Publish Process Model as Web Service

@philb Thanks for your reply, actually i have exposed a Service (Rest Web Service .WSDL File) that i need to interact with, rather than the Process Model, so in such case either i need to go for 'Call Web Service' or it's Corresponding Function, that is what i am trying to invoke by assuming that the above service is provided by some 3rd Part Vendor, but as the result, the Process Model not getting Instantiate which is exposed as Web Service, hence not getting any response. And the reason behind 'calling an Appian model exposed as a webservice from within Appian' is assuming that the information's are stored in different Environment

@philb Thanks for your reply, actually i have exposed a Service (Rest Web Service .WSDL File) that i need to interact with, rather than the Process Model, so in such case either i need to go for 'Call Web Service' or it's Corresponding Function, that is what i am trying to invoke by assuming that the above service is provided by some 3rd Part Vendor, but as the result, the Process Model not getting Instantiate which is exposed as Web Service, hence not getting any response. And the reason behind 'calling an Appian model exposed as a webservice from within Appian' is assuming that the information's are stored in different Environment