
Type Use-Case
Function Account Management
Actor User
Description
If a logged-in user is inactive on the system for a pre-defined amount of time, then the system will end the user's current session. Once a user has been logged out (due to inactivity), the user may still access areas of the site where registration and login are not required. However, the user must login if they want to access areas of the site that require a logged in user; the user will be prompted to log in again the next time they make a request to the server for a login-required page.
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Ivar Hjalmar Jacobson. In 1967 he proposed the use of software components in the development of the new generation of software controlled telephone switches Ericsson was developing. In doing this he invented sequence diagrams , and developed collaboration diagrams. He also applied state transition diagrams to describe the message flow between the components.
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