Direct answer
Rapid application development is an approach where working software is produced in short cycles and revised against feedback, instead of being specified in full before building starts. CodeDTX uses it where a decision depends on seeing something real, and where the cost of being wrong is lower than the cost of waiting.
Rapid application development
A delivery approach built on short iterations, working prototypes and continuous revision, rather than sequential analysis, specification and build. It trades some up-front certainty for earlier evidence about whether the thing is right.
When this is the right approach
It suits some problems and actively harms others. The distinction is worth being explicit about before starting.
A decision needs evidence
Something has to exist before anyone can judge whether it is worth building properly.
The requirement is still moving
Writing a full specification would fix decisions that are not ready to be fixed.
The blast radius is small
The system it touches can absorb being wrong without consequence to customers or money.
Not for regulated or safety-critical work
Where a mistake is expensive or irreversible, the up-front analysis is the cheaper path. We will say so.
What happens to the result
Rapid work becomes a liability when nobody decides what it is. Each build is designated either a prototype to be discarded once it has answered its question, or a foundation to be hardened. The decision is made when the work starts, not after it has quietly become production.
Frequently asked
This is the practice the AI work is built on
We still take this work on. If the system you are describing should also be making decisions on its own, start with the AI side.