A service enabler architecture layer (SEAL) system for a wireless communication network and a method therefor are provided. The SEAL system includes: a SEAL function entity including SEAL service servers corresponding to functionalities associated with service applications, where the SEAL function entity is an intermediate layer between a 3GPP network core and a service application system, and interfaces provided by the SEAL service servers. The SEAL system also provisions inter-services communication in a SEAL system of wireless communication network by receiving a request from a service application system for accessing at least one functionality of a plurality of functionalities, determines at least one functionality of the plurality of functionalities requested by the service application system based on the request, and provides at least one functionality to the service application system based on the inter-services communication in the SEAL system.