Disconnected Architecture:-

• In this method it is not required to establish prior connection to the database. When request is sent for data connection to the database is established automatically
• Once requested data is dumped into client machine memory, no more connection is maintained to the database

Step1: Client sends request for required data from the server, at the time of request only connection to database is automatically opened

Step2: Requested data is dumped into client machines memory as Process Area (PA). Once data is dumped into Process Area, no more connection is maintained to the database and the connection is closed automatically

Step3: User starts interacting with process area data

Step4: After completion of user interaction, Process Area data is updated to the database. While updating the data again connection is automatically opened & closed after updating

     Disadvantage of Disconnected Architecture:-

• Cannot be used where immediate updating of data is required
• Not suitable where security of the data is most important