Interested to Buy Any Domain ? << Click Here >> for more details...
Difference between Top down and bottom up approaches for a
given project ?
- 14 Answers
- 111793 Views
- BSNL, CSC, HCL, HP, IIT, Infosys, Siemens, I also Faced
- E-Mail Answers
Answer Posted / koteraj
Top down design proceeds from the abstract entity to get to
the concrete design. Bottom up design proceeds from the
concrete design to get to the abstract entity.
Top down design is most often used in designing brand new
systems, while bottom up design is sometimes used when one
is reverse engineering a design; i.e. when one is trying to
figure out what somebody else designed in an existing system.
Bottom up design begins the design with the lowest level
modules or subsystems, and progresses upward to the main
program, module, or subsystem. With bottom up design, a
structure chart is necessary to determine the order of
execution, and the development of drivers is necessary to
complete the bottom up approach.
Top down design, on the other hand, begins the design with
the main or top-level module, and progresses downward to the
lowest level modules or subsystems.
Real life sometimes is a combination of top down design and
bottom up design. For instance, data modeling sessions tend
to be iterative, bouncing back and forth between top down
and bottom up modes, as the need arises.
| Is This Answer Correct ? | 105 Yes | 35 No |
Post New Answer View All Answers
Explain how would you handle a situation where you cannot call the destructor of a local explicitly?
Which software is best for c++ programming?
What are the manipulators in c++?
What is the difference between passing by reference and passing a reference?
What is c++ virtual inheritance?
When is dynamic checking necessary?
What is the difference between an external iterator and an internal iterator? Describe an advantage of the external iterator.
How should runtime errors be handled in c++?
Why pointer is used in c++?
Why can templates only be implemented in the header file?
Define the process of handling in case of destructor failure?
Name the operators that cannot be overloaded in C++?
Explain Text Manipulation Routines?
Differentiate between an array and a list?
State two differences between C and C++.
