by a user; a condition generator configured to generate a condition part of the SOA policy; an action generator configured to generate an action part of the SOA policy according to the action list; and a policy generator configured to combine the condition part and the action part to generate the SOA policy wherein the inter-document references causes the SOA metadata documents to be mutually referenced.
8. A computer hardware apparatus for generating a Service-Oriented Architecture (SOA) policy based on a context model, comprising: an application scope generating module configured to generate an application scope of the SOA policy; a processor configured to generate the context model for generating a Service-Oriented Architecture (SOA) policy, the processor including: a collector configured to collect SOA metadata documents compliant with the application scope of the SOA policy; an inter-document reference establishing module configured to establish inter-document references among the SOA metadata documents; and an aggregator configured to aggregate the SOA metadata documents according to the inter-document references to generate a context model; an action list generator configured to generate an action list for the context model based on action semantic modules customized by a user; a condition generator configured to generate a condition part of the SOA policy; an action generator configured to generate an action part of the SOA policy according to the action list; and a policy generator configured to combine the condition part and the action part to generate the SOA policy wherein the inter-document references causes the SOA metadata documents to be mutually referenced. 11. The computer hardware apparatus of claim 8 , wherein the action generator comprises: a module displaying unit configured to display the action semantic modules in the action list; a module selecting unit configured to select required action semantic modules; and a parameter setting unit configured to set parameters in the action semantic modules.