Software validation and verification are two critical processes in software development used to ensure the quality, reliability, and functionality of applications and computer systems. These processes are fundamental to ensuring that software meets requirements and is free of errors before it is released to the market or implemented in operational environments.

Software Validation:

Software validation focuses on confirming that the software meets the needs and expectations of the end-user, meaning it performs its intended functions accurately and completely. It involves ensuring that the software satisfies the functional and non-functional requirements specified during the planning and design phases of the project. Activities in software validation include:

  • Functional Testing: Comprehensive testing is conducted to verify that the software performs its functions according to specified requirements. This includes functionality, usability, and performance testing.
  • Requirements Validation: It verifies that the software requirements are clear, complete, and aligned with user needs.
  • Regulatory Compliance Validation: Ensures that the software complies with industry-specific standards and regulations, such as ISO standards, HIPAA, PCI DSS, among others.
  • Documentation Validation: Verifies that software documentation, such as user manuals and technical documentation, is accurate and up-to-date.


Software Verification:

Software verification focuses on reviewing and evaluating the software code, architecture, and documentation to identify errors, inconsistencies, or deviations from programming standards. This process is centered on the software development phase and is carried out before validation. Activities in software verification include:

  • Code Review: Developers and evaluators review the source code to ensure it complies with coding guidelines, is readable, and follows best practices.
  • Unit Testing: Tests are conducted at the level of individual modules or code units to identify errors in specific functions or components.
  • Integration Testing: Evaluates how different modules or components interact with each other to ensure proper integration.
  • Static Analysis: Static analysis software is used to search for potential issues in the code without executing the program.
  • Design Verification: The architecture and design of the software are reviewed to ensure they meet requirements and are well-structured.

The combination of software validation and verification is essential to ensure that a software product is robust, functions correctly, and is secure before implementation or release. These processes help reduce costs and risks associated with software issues in production environments and maintain end-user satisfaction.

At SQS we have collaborated with numerous leading companies in various sectors, such as the healthcare industry (pharmacy, medical devices, health mobile applications, etc.) and the railway sector. Our services have contributed to ensuring the quality and success of their software products. We become your strategic partner for software validation and verification, providing reliable and effective solutions that meet the highest quality and security standards in the software industry.