Software Development Life Cycle (SDLC) Models

8 Software Development Life Cycle (SDLC) Models Used in 2025

In the ever-evolving landscape of software development, the year 2025 continues to see innovation in how systems and applications are designed, developed, and deployed. The choice of a Software Development Life Cycle (SDLC) model directly impacts the success of a project. By understanding these models, organizations can streamline workflows, improve quality, and minimize risk. Let’s explore eight of the most prominent software development models in use in 2025.

  1. Agile Model

Agile has remained a dominant force in software development due to its flexibility and iterative approach. Agile focuses on delivering small, incremental releases of software, often within a couple of weeks. In 2025, Agile has evolved to integrate advanced automation, AI-driven testing, and continuous feedback loops, which enhance team collaboration and customer satisfaction.

Key Features:

  • Iterative and incremental approach
  • Emphasizes collaboration between cross-functional teams
  • Continuous feedback and improvement
  • Highly adaptable to changing requirements

Use Case: Agile is ideal for projects where requirements are expected to evolve throughout the development process, such as mobile application development or web-based applications that require frequent updates.

  1. DevOps Model

The DevOps model focuses on integrating development and operations teams to ensure faster delivery and more reliable software releases. In 2025, DevOps has evolved with extensive use of cloud-native tools and Infrastructure as Code (IaC) to accelerate deployment and improve scalability.

Key Features:

  • Continuous integration and continuous delivery (CI/CD)
  • Strong collaboration between development and operations
  • Automation of testing, deployment, and monitoring processes
  • Quick identification and resolution of issues

Use Case: DevOps is ideal for organizations that require frequent and reliable updates, such as large-scale enterprise software, cloud-based applications, or e-commerce platforms where uptime and availability are crucial.

  1. Waterfall Model

Despite being one of the older models, the Waterfall approach still has a place in 2025, particularly in industries where projects require a strict sequential process. The Waterfall model follows a linear progression, where each phase must be completed before moving to the next. It is particularly suitable for projects with well-defined requirements that are unlikely to change.

Key Features:

  • Sequential and linear process
  • Clearly defined stages: Requirements, Design, Implementation, Testing, Deployment, and Maintenance
  • Emphasis on documentation and detailed planning

Use Case: The Waterfall model works well for projects with rigid structures and well-defined requirements, such as government projects, manufacturing systems, or large enterprise resource planning (ERP) implementations.

  1. Spiral Model

The Spiral model combines elements of both the Waterfall model and iterative development, offering flexibility and risk management. In 2025, the Spiral model has evolved to support complex and large-scale projects, particularly in industries like aerospace and defense, where risk analysis is critical.

Key Features:

  • Emphasis on risk analysis and mitigation
  • Iterative phases where the project is revisited and refined
  • Flexibility to adapt to changes
  • Continuous stakeholder involvement

Use Case: The Spiral model is best suited for high-risk, large-scale projects where changes are likely to occur during development, such as aerospace projects or complex engineering systems.

  1. V-Model (Validation and Verification)

The V-Model, also known as the Verification and Validation model, is an extension of the Waterfall model. It emphasizes a strict testing phase after each development stage. In 2025, the V-Model is used in highly regulated industries where safety and accuracy are critical, such as healthcare, automotive, and aviation.

Key Features:

  • Emphasis on validation and verification at each stage
  • Parallel development and testing activities
  • Early detection of defects through rigorous testing
  • Highly structured approach

Use Case: The V-Model is ideal for projects in regulated industries where precision is essential, such as medical devices, automotive safety systems, and aviation software.

  1. Scrum Model

A subset of the Agile methodology, Scrum has become one of the most widely used frameworks for managing and developing software projects. In 2025, Scrum is enhanced with AI-powered project management tools that help teams identify bottlenecks and improve efficiency.

Key Features:

  • Iterative process with time-boxed sprints (2-4 weeks)
  • Emphasis on self-organizing teams
  • Regular feedback through daily stand-ups and sprint reviews
  • Product backlog refinement and prioritization

Use Case: Scrum is best suited for projects where the product owner wants regular delivery of working software, such as consumer software products or SaaS platforms that undergo frequent updates.

  1. RAD (Rapid Application Development) Model

The Rapid Application Development (RAD) model focuses on quickly developing applications with user feedback at every stage. In 2025, RAD has integrated tools like low-code and no-code platforms, enabling faster prototype development and reducing the time from concept to launch.

Key Features:

  • Emphasis on user feedback and rapid prototyping
  • Focus on early delivery of functional components
  • Flexibility to change requirements during development
  • Collaborative and user-centric approach

Use Case: RAD is ideal for projects with tight deadlines or for businesses that require quick software iterations, such as startups building MVPs (Minimum Viable Products) or internal business applications.

  1. Big Bang Model

The Big Bang model is known for its lack of formal structure, where developers jump into coding with minimal planning and design. Although risky, this model is still used in small-scale or experimental projects in 2025, where there is room for failure and experimentation.

Key Features:

  • Minimal planning and high flexibility
  • Suitable for small teams and projects
  • Lack of clear stages or timelines
  • High-risk, high-reward development

Use Case: The Big Bang model is typically used for experimental software development projects or small proof-of-concept initiatives where a structured approach is not necessary, and the team can afford to take risks.

Conclusion

Choosing the right software development model is critical to the success of a project. The evolving nature of the software industry in 2025 has seen significant enhancements in traditional models through the integration of AI, automation, and cloud technologies. Each model has its strengths and weaknesses, and the best choice depends on the project’s size, complexity, and requirements. From Agile’s flexibility to the structured approach of Waterfall or the risk-driven Spiral model, understanding the nuances of these models allows organizations to select the best approach for their unique needs.

Whether building enterprise-grade software, developing consumer-facing applications, or managing experimental projects, businesses must evaluate each software development services model based on timelines, budgets, risks, and client demands. By doing so, they can ensure more efficient workflows, higher quality outcomes, and a more successful software delivery process.

Organizations can further leverage their SDLC model choices by partnering with IT services providers. For example, Vividtech Solutions offers comprehensive IT services and consulting, ensuring that businesses align their software development strategies with industry standards and innovations.

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