The lifetimes of custom business systems seem to be getting shorter. One reason for this is the rapidly evolving technology world, which gives frequent new opportunities for business development. The decision to create a new system is often driven by limitations of an existing system that negatively affect or threaten a business’s growth. This is especially the case when competitors have already developed new technologies.
There are also cases when the decision to change an existing system is dictated only by technology trends. For example, if an existing system is based on the web services architecture, it may be rewritten to a more popular microservice architecture with a newer platform and better frameworks. Usually, such a decision would be influenced by non-functional requirements like improved performance, increased frequency and flexibility of releases, and reduced runtime errors.