# Implementation details {#gapi_impl} [TOC] # G-API Implementation details {#gapi_impl_header} ## Api layer details {#gapi_detail_api} ### Expression unrolling {#gapi_detail_expr} ### Parameter marshalling {#gapi_detail_params} ### Operations representation {#gapi_detail_operations} ## Graph compiler details {#gapi_detail_compiler} ### ADE basics {#gapi_detail_ade} ### Graph model representation {#gapi_detail_gmodel} ### G-API metadata and passes {#gapi_detail_meta} ## Backends details {#gapi_detail_backends} ### Backend scope of work {#gapi_backend_scope} ### Graph transformation {#gapi_backend_pass}