The Different Techniques of Software System Design

The Different Techniques of Software System Design

The construction of a Software system Design portrays its key constituents, their links, and how they work together in liaison with each other. Software structural design and plan comprises a number of contributing aspects like quality features, business tactics, plan, human dynamics, and IT settings.

Over the past 2 decades, quite a lot of large-level developments have been taking place in major web apps. These developments have specified the way we conceive about Software system Design. Every one of the applications plus services used in our everyday life, like Instagram, Face book, as well as Twitter, is scalable arrangements. Billions and trillions of people all over the world access these systems simultaneously; hence they have to be planned to deal with huge amounts of data and traffic. This is exactly where software system plan comes in.

Hence a design which helps in organizing the various program modules in a way which helps in making changes and developments easy is considered to be a good Software system Design.

Importance of a good Software system Design:

A good system design helps in –

  1. Understanding, organising and comparing easily and if need be of any pre-existent code.
  2. Writing a few codes and creating original programs which support the application of the system.


This method of a Software system Design begins from the last level elements as well as subsystems. By means of these components, the subsequent immediate higher-stage elements as well as subsystems are formed or created. The procedure continues till every one of the elements and subsystems are compiled into a solitary constituent, which is regarded as the total system.


If a new system has to be developed by applying the indispensable info of an already existing system then this strategy of bottom-up approach serves the purpose.


  • Results can be seen in the economics when common solutions are reusable.
  • It can be applied to conceal the low-level features of performance and be combined with the top-down approach.


  • This technique is not so strongly linked to the structure of the issue.
  • It is very difficult to create high-quality bottom-up solutions.
  • It extends to the increase of potentially useful tasks instead of the most suitable ones.

Top-down approach:

Under this approach the system is separated into a number of subsystems as well as components. Then each and every one of the subsystems is again separated into a set of subsystems as well as elements. This dividing procedure helps to form a structure hierarchy. The entire software system is regarded as a solitary entity and with reference to the attributes; the arrangement is divided into element and sub-system. In the same way the entire sub-systems are arranged. 

This procedure continues till the system’s lowest stage is attained. The design normally starts at first by fixing the system altogether and then adds descriptions of the subsystems as well as elements. Thus a complete system is created once all the definitions are combined together. 


This approach is best used when a system has to be created right from the ground level.


  • The very strong focus on the needs assists in designing requirement based system and incidentally this is the main advantage of this approach.


  • The limits of the project as well as the system lean towards being app spec- tailored. Hence the merits of element reuse may most likely be missed.
  • A good structured and the gains of a simple architecture may be missed by the system.

Hybrid Design:

Hybrid Software system Design is a combo of both the above mentioned strategies. Reusing of modules becomes easier in this approach.


A software developer is thus progressively more anticipated to comprehend the different concepts of system design plus the method in which to enforce them. In the beginning of one’s career, getting trained in Software system Design from the masters will let one to deal with the problems of a software design more confidently and relate design codes to everyday work. Once a person starts progressing in his/her career and attends interview for higher positions, this training in system design will be of a great help.