Prepare a sequence diagram for issuing a book in the library management system

Prepare an activity diagram for computing a restaurant bill, there should be charge for each delivered item. The total amount should be subject to tax and service charge of 18% for group of six and more. For smaller groups there should be a blank entry. Any coupons or gift certificates submitted by the customer should be subtracted

Prepare a use case diagram and sequence diagram for a computer email system

Prepare a state diagram for an interactive diagram editor for selecting and dragging objects

Categorize the following relationships into generalization, aggregation or association

A country has a capital city

A dining philosopher uses a fork

A file is an ordinary file or a directory file

Files contains records

A polygon is composed of an ordered set of points

A drawing object is text, a geometrical object, or a group

A person uses a computer language on a object

Modems and keyboards are input/output devices

Classes may have several attributes

A person plays for a team in a certain year

A route connects two cities

A student takes a course from a professor

Prepare a class diagram for given group of classes using multiplicity, generalization, association concepts. And add at least 5-7 attributes and 3-5 operations for particular class. City, Airport, Airline, Pilot, Flight, Plane, Seat, Passenger

Prepare a class diagram for given group of classes using multiplicity, generalization, association concepts. And add at least 5-7 attributes and 3-5 operations for particular class Page, Shape, Point, Line, Arc, Ellipse, Rectangle, Circle