Information

       Z39.50  ANSI/NISO  "ANSI Z39.50 ; Information Retrieval Service and Protocal "  information Restrieval (IR) Protocal    Data  Information  Data   Information 
        IR  Application software  Client/Server. Client  Origin  Server  Target
        IR  International Organization for Standardization/Open system connetion (ISO/OSI)  layer   implementation  OSI   implementation  TCP/IP (Transmission Control Protocal/Internet
         Information Protocal  uer  Remote network resource  Search  interconnectivity and interoperability  search  remote resources seamles  invisible  user 
        IR software application packages 2  soft ware  user  server
        Interoperability   automation vendor  third-party software   interface  remote systems access
        Protocal   server  client    target  Data base  identifed records
       The origin  user  database  the protocal address commucication  corresponding information retrieval applications  origin  target
         implementors  reliable teransmission  data  mechanical eletrical connections 2. requirement  transmitting, controlling  sending correct  check data  network 3. requirement  quality 
        IR  IR  client  search  server  potocal  user   Binbilpographic record   fulltext
       protocal  search  database 
        IR    information  remote resource user 