association control service element
英[əˌsəuʃiˈeiʃən kənˈtrəul ˈsɜːvɪs ˈelimənt]美[əˌsosiˈeʃən kənˈtrol 'sɝvɪs ˈɛləmənt]
Association Control Service Element (ACSE) is the OSI method for establishing a call between two application programs. ACSE checks the identities and contexts of the application entities, and could apply an authentication security check.