Internet user PC:

This node is used to represent a user who can access the Adventure Builder application using a PC. It is most likely that he is using a web browser to place or track a purchaseorder.

AppServer:

This node is used to represent a server grade machine.

Websphere:

Websphere is used to represent the application server process.

website.ear:

This is an enterprise archive artifact that is deployed on an application server. It contains the consumer website application.

opc.ear:

This is an enterprise archive artifact that is deployed on an application server. It contains the opc application.

DBServer:

This node is used to represent a server grade machine that can host a database.

OracleDBServer:

This is an instance of the Oracle database.

BankServer:

This node is external to the system. It represents the server hosted by a bank that provides services to verify a user's account.

LodgingServer:

This node is external to the system. It represents the server hosted by a lodging supplier that provides services to place a lodging purchase order.

AirlinesServer:

This node is external to the system. It represents the server hosted by an airlines supplier that provides services to place a transportation purchase order.

ActivitiesServer:

This node is external to the system. It represents the server hosted by an activities supplier that provides services to place an activities purchase order.