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 is program annotation packages, Q. What is Program Annotation Packages...

Q. What is Program Annotation Packages? A quite renowned scheme in this field is OpenMP a newly designed industry standard for shared memory programming on architectures with u

Evolutionary approaches boil down - artificial intelligence, Evolutionary a...

Evolutionary approaches boil down - artificial intelligence: In fact as we will see whether evolutionary approaches boil down to like (i) just to identify how to represent pos

Time slice, The Linux Process Scheduler uses time slice to prevent a single...

The Linux Process Scheduler uses time slice to prevent a single process from using the CPU for too long. A time slice specifies how long the process can use the CPU. In our simulat

Explain metadata, What is metadata? Metadata is data that explains anot...

What is metadata? Metadata is data that explains another data. Class definition is metadata. Models are inherently metadata as they explain the things being modeled.

Smli firewalls are different from the conventional, SMLI firewalls are diff...

SMLI firewalls are different from the conventional The SMLI firewalls are different from the conventional "stand in" proxies in a way that the stand-in proxies are used for th

Determine the benefits of message passing, Determine the benefits of Messag...

Determine the benefits of Message passing Message passing provides two major benefits: An object's properties are expressed by its methods, thus message passing support

Features of read-only memory, Q. Features of read-only memory? ROMs are...

Q. Features of read-only memory? ROMs are memories on which it's not possible to write data when they are on-line to computer. They can only be read. This is reason why it is k

What is usb, What is USB USB (UNIVERSAL SERIAL BUS) is intended to conn...

What is USB USB (UNIVERSAL SERIAL BUS) is intended to connect peripheral devices like mouse, keyboards, modems and sound cards to microprocessor through a serial data path and

What is vertical organization and horizontal organization, What is vertical...

What is vertical organization and horizontal organization? Highly encoded schemes that use compact codes to state only a small number of control functions in every microinstruc

Multi-threaded processors, Multi-Threaded Processors In unit 2, we have...

Multi-Threaded Processors In unit 2, we have gone through the use of distributed shared memory in parallel computer architecture. Although the use of distributed shared memory

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