Please give whole answer not only one part .

There is a scenario of student attendence by scanning their card in a scanner per lecture in a day. Teacher login his or her id in teachers portal and give access to the scanner in the class. student come and scan their card in the scanner and their attendaence is the mark in the portal.

Now :

Draw a Complete class diagram (including class attributes and methods)

Draw a Complete Usecase diagram along with usecase diagrams of any 3 functionalities and scenarios.

Identify 3 Important Scenarios of your system under development and make a Sequence of each. (each should contain at least 4 classes and 8-10 steps minimum)

Also draw deployment and component diagram of your system.

Also provide the screens or user interface designs of your system.