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Explain the dependency relationship of object oriented
A dependency is a relationship which states that a change in specification of one thing can affect another thing, but not necessarily vice versa. In UML, it is shown by dashed directed line. The notation for dependency among components and packages is shown as:
Figure: Dependency between packages
what benefit can a company gain by managing its own infrasture and services
Explain data independence ? Data independence is the capacity to modify the schema at one stage of a database system without having to change the schema at the further level.
For each m:n relationship type R, we make a new table (say S) to represent R. We also contain the primary key attributes of both the participating entity types as a foreign key att
explain normalization,and give the examples 1NF,2NF,3NF,BCNF.AND FUNCTIONAL DEPANDENACY AND DECOMPOSITION TECHNIQUES.
Draw an entity relationship diagram (ERD) for the following situation: A company has a number of employees. Each employee is identified by an Employee_Id. The company wants to st
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The domain that you will model in this assignment is that of courses and students at a university. So as not to make the task too large and unspecified, you will here get a descrip
For the question given below, you are required to submit design and implementation documentation as described over the page. Design, implement (in Java), test and document a set of
The insertion of a tuple in the aim of reference does not cause any destruction. Though, insertion of a tuple in the relation in which, we has the foreign key, for instance, in ASS
What is Hierarchical DBMS In HDBMS, data is structured in a tree like manner. There is a parent-child relationship between data items and the data model is very suitable for re
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