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.
Although most Lenovo computers are not automatically set-up to boot from the CD, changing this merely requires changing a setting in the BIOS. Step 1. Insert the CD into your Lenovo's CD-ROM drive. Click Start, then Shutdown, then Restart to reboot the computer.Step 2. Enter the BIOS on your Lenovo by pressing the F1 or F2 key repeatedly when the Lenovo or ThinkPad logo screen appears after rebooting the computer.These two keys are used to enter BIOS for most older ThinkPads as well as most of the newer Lenovo or ThinkPad computer models.tep 3. Press the Right Arrow key to highlight the Boot section of BIOS on your Lenovo. Press Enter.. Step 4. Press the Down Arrow key to highlight the IDE CD under Boot Priority Order. Press the + key to move the IDE CD up to the first boot priority order.