ocr: CLIENTS CONTEXT SERVERS DISTRIBUTED COMPONENTS DATA STORES (Cient & Communication Context) Transaction Aanagement Messaging M anagement Application Logic Application Server Data Transactions Web Server Replication Uitra-Thin Clients Data (Browers) Data ObjectExecs Requests Data HTML Function Cails URL Application Server Messages Status Transaction Data Message Queue Thin Clients Web: Server (Browers & Special Execs, Messages Messages Plug-ins,lava, Proprietary Message Piug-ins) HTL Queue Application Message Queue Replication Messages Components Application Server Data Data Data Replication l R ...