Software Renovation Revisited: From Stable Islands to Dynamic Networks

The Old Paradigm: Stability Through Isolation The motto "Never change a running system" was long considered an unshakeable paradigm in IT. In an era where software solutions were operated internally and relatively isolated, this approach seemed sensible. Once successfully implemented, software solutions often remained untouched for years. The concept of software renovation was largely unknown. Past: The 1980s and 1990s During this time, IT solutions were often operated internally: Characteristic Features: Part of closed networks, often isolated in intranets Minimal communication with the outside world "Selfcontained" solutions Less susceptible to external threats Security Landscape Then: Cyberattacks primarily focused on large organizations Threat landscape was limited SMEs felt relatively