Steps of Software Development

- November 15, 2017
In software development, there are seven steps or phases that are listed below:-
  1. Planning
  2. Analysis
  3. Design
  4. Coding
  5. Testing
  6. Implementation
  7. Maintenance
In this article, you will learn or know about the complete explain of general phases in program development.
Each step has its own importance so read this article completely to clear the concept about general phases of software development.

1- What is PLANNING

In software development, the planning phase is the first step to develop a program. When a customer request to develop a new software then this phase begins. Actually, thie phase is a bundle of tasks or activities which decide the resources, costs, limits and so on. The above tasks required in software development. In short, planning is the first step in program development in which we make a plan about software that will be developed.

2- What is ANALYSIS

"In software development, the step in which the requirements and expectations of the users are collected and analyzed is called analysis."

The collected requirements and expectations help to clear the concept about the problem which the software is to solve. The person who is responsible for the analysis is called "analyst".
In analysis phase, there are two main activities:-
  • Problem understanding or problem analysis.
  • Requirement specifications.

The first activity of this phase is the problem analysis. In problem analysis, the analyst has to understand the problem for the development of the software system according to the customer or user's requirements. The analysis typically requires a thorough understanding of the existing system. In problem analysis,  a clear concept is needed of the following:-
  • We are the inputs to the system and what is their format? 
  • We are the expected output? 
  • What processing steps are required to transform the inputs into outputs?
To get the better results, information is collected from the end user and client as well as studying the system's documentations and manuals.
Now, requirement specifications activity starts. In this activity, the requirements are described.  Requirement analysis involves the following three activities.
  • Requirements gathering through surveys, interview, on-site observations and documentations etc.
  • Requirements of analyzing. 
  • Recording requirements in different documents such as forms, reports, tables and diagrams etc.

3- What is DESIGN

"The design activity in software development is to performed to translate the requirements collected in the analysis into a logical representation of software system. "
This logical representation can be assessed for quality of software before writing a program.
In design phase, there are four different process:-
  1. Data structure
  2. Software architecture
  3. Interface representation
  4. Procedural detail
   The design phase is further divided into two categories.
  • System Design
  • Detailed Design

System Design


In system design, the specifications of the modules of the system and how they intract with each other are identified. In this activity, at last, all the main data structures, output formats, file formats and major modules in the system and their specifications are decided.  

Detailed Design

  In detailed design, the internal logic of each modules is decided. Its mean, in detailed design the main focus is on designing the logic for each of the modules of the system.

4- What is CODING

in this phase, the actual development begins and the software is developed.
"Coding is the process of writing software's instructions using programming language such as C, C++, Pascal, Java, PHP and so on."
The programming language is chosen with respect to the type of software being developed.  The coding is the longest phase of software development.
In this phase, A programmer or team of people programmers code the software.

5- What is TESTING

After coding phase the testing phase begins. In the phase, programmer make sure that the software that is developed works correctly. During this phase, unit testing, integration testing, system testing and acceptance testing are done. In short, testing phase is used to find out the bugs and removing errors.

6- What is IMPLEMENTATION

After successful testing the developed software is delivered to the customer or user for their use.
"The process of installing and running the new software in order to solve the problems is called software implementation."
There is another important aspect of implementation that is training about the new software. Keep in mind that both system training and user training is necessary.
In system training, the members are trained in various technical aspects of the new software. Whereas in user training, the members are trained to operate the new software.

7- What is MAINTENANCE

After software implementation, the operational problems may come up and need to be solved from time to time. Thus, the software may undergo changes after it is delivered to the user.
Maintenance is a very long phase of SDLC. (System Development Life Cycle)
This phase involves the following:-
  • Removing bugs that may occur after the implementation of the program.
  • Improving the software with its revised editions or versions.
  • Adding the new system features according to the requirements of the users.
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