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.
Summing it up. Lenovo C40-05 is a typical All-in-One computer, excellent pick for those who donât want the hassle of choosing different parts for their computer separately. Everything comes neatly in one package, with a true âplug and playâ functionality. Of course, being a cheap desktop, something is a compromise.onnections. Lenovo C40-05 has a video connectivity unique for All-in-Ones: thereâs not only a HDMI output but also an input available. So you can use the computer/display both ways: either as a screen for your peripheral, like gaming console, or then a HDTV (or other monitor) as the screen for this Lenovo.