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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.

OUR Process

How does SDLC address security?

Security testing was traditionally a separate procedure from the software development lifecycle (SDLC). The security team identified security issues after developing the software. This resulted in a large number of defects that remained undiscovered, as well as heightened security vulnerabilities.


DevSecOps is the practise of including security testing at every level of the software development process. It contains tools and techniques that promote collaboration among developers, security professionals, and operations teams in order to create software that can survive current threats. Furthermore, it guarantees that security assurance processes like as code review, architectural analysis, and penetration testing are included into development initiatives.

OUR Process

How does SDLC compare to other lifecycle management methodologies?

In technology, the phrase software development lifecycle (SDLC) refers to the complete process of technological innovation and support. Other words with comparable meanings are listed below.

The abbreviation SDLC can sometimes refer to the systems development lifecycle, the process for planning and creating an IT system. The system typically consists of several hardware and software components that work together to perform complex functions.The system is often composed of multiple hardware and software components that collaborate to accomplish complicated activities.

The software development lifecycle focuses only on the creation and testing of software components. System development, on the other hand, is a bigger superset that includes the setup and administration of the software, hardware, people, and procedures that might comprise a system. It may encompass responsibilities such as organisational training and change management policies that do not come within the purview of software development.

The construction and maintenance of software programmes until they are no longer necessary is referred to as application lifecycle management (ALM). It entails a number of procedures, tools, and people collaborating to handle all aspects of the lifecycle, including ideation, design and development, testing, production, support, and eventual redundancy.

SDLC goes into deeper depth about the application development process. It is a component of ALM. ALM encompasses the full application lifecycle and extends beyond SDLC. During the lifespan of an application, ALM may have numerous SDLCs.

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