SOAP is an acronym for Simple Object Access Protocol, and WSDL is an acronym for Web Service Description Language.
SOAP and WSDL are both XML based. SOAP is an XML based messaging protocol that you can use to transfer patterned data in fulfillment of service in computer device network while WSDL is an XML interface descriptive language that explains services in defined web services.
WSDL is a compilation of network ports. SOAP has four layers of architecture, which are Header, Body, Envelope, and Fault, while WSDL has three main elements, which are Types, Binding, and operation.
In SOAP, coding the initial steps of programming is done with complex queries and while WSDL handles different complex situations and queries to produce the proper machine level outputs. SOAP produces support over most protocols like HTTP, JMS, and SMTP, while WSDL provides support for protocols like SOAP.