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What is the aim of object design
The aim of object design is to identify object which the system contains and the interactions among them. The system implements specification. The motives of object-oriented design are:
(1) More closely to the problem domain
(2) Incremental change simple
(3) Supports reuse. Objects while Object Oriented Analysis OOA focuses on problem or in other word you can say that semantic objects. In Object Oriented Design we focus on finding a solution. Object Oriented modeling have three phases object modeling, dynamic modeling and function modeling. We will discuss aggregation, multiple inheritance, generalisation in various form and metadata.
What is a state chart diagram? State diagrams (State Chart Diagram) explain all possible states that a particular object can get into, and how object's state changes as result
Example :; transfers transfer_amount from x's account to y's account ; Supposes x&y both accounts exist TRANSACTION (x, y, transfer_amount) Start transaction IF X AND Y
er diagram of sport
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
What is candidate key? Candidate Key - A candidate key of an entity set is a minimal superkey, which uniquely identifies each row in the relation.
Advantages and disadvantages of icloud based storage
Update Operations and Dealing with Constraint Violations There are three basic operations to be executes on relations: Insertion Deletion Update The INSER
external view of DBMS in healthcare department?
What is Multivalued Attribute? Multivalued Attribute - Multivalued attribute might have more than one value for an entity. For instance, PreviousDegrees of a STUDENT.
Explain the conventions for displaying an ER schema as an ER diagram? An E-R Diagram scheme might describe certain constraints to that the contents of a database must conform.
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