DSDM
The DSDM is derived from the linear Software Development Methodology (SDM) model, which originated in the 1990s. It was an answer to the problem that, in linear methods, the functionality to be developed is often available too late as a whole. If the functionality to be delivered can be divided into sub-functionalities, these sub-functionalities can be delivered separately. We call this incremental system development or step-by-step development. In the beginning you want to find out which functionality can be split off. This means that the first two phases from the waterfall approach are completed, but only when the partial functionalities are clear can these be developed step by step in parallel.
DSDM is more than just applying iterations ...
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