UML use case diagram - Ticket processing system

"An example scenario is presented to demonstrate how a common issue tracking system would work:
(1) A customer service technician receives a telephone call, email, or other communication from a customer about a problem. Some applications provide built-in messaging system and automatic error reporting from exception handling blocks.
(2) The technician verifies that the problem is real, and not just perceived. The technician will also ensure that enough information about the problem is obtained from the customer. This information generally includes the environment of the customer, when and how the issue occurs, and all other relevant circumstances.
(3) The technician creates the issue in the system, entering all relevant data, as provided by the customer.
(4) As work is done on that issue, the system is updated with new data by the technician. Any attempt at fixing the problem should be noted in the issue system. Ticket status most likely will be changed from open to pending.
(5) After the issue has been fully addressed, it is marked as resolved in the issue tracking system.
If the problem is not fully resolved, the ticket will be reopened once the technician receives new information from the customer. A Run Book Automation process that implements best practices for these workflows and increases IT personnel effectiveness is becoming very common." [Issue tracking system. Wikipedia]
The UML use case diagram example "Ticket processing system" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.

"Banks offer many different channels to access their banking and other services:
(1) Automated Teller Machines.
(2) A branch is a retail location.
(3) Call center.
(4) Mail: most banks accept cheque deposits via mail and use mail to communicate to their customers, e.g. by sending out statements.
(5) Mobile banking is a method of using one's mobile phone to conduct banking transactions.
(6) Online banking is a term used for performing multiple transactions, payments etc. over the Internet.
(7) Relationship Managers, mostly for private banking or business banking, often visiting customers at their homes or businesses.
(8) Telephone banking is a service which allows its customers to conduct transactions over the telephone with automated attendant or when requested with telephone operator.
(9) Video banking is a term used for performing banking transactions or professional banking consultations via a remote video and audio connection. Video banking can be performed via purpose built banking transaction machines (similar to an Automated teller machine), or via a video conference enabled bank branch clarification.
(10) DSA is a Direct Selling Agent, who works for the bank based on a contract. Its main job is to increase the customer base for the bank." [Bank. Wikipedia]
The UML use case diagram example "Banking system" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.