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In software development, attention tends to focus on the analysis, design, and implementation phases. These are generally considered the most critical and costly stages, where budget overruns can significantly impact the sustainability of an initiative.Throughout an application’s lifecycle, these activities account for far less of the overall cost than many assume. The most significant expense is maintenance, which, according to various studies, can represent up to 65% of the total software cost. This completely changes the perspective: the challenge is not simply building the system but ensuring that it can evolve without compromising its sustainability.Key Points: <ul><li>&#8203;Maintenance is the most expensive part of the software lifecycle, and a significant portion of these costs depends on how and when testing is performed during development.</li><li>Test-Driven Development (TDD) was created to overcome this limitation by moving testing to the beginning of the development cycle and turning tests into a guide for development.</li><li>The benefits extend across multiple levels: greater control and reduced costs for businesses, higher code quality, and simpler software design for developers.</li></ul>

Test-Driven Development to Improve Software Quality, Costs, and Sustainability

Artificial intelligence does not reduce the importance of software testing; it actually reinforces it. What changes is the way software is validated and governed: AI-based applications introduce new complexities that push testing beyond simple functional verification, opening challenges that deserve careful analysis.

Software testing: how it changes in the era of AI

According to the State of API Security Report by Salt Security, <a href="https://www.securitymagazine.com/articles/101421-99-of-organizations-faced-api-security-issues-within-past-12-months" target="_blank" rel="noopener noreferrer">99% of companies</a> have experienced at least one API security issue in the past 12 months, and 55% have delayed the release of new applications due to concerns related to their exposure. These figures clearly show why protecting application interfaces has become a systemic challenge, capable of influencing business decisions.&#8203;In this article, we take an in-depth look at API Security: what it is, why it has become so central to modern cybersecurity strategies, what the main threats are, and, most importantly, which practices to adopt to fully leverage the benefits of APIs while mitigating their risks.&#8203;

A guide to API Security, from threats to a winning strategy

In recent years, the digital payments sector has seen the rise of a highly innovative segment: Buy Now Pay Later (BNPL). Conceived as a leaner and more flexible alternative to traditional consumer credit, this payment method quickly gained the interest of consumers, businesses, and regulators.&#8203;

Buy Now Pay Later: the impact of CCD II and how to adapt digital platforms

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Transform processes and performance with tailor-made software.At Kirey, we design and implement comprehensive, integrated, and customized applications to connect systems, optimize workflows, and support the evolution of business processes. Discover our solutions. <a href="https://www.kireygroup.com/en/contact">&#8203;</a>

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A complete, modular, and flexible suite for application development and administrative and financial management in the Welfare and Social Security sector.