UML use case diagram - Banking system

"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.

"An issue tracking system (also ITS, trouble ticket system, support ticket, request management or incident ticket system) is a computer software package that manages and maintains lists of issues, as needed by an organization. Issue tracking systems are commonly used in an organization's customer support call center to create, update, and resolve reported customer issues, or even issues reported by that organization's other employees. An issue tracking system often also contains a knowledge base containing information on each customer, resolutions to common problems, and other such data. An issue tracking system is similar to a "bugtracker", and often, a software company will sell both, and some bugtrackers are capable of being used as an issue tracking system, and vice versa. Consistent use of an issue or bug tracking system is considered one of the "hallmarks of a good software team".
A ticket element, within an issue tracking system, is a running report on a particular problem, its status, and other relevant data. They are commonly created in a help desk or call center environment and almost always have a unique reference number, also known as a case, issue or call log number which is used to allow the user or help staff to quickly locate, add to or communicate the status of the user's issue or request.
These tickets are so called because of their origin as small cards within a traditional wall mounted work planning system when this kind of support started. Operators or staff receiving a call or query from a user would fill out a small card with the user's details and a brief summary of the request and place it into a position (usually the last) in a column of pending slots for an appropriate engineer, so determining the staff member who would deal with the query and the priority of the request." [Issue tracking system. Wikipedia]
The UML activity 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.