Software Development Life Cycle
back

Your free e-book!

See when it is not worth using Scrum.
"Why Scrum Doesn't Work" Download

What Is SDLC (Software Development Life Cycle) – Clear Explanation!

The software development cycle (SDLC) describes the stages of software development and the order in which these stages should be implemented. The consequences of each stage are visible in the next steps. It is a complicated process of transforming a user’s need into a product and maintaining that product until it is withdrawn. 

In most phases of the software development life cycle, we find tasks related to quality assurance and testing. A formal description will not guarantee the creation of a high-quality product, but it will certainly help to improve its production.

SDLC definition – What is Software Development Life Cycle?

The software development cycle also called SDLC (Software Development Life Cycle) was created in 1960. It has not evolved much since then and is still successively used for planning, designing, building and supplying IT systems.  

Software development is not a simple matter and no one who participated in a large project needs to be convinced. The times when one person was involved in collecting requirements, analyzing, designing, programming, testing and implementing an IT product are long over. 

6 stages of SDLC – from the beginning to the end of the project

It is especially important nowadays, when human life in a direct and indirect meaning may depend on the software being created. Therefore, processes, methods and methodologies are being developed for software development and management that attempt to describe this complex mechanism for creating and maintaining software. 

To put it simply it is a series of interdependent stages in which activities are undertaken, starting from the disclosure of the need to build an IT system, the presentation of its ideas, construction, use, adapted to possible changes in functioning (usually resulting from due to changing environmental conditions) and ending with decommissioning.

Software Engineers - development team

We can distinguish several permanent stages for virtually every project:

  1. Planning – collection and analysis of requirements presented by clients, stakeholders, industry experts, based on market research. Based on the requirements, further actions are planned and a strategy is developed. Clarity of user requirements. Often, the requirements are not clear and understandable at first, sometimes they are not even well documented. The first stage of the project is more than once to discover and understand the purpose of the future user. Good business analysis and prototyping are useful here.
  2. Analysis – defining the problems encountered by the team during software development, restriction analysis, analysis of goals as functions, recommendations. Sometimes, a critical factor is the limited time for execution (e.g. limited access to resources) or a strictly defined deadline for putting the product into service. In both cases, the project must be very predictable already at the planned stage.
  3. Design – designing a product based on collected requirements and analyses, consultations. This is the moment when designers bring their creativity into motion, UX in combination with UI can change the most boring project into a real gem.
  4. Implementation – product development, code creation. The teams of developers in accordance with established documentation, technology and methodology of software developers create the code in accordance with the designs of designers.
  5. Testing & Integration – software testing and interaction with libraries, databases or other programs.
  6. Maintenance – training of software users, providing documentation, providing assistance in using the software, ongoing resolution of errors and failures.

Variants, techniques, and strategies for software development as extensions and modifications of the basic models:

  • Document-driven development
  • Prototyping
  • Discovery Manufacturing
  • Additive manufacturing
  • Spiral model

Approach to SDLC – What is Software Development Life Cycle

Difficulties in building large force systems, many years ago, the need to systematize the process of manufacturing IT systems. Therefore, models were created to organize the actions taken and the states in which the IT product is located. Currently, the collection of software life cycle models is extremely rich.

Two approaches can be used to develop software using SDLC and these are the traditional (Waterfall) and agile (Agile) approaches. Software engineering seeks to identify and describe the basic phases of software development and operation, as well as indicate a model for the optimal course of these phases.

These terms are often not fully understood. It is very common to believe that the cascade process is an outdated process, and the iterative process is the only valid approach. the choice of process depends to a large extent on the nature of the project, and thus there is no single valid software life cycle model. Moreover, most often it turns out that in practice models that are modifications or hybrids of basic processes perform best.

Conclusions – Explanation of Software Development Life Cycle 

The software life cycle (SDLC) – from the idea to its exit from the market is a long process. Analyzes, implementations, maintenance or other activities often require the cooperation of dozens of experienced programmers. However, SDLC is something you can’t avoid because every step is worth its weight in gold and omitting even another one will cause the failure of the project.


cto - Chris Gibas

Free 30-minute consultation with our CTO

Chris Gibas - our CTO will be happy to discuss your project! Let's talk!

More blog posts
Decentralized Finance (DeFi) – what is it?

Oleksandra Bilokrys

Decentralized Finance (DeFi) – what is it?

Decentralized Finance, in short DeFi, is a concept which enables entrepreneurs who choose to take advantage of blockchain technology and traditional financial instruments in a decentralized architecture. Two examples of DeFi applications are Bitcoin and Etherum. They are both controlled by big networks of computers and not central authorities. What does that mean and why is DeFi becoming more and […]

What are smart contracts and what is their potential for business?

Are you interested in blockchain technology, and you are wondering what its business potential is? To understand the possible application in your industry, you first need to learn how it works. One of the most useful tools associated with blockchain is smart contracts. They enable transferring not only fiat currency and cryptocurrencies but also other resources. Smart contracts are applications […]

What are smart contracts and what is their potential for business?

Idego

Substantive support - Oleksandra Bilokrys

How to augment your software development team? Staff augmentation in practice.

Idego

Substantive support - Oleksandra Bilokrys

How to augment your software development team? Staff augmentation in practice.

Do you need high-quality software for your company? In some situations only high-quality, custom solutions can solve certain business problems, but how to develop the right software? No one better than you knows what exactly you need to become more efficient and thus, more competitive. If you do not have enough experienced employees for such a big IT undertaking in […]

Hiring the best machine learning developer – what do you need to know?

Finding and hiring specialists for your IT department is never easy, especially when your company is taking advantage of quite complex IT solutions for business. Do you need to employ the best machine learning developer available on the market? A deep understanding of the IT field – which is a data-based science – is crucial for HR experts and managers […]

Hiring the best machine learning developer – what do you need to know?

Idego

Substantive support - Oleksandra Bilokrys

Get a free estimation

Need a successful project?