Elements of use case diagram: Actor. â¢ Actor is someone interacting with use case. (system function). Named by noun. â¢ Similar to the concept of user, but. a user can play different roles; (example: a prof. can be instructor and. researcher â plays 2 roles with two systems). â¢ Actor triggers use case. â¢ Actor has responsibility toward the system (inputs), and Actor have expectations from the system (outputs).
Related Manuals for Lenovo Laptop. Summary of Contents for Lenovo Laptop. Page 1: User Guide Lenovo User Guide Read the safety notices and important tips in the included manuals before using your computer. Page 2 Notes â¢ Before using the product, be sure to read Lenovo Safety and General Information Guide first.
Tip. Some Lenovo computers have a Bluetooth button that might be located next to the Bluetooth light, on the right hinge cover or on the LCD bezel. If you have a Bluetooth button, turn the button to the On position and then press Fn-F5 to activate Bluetooth.ave. On most Lenovo computers, you can press Fn-F5 to display the Lenovo Wireless Device Settings window with options to enable and disable both your wireless and Bluetooth networking.