Why is there no universal set of software techniques applicable to all software systems?

The reason there is no universal set of software techniques applicable to all software systems lies in the diverse nature of customer requirements and the various development methods employed in the software industry. Different customers have unique needs, which translates into a variety of functional and non-functional requirements, influencing how software is designed and built. For instance, a web application for an e-commerce platform will require different considerations compared to a mobile app for real-time data analysis.

Moreover, development methods, such as Agile, Waterfall, or DevOps, can dictate how teams approach software development, affecting project management, collaboration, and the techniques employed throughout the software lifecycle. Each approach has its own strengths and focuses, which may not be compatible with all projects. Therefore, trying to apply a single set of techniques universally would overlook the specific context, needs, and constraints inherent in different software projects.