Contents
- 🎵 Origins & History
- ⚙️ How It Works
- 📊 Key Facts & Numbers
- 👥 Key People & Organizations
- 🌍 Cultural Impact & Influence
- ⚡ Current State & Latest Developments
- 🤔 Controversies & Debates
- 🔮 Future Outlook & Predictions
- 💡 Practical Applications
- 📚 Related Topics & Deeper Reading
- Frequently Asked Questions
- Related Topics
Overview
External validation is a critical component of software development that involves evaluating a product against its intended purpose, user needs, and market requirements. It is a process of checking that a software system meets specifications and requirements, ensuring it fulfills its intended purpose and meets the needs of its users. External validation is often referred to as software quality control and is the responsibility of software testers as part of the software development lifecycle. The process involves verifying that the software achieves its goals without any bugs or gaps, and validating that it meets the high-level requirements and user expectations. With the rise of agile development and DevOps, external validation has become an essential practice in ensuring the delivery of high-quality software products that meet the evolving needs of users and the market. According to the World Health Organization, software validation is critical in the development of healthcare software, where the consequences of errors can be severe. The National Institute of Standards and Technology also emphasizes the importance of software validation in ensuring the reliability and security of software systems.
🎵 Origins & History
External validation has its roots in the early days of software development, where IBM and other pioneering companies recognized the need for a systematic approach to ensuring software quality. The concept of external validation gained prominence in the 1980s with the introduction of the ISO 9000 standard, which emphasized the importance of quality control in software development. Today, external validation is a critical component of software development methodologies such as Scrum and Kanban. For instance, Google uses external validation to ensure the quality of its software products, including Google Chrome and Google Search.
⚙️ How It Works
The external validation process involves a series of activities, including requirements gathering, design validation, and testing. It requires close collaboration between software developers, testers, and stakeholders to ensure that the software meets the intended purpose and user needs. The process involves verifying that the software achieves its goals without any bugs or gaps, and validating that it meets the high-level requirements and user expectations. Tools such as Jira and Trello are commonly used to facilitate external validation. For example, Microsoft uses Azure DevOps to manage its software development and validation processes.
📊 Key Facts & Numbers
Key facts and numbers highlight the importance of external validation in software development. According to a study by the Standish Group, software projects that undergo external validation are more likely to succeed, with a success rate of 71% compared to 35% for projects that do not undergo external validation. The study also found that external validation can reduce software development costs by up to 30%. Furthermore, a survey by Gartner found that 75% of organizations consider external validation to be a critical factor in software development. The Food and Drug Administration also requires software validation for medical devices, highlighting the importance of external validation in the healthcare industry.
👥 Key People & Organizations
Key people and organizations have contributed to the development and promotion of external validation in software development. Fred Brooks, a renowned software engineer, emphasized the importance of external validation in his book The Mythical Man-Month. The IEEE and the ACM are also prominent organizations that have published standards and guidelines for software validation. For instance, the IEEE Std 1012 standard provides a framework for software validation. Additionally, ThoughtWorks and Red Hat are companies that have developed tools and methodologies for external validation, such as Jenkins and GitLab.
🌍 Cultural Impact & Influence
External validation has had a significant cultural impact and influence on the software development industry. It has led to the development of new methodologies and tools, such as test-driven development and behavior-driven development. The practice has also influenced the way software developers work, with a greater emphasis on collaboration and communication. According to a report by Forrester, the adoption of external validation has led to a 25% increase in software development productivity. The Amazon Web Services platform also provides tools and services for external validation, such as AWS CodePipeline and AWS CodeBuild.
⚡ Current State & Latest Developments
The current state of external validation is characterized by a growing recognition of its importance in software development. With the rise of artificial intelligence and machine learning, external validation is becoming increasingly critical in ensuring that software systems are reliable, secure, and meet user needs. The National Science Foundation has also launched initiatives to promote software validation and verification in the development of AI and ML systems. For example, the NSF has funded research projects on software validation for autonomous vehicles and healthcare systems.
🤔 Controversies & Debates
Controversies and debates surrounding external validation include the challenge of balancing the need for quality control with the pressure to deliver software products quickly and at a low cost. Some argue that external validation can be time-consuming and expensive, while others argue that it is essential for ensuring software quality. The Agile Manifesto emphasizes the importance of responding to change over following a plan, which can sometimes be at odds with the principles of external validation. However, proponents of external validation argue that it can actually improve the overall efficiency and effectiveness of software development, as seen in the success of companies like Salesforce and Atlassian.
🔮 Future Outlook & Predictions
The future outlook for external validation is promising, with a growing recognition of its importance in software development. As software systems become increasingly complex and critical to our daily lives, the need for external validation will only continue to grow. The development of new tools and methodologies, such as continuous integration and continuous deployment, will also support the practice of external validation. According to a report by MarketsandMarkets, the software validation market is expected to grow from $1.4 billion in 2020 to $3.4 billion by 2025, at a Compound Annual Growth Rate (CAGR) of 14.5% during the forecast period.
💡 Practical Applications
Practical applications of external validation include its use in a wide range of industries, from healthcare to finance. The practice is essential for ensuring that software systems are reliable, secure, and meet user needs. Companies such as PayPal and Uber use external validation to ensure the quality of their software products. For example, PayPal uses external validation to ensure the security and reliability of its payment processing systems. Additionally, Uber uses external validation to ensure the quality and safety of its ride-hailing services.
Key Facts
- Year
- 1980
- Origin
- Software Development
- Category
- prevention
- Type
- concept
Frequently Asked Questions
What is external validation in software development?
External validation is the process of evaluating a software product against its intended purpose, user needs, and market requirements to ensure it meets the required standards and quality. According to the IEEE, external validation is a critical component of software development. For example, Google uses external validation to ensure the quality of its software products, including Google Chrome and Google Search.
Why is external validation important in software development?
External validation is important because it ensures that software systems are reliable, secure, and meet user needs. It helps to identify and fix defects early in the development process, reducing the risk of costly rework and improving overall software quality. The World Health Organization also emphasizes the importance of software validation in the development of healthcare software. For instance, PayPal uses external validation to ensure the security and reliability of its payment processing systems.
How does external validation differ from internal validation?
External validation involves evaluating a software product against its intended purpose, user needs, and market requirements, whereas internal validation involves evaluating the software against its internal requirements and specifications. Both types of validation are important, but they serve different purposes. According to the National Institute of Standards and Technology, internal validation is critical for ensuring the reliability and security of software systems, while external validation is essential for ensuring that software systems meet user needs and market requirements.
What are some common challenges in implementing external validation?
Common challenges include the need for significant resources and time, the difficulty of defining and measuring user needs and market requirements, and the challenge of balancing the need for quality control with the pressure to deliver software products quickly and at a low cost. However, companies like Salesforce and Atlassian have successfully implemented external validation, resulting in improved software quality and customer satisfaction.
How can external validation be applied in agile development methodologies?
External validation can be applied in agile development methodologies by incorporating it into the iterative development process. This can involve conducting external validation at the end of each iteration or sprint, and using the results to inform and improve the development process. For example, ThoughtWorks uses external validation to ensure the quality of its software products, and has developed tools and methodologies to support agile development and external validation.
What are some best practices for implementing external validation?
Best practices include defining clear requirements and specifications, involving stakeholders and users in the validation process, using automated testing tools and techniques, and continuously monitoring and improving the validation process. According to the IEEE, best practices for software validation include using a risk-based approach, defining clear validation criteria, and using independent validation teams.
How can external validation be used to improve software quality and reliability?
External validation can be used to improve software quality and reliability by identifying and fixing defects early in the development process, reducing the risk of costly rework, and improving overall software quality. It can also help to ensure that software systems meet user needs and market requirements, and are reliable, secure, and performant. For instance, Microsoft uses external validation to ensure the quality and reliability of its software products, including Windows and Office.