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

Qwerty-based keyboards, QWERTY-based keyboards In addition the standard...

QWERTY-based keyboards In addition the standard alphabet keys having QWERTY arrangement, a computer keyboard also comprises the control (alt, Del, Ctrl etc. keys) and function

Define interrupts and instruction cycle, Q. Define Interrupts and Instructi...

Q. Define Interrupts and Instruction Cycle? Let's precise the interrupt process, on the event of an interrupt, an interrupt request (in form of a signal) is concerned to CPU. T

How can we create an outline around text, Place some text wherever. Then cl...

Place some text wherever. Then click "Create path from text" in the "Text tool option" window. Then use "Edit" -> "Stroke path" and choose the appropriate options in the following

Evaluation functions, Evaluation Functions: Evaluation functions calcu...

Evaluation Functions: Evaluation functions calculate approximately the score which can be prove of guaranteed if a particular world state is reached. Same like in chess, evalu

Open system interconnection networking model, Q. Open System Interconnectio...

Q. Open System Interconnection Networking Model? An open system is a model which allows any two different systems to communicate regardless of their underlying architecture. Th

Define bootstrap loader, Define bootstrap loader? The ROM portion of ma...

Define bootstrap loader? The ROM portion of main memory is required for storing an initial program known as bootstrap loader. It is a program whose function is to start the com

Garbage collector to free the memory, In .NET Compact Framework, can I free...

In .NET Compact Framework, can I free memory explicitly without waiting for garbage collector to free the memory?  Yes you can clear the memory using gc.collect method but it i

Explain HLL program & execution of machine language program, Give the Schem...

Give the Schematic of Interpretation of HLL program and execution of a machine language program by the CPU. The CPU utilizes a program counter (PC) to notice the address of nex

Explain about theta notation, Q. Explain about Theta Notation? Theta Θ...

Q. Explain about Theta Notation? Theta Θ Notation : The set Θ (g(n)) comprises all functions f(n) for that there exist positive constants c1,c2 such that f(n) is squeezed in b

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