n ntrprs srvc bs (SB) mplmnts cmmnctn systm btwn mtlly ntrctng sftwr pplctns n srvc-rntd rchtctr (S). t rprsnts sftwr rchtctr fr dstrbtd cmptng, nd s spcl vrnt f th mr gnrl clnt-srvr mdl, whrn ny pplctn my bhv s srvr r clnt. SB prmts glty nd flxblty wth rgrd t hgh-lvl prtcl cmmnctn btwn pplctns. ts prmry s s n ntrprs pplctn ntgrtn () f htrgns nd cmplx srvc lndscps.