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

How many bits of data will be produced if voice is converted, If voice is c...

If voice is converted to digital form using PCM, how many bits of data will be produced in half a second? While voice is converted to digital by using PCM that is Pulse Code Mo

What is the use of cache memory, What is the use of cache memory? The u...

What is the use of cache memory? The use of the cache memories solves the memory access problem. In certain, when a cache is included on the same chip as the processor, access

Explain magnetic read and write mechanisms, Q. Explain Magnetic Read and Wr...

Q. Explain Magnetic Read and Write Mechanisms? Data are recorded on and then retrieved from disk via a conducting coil called the head. In numerous systems there are two heads,

Design and development of an information system, This assignment consists o...

This assignment consists of design and development of an information system. The first part of the assignment consists of the design, which includes construction of ER and DFD diag

Software aspects - computer technology , Software Aspects: Software is...

Software Aspects: Software is a generic term covering the concepts, procedures and instructions which enable computer systems to do useful things. Usually, software is conceiv

Describe collective communications, Q. Collective Communications? A num...

Q. Collective Communications? A number of message-passing systems allow communication involving more than two processors. Such type of communication can be known as collective

Write an algorithm for deadlock detection, Write an algorithm for deadlock ...

Write an algorithm for deadlock detection. An algorithm for deadlock detection: 1. Assume that Work and Finish be vectors of length m and n, correspondingly. Initialize:

Show the classification of printers, Q. Show the Classification of Printers...

Q. Show the Classification of Printers? Printers can be classified on following bases: a) Impact: Impact printers print by impact of hammers on ribbon (for example Dot-Matri

Difference between property get, Set Value is ready to ActiveX Object from ...

Set Value is ready to ActiveX Object from the form. Let Value is retried to ActiveX Object from the form. Get- Assigns the value of an expression to a variable or property.

What are sections, Layout pages, can describe sections, which can then be o...

Layout pages, can describe sections, which can then be overridden by particular views making use of the layout. Major and overriding sections is optional.

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