use case diagram for online budget system

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Description: Consider the online budgeting control system again, this time you are required to
draw a deployment diagram for the scenario given below:
Architecture of online budgeting control system consists of four tiers of servers; The clients
using browsers on their PC will connect to web server. They may use any of the HTTP or FTP
protocols for their requests. Instead of directly connecting with database, the web server will
invoke the services deployed on an application server to fulfill client’s requests. We assume that
both the web server and application server are deployed on a single mainframe and connected
through any Message oriented middleware (MOM) mechanism. The application server, using
database connectivity protocol (e.g. JDBC or ODBC), interfaces with database server to
send/receive data.