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.
Lenovo VeriFace Pro is a software program developed by Lenovo. Upon being installed, the software adds a Windows Service which is designed to run continuously in the background.ow to remove Lenovo VeriFace Pro. How to remove Lenovo VeriFace Pro from Windows XP. 1  Click the start menu, select run to stop the program processes. 2  Go to the control panel. 3  Locate the add/remove programs icon to remove the program.