Agile or Waterfall? What is best for your Business?

Navdeep Garg
Agile vs Waterfall

Introduction

One of the first and foremost decisions that are made by any company before the implementation of a project is “Which development methodology should be used?” 

The two most basic and popular methodologies are Agile and Waterfall. In this piece of writing, I have discussed my thoughts on the advantages and limitations of each.

What is Agile?

Agile methodology is one of the project management frameworks which is used by teams to iteratively and incrementally complete tasks and projects. Agile has increasingly become our methodology of choice for the vast majority of projects. We now heavily favour Agile to successfully cope with loosely defined or constantly changing requirements or critical time to market demands.

Agile methodology is a convention that helps uninterrupted iteration of development and testing in the software development process. In the Agile model, development and testing activities coexist and this allows more communication between customers, developers, managers, and testers. It was found that over 90% of the organizations started using Agile methodology for bringing their business success on track. 

Advantages of the Agile Model

  • It is a client-focused process where the client is frequently involved in every stage
  • Provides a better result from the development projects
  • Assures the quality of the development
  • The client and team are always updated about the timeline of the project which reduces the risk in the development process
  • Bugs can always be fixed in the previous phase

Limitations of the Agile Model

  • It is not used for the development of small projects
  • Important decisions are only taken by the experts
  • The higher cost of implementation
  • The project can easily go off track if the project manager is not clear about the outcomes he/she wants

What is the Waterfall methodology?

The Waterfall approach is a well-defined sequential design process that is used to deliver a product on time, on budget, and with the required level of quality. This means that as each of the 6 stages (Requirement Gathering and documentation, design, programming, testing, implementation, and maintenance) are completed, the programmers move on to the development phase of the project.

In this process, once a step has been completed, programmers can’t go back to a previous step – not without scratching the whole project and starting from the beginning. At this phase there is no room for change or error, so a project outcome and an extensive plan must be set in the beginning and then followed carefully.

Advantages of the Waterfall Model

  • It is easy to follow and can be implemented for any size of the project. It is a linear model with a disciplined approach
  • Suitable for smaller size projects where requirements are easily understandable
  • Helps in the easy and quick delivery of the project
  • The process and results in the waterfall model are well documented
  • Easily compliant method for shifting teams
  • Favorable to manage dependencies

Limitations of the Waterfall Model

  • It is not suitable for a large size project
  • A less effective method if requirements are not clear at the beginning
  • Changes are not possible to implement in the previous phase
  • Once the testing process starts after the completion of the development process, it is impossible to fix bugs found later in the development phase

Key Differences

AGILE METHODOLOGY WATERFALL METHODOLOGY
  • Agile is known for its flexibility
  • The waterfall is a structured software development methodology
  • Agile chases an incremental approach
  • The waterfall is a sequential design process
  • Agile percolates testing concurrently with software development 
  • Waterfall testing comes after the “Build” phase
  • Agile allows changes according to the requirements.
  • Waterfall has no scope of changes once the development phase has started

Frequently Asked Questions

Our testing processes place a high priority on data security. To ensure the security of sensitive information, we adhere to a number of protocols, including the anonymization, encryption, and control of access to data. During testing, we use secure environments and data that mimic real-world scenarios without exposing sensitive information. We adhere to best practices for data protection and comply with industry standards and regulations including GDPR and HIPAA. As part of our security testing process, we employ a variety of tools and methodologies to identify and rectify security vulnerabilities.

To ensure the quality and reliability of your software solutions, we employ a comprehensive range of testing methodologies and cutting-edge tools. Our testing approach includes:

  • Manual Testing: We use structured test cases to identify usability, functionality, and design issues.
  • Automated Testing: Automated testing streamlines processes, improves efficiency, and ensures consistency.
  • Unit Testing: JUnit, NUnit, and PyUnit are unit testing frameworks we use to validate the functionality of code units.
  • Integration Testing: We verify the seamless interaction of various system components using tools such as Selenium, Appium, and Postman.
  • Performance Testing: To assess system responsiveness and scalability, we employ tools like JMeter, LoadRunner, and Gatling.
  • Security Testing: Our security testing includes vulnerability assessments and penetration testing using tools like OWASP ZAP and Nessus.
  • User Acceptance Testing (UAT): We collaborate closely with your team to ensure that the software aligns with your end-users’ expectations.

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We adhere rigorously to project timelines and deadlines at our software development company. To ensure on-time delivery, we use meticulous project management, agile methodologies, and clear communication. Depending on the scope, complexity, and your specific requirements, we conduct a comprehensive analysis and planning phase. Our project managers then track progress continuously using agile frameworks. We maintain regular status updates and transparent communication channels. Whenever changes need to be made, we let you know promptly while keeping you updated.

We specialize in a wide range of technologies and programming languages, including but not limited to Blockchain, .Net, JavaScript, C#, Ruby, PHP, Wordpress. Our expertise covers web development frameworks like React, Angular, and Vue.js, as well as mobile app development for React Native, Flutter, iOS and Android. We also have experience with cloud platforms such as AWS, Azure, and Google Cloud, and are proficient in database systems like MySQL, PostgreSQL, MongoDB, and more. Additionally, we are well-versed in DevOps tools and practices to ensure seamless deployment and ongoing maintenance of the software we develop.

Our company offers a wide range of development services, including:

  • Web Development: We specialize in creating custom websites, web applications, e-commerce platforms, and content management systems.
  • Mobile App Development: We develop mobile apps for iOS and Android platforms, from concept to deployment.
  • Software Development: Our software development services cover desktop applications, business software, and cloud-based solutions.
  • Blockchain Development: We have expertise in blockchain technology, including smart contract development and decentralized application (DApp) creation.
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Navdeep Garg
Article written by

Navdeep Garg

I'm founder and CEO of Revinfotech Inc. I traits in leadership and brilliant practitioner in the Financial Services and FinTech. I helped ban in connecting to the FinTech ecosystem through payment acceptance in blockchain as a service and even help i... read more

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