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OUR Process

Software Development
Lifecycle of Zethic

The software development lifecycle (SDLC) explains the many steps necessary to create a software application. The development process is divided into stages as developers add new features and solve faults in the programme.


The planning phase often involves duties such as cost-benefit analysis, scheduling, resource estimation, and allocation. To build a software requirement specification document, the development team collects needs from a variety of stakeholders, including customers, internal and external specialists, and management.


Software engineers analyse requirements and discover the best solutions to produce software throughout the design process. They may, for example, examine merging pre-existing modules, make technical decisions, and identify development tools. They will consider how to best integrate the new software into the organization's current IT infrastructure.


The development team codes the product during the implementation phase. They analyse the requirements to determine smaller coding jobs that they can complete on a regular basis to get the desired outcome.


To test the programme for flaws, the development team uses both automation and manual testing. Quality assurance entails evaluating the programme for flaws and determining if it fits the needs of the client. Because many teams test their code right away, the testing phase frequently happens concurrently with the development phase.


When software development teams work together, they code and test on a separate copy of the product than the consumers have access to. Customers utilise production software, while other copies are considered to be in the build environment, or testing environment.


Among other things, the team repairs bugs, addresses customer concerns, and manages software modifications throughout the maintenance period. Furthermore, the team evaluates overall system performance, security, and user experience to discover new methods to improve the existing software.

Our Model

What exactly are SDLC

SDLC is conceptually presented in an organised manner in a SDLC model to assist organisations in implementing it. To optimise the development cycle, several models arrange the SDLC phases in differing chronological order. Below are some popular SDLC models.


The SDLC steps are divided into numerous development cycles under the agile methodology. The team moves quickly through the phases, producing only minor, incremental software modifications with each cycle. They continually assess requirements, strategies, and outcomes in order to adjust swiftly to change. The agile paradigm is more efficient than other process models since it is iterative and incremental.

Pros & cons

Rapid development cycles assist teams in identifying and addressing issues in complex projects early on, before they become major concerns. They can also solicit input from clients and stakeholders throughout the project's lifecycle. However, relying too heavily on client feedback may result in excessive scope adjustments or the premature termination of the project.


To prioritise risk assessments, the spiral model combines the small repeating cycles of the iterative approach with the linear sequential flow of the waterfall model. By creating prototypes at each stage, you can use the spiral model to ensure the steady deployment and improvement of software.

Pros & cons

The spiral approach is appropriate for large and complex projects that require regular adjustments. However, it can be costly for smaller enterprises with a limited scope.


The waterfall model successively arranges all phases so that the outcome of each new phase is dependent on the outcome of the preceding phase. In theory, the design flows from one phase to the next, much like a cascade.

Pros & cons

The waterfall paradigm teaches project management discipline and offers a measurable output at the conclusion of each phase. However, once a phase is considered complete, there is minimal room for revision because changes can affect the software's delivery schedule, cost, and quality. As a result, the paradigm is best suited for small software development projects where tasks are simple to organise and manage and requirements can be precisely defined.


According to the iterative approach, teams should begin software development with a minimal list of requirements. They then improve versions progressively over time until the entire software is ready for production. After each iteration, the team creates a new software version.

Pros & cons

Because requirements can vary between iterations, it is simple to identify and manage risks. However, recurrent cycles may result in scope changes and resource underestimate.

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