Software Development And Its Need

In simple words, the software is the piece of instructions given to the computer in the form of codes. The codes can be written in any of the programming languages like Java, Python, C++, etc. The process of development of software is known as software development. You will come to know about the reason for the need for software development further below.

Why Is Software Development Needed?

Software development is required because almost all organizations are into digital transformation now, and thus they need software for their automated way of working. A few of the fields that require software development are

  1. OS Development- With so many operating systems in the information technology industry now, apart from the Microsoft OS, there is an extensive need for software developers for the development of operating systems that are mobile-friendly and desktop-friendly. A software developer needs to write kernel modules, device drivers, etc.
  2. Web Development – As a web developer you can do both front-end software development work (using JS, HTML, CSS) and back-end software development work (management of the database, client, and server services, etc.).
  3. Games development- In this case, the development of software for video systems, audio, and user interface can be used.
  4. Mobile developer- A software developer in this field can be hired to build different types of applications like Android, iOS, Oxygen OS, etc.
  5. Data Scientist- This field requires a vast knowledge of python for its applications in machine learning, artificial intelligence, analysis of data, etc. Software developers play a vital role as a data scientist.
  6. Computer vision- For analyzing images, comparing them, and medical imaging, we need software developers.
  7. Distributed systems – With the systems interconnected worldwide and the transfer of information occurring daily, software developers help in the field of computer networking, maintaining concurrent systems and secured systems using cryptography, etc.
  8. Interaction of humans and computers- It can be done by developing software like Siri, which is a voice-controlled system, that lets humans interact using their voice with the Apple devices.

What Is The Software Development Life Cycle (SDLC)?

As its name implies, the software development life cycle includes all the stages involved in the development of software. It begins from a blueprint or a plan layout to design software until the end stage of maintaining it. An SDLC is required to meet a client’s expectations and meeting the deadlines for developing software. You will come to know about the stages involved in an SDLC further below.

  1. Planning- It is considered the most important stage of the software development life cycle, as the further steps and final design of the software is dependent on how well a blueprint is made for it. Therefore, only the experienced software developers of any company are considered for this stage.
  2. Analysis- The requirements of a system will be analyzed thereafter by the project managers, stakeholders, and customers. The analysis is done based on who will use the system, what kind of data will be required, etc.
  3. Designing – After analyzing and collecting information related to the requirements of a system, a designed strategy will be employed for defining the architectural modules of the system.
  4. Implementation- After the final design document has been prepared; you need to implement that design to develop software. Therefore, the stage of designing is considered very important for the final implementation of it. The process of code generation gets like a cakewalk once the design is clear.
  5. Testing- In this stage of SDLC, it is checked whether the software is meeting all the requirements which were analyzed in the analysis stage of SDLC. In case, of any defects, the software will be fixed repeatedly until the requirements are met.
  6. Deployment and Maintenance- After the first testing stage also known as alpha testing, the software will be sent to the user for beta testing, to find any bugs if present in it. The process of maintenance takes place after getting the reviews of the software from the customers.

Types Of SDLC Models

The different types of SDLC models are

  • Waterfall Model- It is based on the goal of ‘finishing a phase before moving on to next’. The output of a phase acts as an input for another phase in this kind of model.
  • Iterative Model- In this, first a part of your system will be implemented and reviewed. The process is iterated until the best version of your software is obtained. Since the working model available through this type of SDLC model is obtained at an early stage, the software deployed is cheaper compared to other SDLC models.
  • V-shaped Model- An extended version of the waterfall model, in which the testing stage is associated with the development stage. Like the waterfall model, in this model also the next stage follows after the first stage is completed.
  • Agile Model- The product is broken down into cycles, which makes the developers work on this model with ease. The main motive of this model is to handle each cycle differently and implementation of new methodologies for the improvement of a software product.
  • Spiral Model- It is a combination of the waterfall model and iterative model. The four phases of determining objectives, identifying and resolving risks, development and testing, and planning the next iterative are repeatedly performed until the product is completed. A highly customizable product can be prepared using this SDLC model.

Due to the sudden pandemic that took over its reins globally in 2020, the digital transformation was a software development trend that was visible in almost all organizations. The year 2021 holds promises for newer software development trends. It is expected that multiple clouds technology will be a new thing to look forward to in the coming months. Further, you can expect the integration of machine learning and artificial intelligence that is going to turn our lifestyle controlled by almost everything automated from smart cars to smart homes. Overall, software development is a field that will continue to shine in the years ahead.

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