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.
Overview. Lenovo System Update is a Shareware software in the category Servers developed by LENOVO. It was checked for updates 8,325 times by the users of our client application UpdateStar during the last month.The latest version of Lenovo System Update is currently unknown. It was initially added to our database on 10/01/2012.Lenovo System Update requires one of the operating systems Windows XP/Vista/Server 2008/7/8/Server 2012/10/8.1 to be running on the computer it will be installed on.Users of Lenovo System Update gave it a rating of 5 out of 5 stars.t was initially added to our database on 10/01/2012. Lenovo System Update requires one of the operating systems Windows XP/Vista/Server 2008/7/8/Server 2012/10/8.1 to be running on the computer it will be installed on. Users of Lenovo System Update gave it a rating of 5 out of 5 stars.