Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is(71) . It determines how the various results are computed by the product and presents this information in the form. of a(72) and associated scenarios. The second is(73) , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The last step is(74) , which determines the actions performed by or to each class or subclass and presents this information in the form. of (75) .
A dirty fuel oil filter is can be detected by ()
Ⅰ.fuel oil analysis
Ⅱ.observing the pressure drop across the filter
()is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes.
The Unified Modeling Language is a standard graphical language for modeling object-oriented software()can show the behavior of systems in terms of how objects interact with each other.
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