A method is applied to a first network element, and includes receiving first information from a terminal device, where the first information describes an intent; obtaining a capability and a capability invoking method of at least one object, where the capability of the at least one object is related to the intent; determining an information exchange method between the first network element and the at least one object based on the capability and the capability invoking method of the at least one object, where the information exchange method is for implementing the intent; and invoking the capability of the at least one object based on the information exchange method.