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Agile methodologies have become increasingly important in the competitive and dynamic landscape of software development, primarily due to their ability to quickly adapt to change and deliver continuous value over time. Agile software development operates through short, incremental iterations, emphasizing collaboration among multidisciplinary teams, process flexibility, and continuous improvement. The result is both more efficient processes and greater client and user satisfaction.
The difference isn’t just theoretical. Data cited by Relevant Software shows that only 9% of agile projects fail, compared to 29% of projects run under the Waterfall model — a large enough gap to explain why most technology companies operate this way today.
In this article, we’ll walk through the 8 stages of the Agile Software Development Cycle and show how each one is essential to a project’s success. These practices are part of daily life at Nextage, a company that combines technological innovation with agile methodologies to build tailored, high-quality solutions.
If you’re a CTO, IT Director, or product manager, this article also answers a question that goes beyond theory: why bringing in an external squad that already masters this cycle is often faster and more efficient than building agile from scratch with an in-house team. That perspective shows up at the end of each step and in a section dedicated to the topic.
The 8 steps, at a glance
- Planning — goals, scope, resources, and timeline.
- Requirements Analysis — understanding the problem and prioritizing features.
- Design — architecture, interface, and prototypes.
- Development (Implementation) — code, TDD, and continuous delivery.
- Testing — unit, integration, and acceptance validation.
- Review and Retrospective — stakeholder feedback and process improvement.
- Delivery (Deployment) — production rollout and initial monitoring.
- Maintenance and Support — fixes, enhancements, and continuous monitoring.
1. Planning
Planning is the first and most crucial phase of any project. Here, the team defines the overall goals, the software scope, the necessary resources, and creates a timeline while aligning the budget. It’s also when the team identifies the target audience and maps their needs.
- Software scope: What problems will the product solve?
- Necessary resources: Teams, technologies, and infrastructure.
- Timeline and budget: Prioritizing fast, efficient delivery.
- Target audience: Identifying user needs to align deliverables with business value.
Within agile methodologies, planning is an iterative process, meaning a cycle repeated multiple times, where each repetition adjusts and refines the previous work. This continuous process allows planning to be constantly revisited to stay aligned with the project’s priorities and the client’s goals.
At NextAge, planning starts before the first sprint, through a structured Ideation & Blueprint process that aligns scope, resources, and business expectations before a single line of code is written. Projects that start with this alignment experience less rework and hit deadlines more consistently.
2. Requirements Analysis
This stage involves an in-depth analysis to identify and prioritize the desired features. Techniques like interviews, workshops, and user journey mapping are used to capture relevant requirements from stakeholders and end users, in other words, the features, characteristics, and needs the software must have. This makes it possible to understand the problem and prioritize features based on business impact.
- Techniques used: Interviews, workshops, user journey mapping.
- Expected outcome: Clear, dynamic documentation, such as user stories or visual models, enabling continuous alignment.
In agile development, requirements can evolve over time, keeping the final product in sync with user expectations and business needs. For example, NextAge’s expertise in Ideation & Blueprint ensures every requirement is captured precisely, enabling deliverables aligned with strategic goals.
At NextAge, requirements analysis is led by professionals experienced across multiple industries, meaning requirement patterns that would cause problems later are caught before they turn into code. Our analysts and tech leads join the client’s allocated squad from this phase onward, ensuring the backlog reflects the business, not just the technology.
3. Design
With requirements clearly defined, it’s time to design the system. During this stage, the team develops the software architecture, plans the user interface (focused on usability and user experience), and structures the system’s components.
Agile design stands out for being adaptable, allowing for adjustments as needed in future iterations. Building prototypes, for example, is a common practice for validating ideas before moving into coding.
At NextAge, allocated squads include UX/UI professionals embedded in the development team, not as a separate stage, but as part of the same cycle. This eliminates the back-and-forth between design and development that slows down projects where the two disciplines work in silos.
4. Development (Implementation)
During the implementation stage, developers work on the features prioritized for the current iteration. Common practices include:
- Pair programming: Two developers working together on the same code.
- Test-driven development (TDD): Ensuring quality from the outset.
- Continuous delivery: Frequent increments for client validation.
NextAge developers, experienced in technologies like Angular, Java, React, and Python, ensure clean, efficient code aligned with industry best practices.
At NextAge, our developers, with expertise in Angular, Java, React, Python, Node.js, and other technologies, join client projects with TDD and continuous delivery practices already in place. There’s no methodology adjustment period: the squad hits the ground running. That shortens, by weeks, the time between contract kickoff and the first delivery of real value.
5. Testing
Testing is essential to validating software quality. In the agile cycle, it happens continuously, catching and fixing errors before the software reaches the client, including:
- Unit tests: Validating individual functionalities.
- Integration tests: Verifying how modules interact with each other.
- Acceptance tests: Confirming that requirements have been met.
The agile approach minimizes errors and speeds up fixes, increasing software reliability. At NextAge, robust QA practices ensure failure-free deliveries.
At NextAge, QA isn’t a separate phase at the end of the project, it’s a responsibility distributed across the entire cycle. Our squads include Quality Assurance professionals working in parallel with development, catching failures before they become expensive technical debt to fix in production.
6. Review and Retrospective
At the end of each iteration, the team carries out two critical activities:
- Review: Presenting results to stakeholders and gathering feedback.
- Retrospective: Reflecting on the team’s working process, identifying improvements for the next iteration.
This stage reinforces two of agile development’s core pillars: adaptation and continuous learning.
At NextAge, stakeholder reviews are part of the contract. Our clients get real visibility into what was delivered each sprint, with productivity and quality metrics available. Transparency about project progress is one of the pillars of our Outsourcing 2.0 model.
7. Delivery (Deployment)
Once features are approved, the software is deployed to the production environment. In the agile model, depending on the project’s specific strategy, this can happen continuously or through scheduled releases. Points of attention include:
- Deployment strategy: Gradual or full rollout.
- Environment configuration: Ensuring security and performance.
- Initial monitoring: Identifying post-deployment issues.
Initial monitoring is important for catching any needed adjustments and ensuring a consistent experience for end users.
At NextAge, allocated squads include DevOps professionals when the project calls for it, making sure the CI/CD pipeline, environment configuration, and deployment strategy are part of the team’s work — not something left for the client to figure out after delivery.
8. Maintenance and Support
After delivery, the work continues. The maintenance phase is dedicated to:
- Bug fixes.
- Updates and enhancements: Based on user feedback.
- Continuous monitoring: Ensuring performance and security.
This agile maintenance keeps the product relevant and efficient over time.
At NextAge, the cycle doesn’t end at deployment. Managed Services (AMS) is a continuous support model where a multidisciplinary squad handles client requests, fixes, improvements, evolutions, and cloud monitoring, with flexible hour packages and none of the overhead of maintaining an in-house team sized for peak demand.
This 8-step cycle and agile frameworks: where Scrum, Kanban, and XP fit in
The 8 steps described above represent the generic cycle behind any agile approach, it isn’t a methodology of its own, it’s the common flow that Scrum, Kanban, XP, and other frameworks organize in different ways. It’s worth understanding the difference, since these terms are often used as synonyms when they aren’t:
- Scrum: organizes the cycle into fixed-length sprints (typically 1 to 4 weeks), with defined roles (Product Owner, Scrum Master, development team) and specific ceremonies (planning, daily standups, review, retrospective), which map directly onto steps 1, 6, and 7 described above. It’s the most widely adopted framework in the market.
- Kanban: doesn’t work in fixed sprints, but in continuous flow. The same 8 steps happen, but constantly, with a limit on work in progress (WIP) instead of closed cycles. It’s common in maintenance and support teams, like the Managed Services (AMS) model mentioned in step 8.
- XP (Extreme Programming): focuses specifically on steps 3, 4, and 5 (design, development, and testing), with stricter technical practices, like pair programming and TDD, mentioned in step 4 of this article, to maximize code quality.
In practice, most companies, including NextAge,don’t follow a “pure” framework. They combine elements of Scrum (ceremonies and roles) with Kanban practices (visual flow, WIP limits) and XP (technical quality), adapting to each project and client’s context.
Why outsource agile development instead of building it in-house?
Understanding the agile cycle is one thing. Having a team that executes it consistently, sprint after sprint, is another.
Building agile from scratch with an in-house team requires investment in training, cultural change, defining ceremonies, choosing tools, hiring professionals experienced in the methodology, and months of adjustment before the team operates at full speed. At companies where IT isn’t the core business, or where the internal team is already stretched thin with existing operations, that investment rarely pays off within the expected timeframe.
Outsourcing agile development to a partner that already operates within this cycle solves that problem differently:
- Real speed to start: a specialized external squad doesn’t need to learn agile, it hits the ground running. NextAge allocates squads that become operational within 2 weeks, with ceremonies, tools, and practices already in place.
- Tailored team composition: every project has different needs. Some need a Dev + QA + Tech Lead. Others need a full squad with a Scrum Master, UX/UI, and DevOps. With outsourcing, you build exactly what you need, without hiring roles that would sit idle during the wrong phases of the project.
- Scalability without bureaucracy: need to double the team mid-project? Scale down after a critical phase? With an allocation model, that happens without a hiring process, without additional payroll burden, and without severance costs. The team grows and shrinks with the project.
- Guaranteed seniority without hiring risk: finding senior developers who master agile practices, TDD, continuous delivery, code review, and pair programming takes months in today’s market. In an allocated squad, that seniority is already validated.
- Focus on what matters: with a partner handling the development cycle, your in-house team can focus on product strategy, business roadmap, and architectural decisions instead of running the development process at the operational level.
That doesn’t mean outsourcing is the right answer for every context. For core products with mature in-house teams, keeping development internal makes sense. But for new projects, capacity expansions, time-boxed innovation initiatives, or legacy system modernization, the speed and flexibility of a specialized external squad are rarely matched by direct hiring within the same timeframe.
Want a team that already practices this cycle in your projects?
The cycle described in this article isn’t theory for NextAge, it’s how our squads operate on client projects, from planning to maintenance. That’s more than 18 years and 600+ clients across 10 countries behind this experience.
If you have a project that needs a team now, or want to understand how a dedicated squad would fit your specific context:
Frequently Asked Questions
What’s the difference between Scrum and Kanban?
Scrum organizes work into fixed-length sprints (usually 1 to 4 weeks), with defined roles and specific planning and review ceremonies. Kanban works with continuous flow, without closed cycles, controlling the amount of work in progress through a visual board. Both organize the same 8-step cycle described in this article, just in different ways.
Is agile development the same thing as Scrum?
No. Scrum is one of the frameworks used to apply agile principles, but it’s not the only one. “Agile” refers to the set of values and principles defined in the Agile Manifesto, and Scrum, Kanban, XP, and others are specific ways of putting those principles into practice.
Agile or Waterfall: which should I choose for my project?
It depends on how certain you are about the requirements. If the project’s scope is well-defined and unlikely to change (e.g., regulatory systems with a closed specification), the Waterfall model can work. If there’s any expectation of requirements changing over the course of the project — the case for most software today — the agile model tends to reduce risk and deliver value sooner, since problems get caught with every iteration instead of only at the end of the project.
How long does a full agile development cycle take?
There’s no fixed duration for the full cycle, but each iteration (sprint) usually lasts 1 to 4 weeks. The full cycle described in this article (planning through maintenance) repeats with each iteration, incrementally, until the product reaches the desired maturity — and even after that, the maintenance stage continues on an ongoing basis.
Does my company need to hire a Scrum Master to work with agile?
Not necessarily, though it helps for teams following Scrum more strictly. Smaller squads or teams following a hybrid approach (blending Scrum, Kanban, and XP practices, as described in this article) often distribute that responsibility between the Tech Lead and the team, without a role dedicated exclusively to it.
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