【71-75】Unified Modeling Language （UML） is a widely used method of visualizing and documenting an information system. The UML can be used to develop （71） , in which an object represents a person, place, event, or transaction that is significant to the information system. Systems analysts define an object，s attributes during the （72） . An object also has （73） , which are tasks or functions that the object performs when it receives a message, or command, to do so. A（n） （74） is a group of similar objects. If objects are similar to nouns,attributes are similar to adjectives that describe the characteristics of an object. Objects can have a specific attribute called a(n) （75） , which of an object is an adjective that describes the object，s current status. All objects within a class share common attributes and methods, so a class is like a blueprint, or template fbr all the objects within the class.
