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.
After installing windows 8.1 update my physical keyboard became practically unusable. Since it was self build machine I bought state of the art laptop yesterday night: Lenovo Yoga Pro 2, high screen resolution.I initialized it and everything worked very well.If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Search.). b. Enter Troubleshooting in the search box, tap or click Troubleshooting, and then tap or click Hardware and Sound.