Explain the principles of design, Computer Engineering

Assignment Help:

In structure chart whole application is divided into modules (set of program instructions) and modules are designed according to some principles of design. These are:

Modularity and partitioning: Every system must comprises a hierarchy of modules. Lower level modules are usually smaller in size and scope compared to higher level modules. They serve to partition processes in separate functions.

Coupling: Modules must be loosely coupled. Which means that modules must have little dependence on other modules in a system.

Cohesion: Modules must be highly cohesive. It means that modules must carry out a single processing function.

Span of control: Modules must interact with and manage functions of a limited number of lower level modules. It means that number of called modules must be limited (in a calling module).

Size of Module: Number of instructions present in a module must be limited so that module size is normally small.

Shared use of Functions: Functions must not be duplicated in separate modules may be shared. It means that functions can be written in a single module and can be invoked by any other module when required.


Related Discussions:- Explain the principles of design

What are common reason for error massages while copying file, Q. What are c...

Q. What are common reason for error massages while copying file? While copying files with copy, DOS in encounters any error, it displays a suitable error massage. The common re

C programming, A palindrome is a string that reads the same from both the e...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

State the term- use a define function, State the term- Use a define functio...

State the term- Use a define function This is almost exactly the same approach as #define and -D compiler arg that C programs use. In your  Verilog  code,  use  a  'define  to

How to calculate the logic circuit outputs, How to Calculate the Logic Circ...

How to Calculate the Logic Circuit Outputs? Once the Boolean expression for a circuit output has been acquired, the output logic level can be determined for any set of input le

Explain about the term e-cash, Explain about the term E-Cash. E-cash is...

Explain about the term E-Cash. E-cash is cash demonstrated by two models. E-cash has one is on-line form of e-cash, that is introduced by DigiCash that permits for the completi

Describe functions of data flow diagram, Describe functions of data flow di...

Describe functions of data flow diagram After you have roughly designed data flow diagram, you could write a description of each function and you could describe the function i

Virtual manufacturing system, Virtual Manufacturing System Virtual manu...

Virtual Manufacturing System Virtual manufacturing system or VMS is a synthetic, integrated manufacturing environment, developed by using information technology tools, exercise

Explain what is defecttracker, DefectTracker from Pragmatic Software - D...

DefectTracker from Pragmatic Software - Defect Tracker is a fully web-based defect tracking and hold up ticket system that manages issues and bugs, customer needs, test cases, a

What is SSTF, SSTF stands for ? Ans. Shortest-Seek-time-first scheduli...

SSTF stands for ? Ans. Shortest-Seek-time-first scheduling.

What are the uses of ramps, What are the uses of Ramps? Ramps: I...

What are the uses of Ramps? Ramps: It is a network planning method which makes the most efficient use of manpower, cash resources and materials among various projects go

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd