10. Explain the relationship between logical and physical design.
What will be an ideal response?
You develop the logical design of an information system during the systems analysis phase of the SDLC. The logical design defines the functions and features of the system and the relationships among its components. The logical design includes the output that must be produced by the system, the input needed by the system, and the processes that must be performed by the system without regard to how tasks will be accomplished physically. Logical design defines what must take place, not how it is to be accomplished. In contrast, the physical design of an information system is a plan for the actual implementation of the system. You develop the physical design during the systems design phase of the SDLC. The physical design is built on the system’s logical design and describes a specific implementation, much like a working blueprint describes the actual construction of a building.
You might also like to view...
The _________ of a number is defined to be the power to which some positive base (except 1) must be raised in order to equal the number.
Fill in the blank(s) with the appropriate word(s).
Sorting ________ from oldest to newest displays data in chronological order
Fill in the blank(s) with correct word
What does the following code do? Assume this method is invoked by using Mystery ( 70, 80 ).
double dblY;
intX = intNumber1 + intNumber2;
dblY = intX / 2;
if ( dblY <= 60 )
{
lblResult.Text = "<= 60 ";
}
else
{
lblResult.Text = " Result is " + dblY;
}
} // end method Mystery
Action details can be displayed in button mode.
Answer the following statement true (T) or false (F)