"Discreet development" typically refers to a process or approach in various fields (such as software development, urban planning, or product design) that emphasizes subtlety, low visibility, or minimal disruption. In urban development, for instance, it might involve projects that blend into the existing environment without altering its character significantly. In software or product development, it might refer to behind-the-scenes enhancements or incremental improvements that are not immediately apparent to users but enhance functionality or performance.
If "discreet development" has a specific context or meaning you're referring to, please provide more details!