Divert the Flow
Martin Fowler
JANUARY 20, 2022
Yesterday Ian Cartwright, Rob Horn, and James Lewis. described the Critical Aggregator and how it can metastasize into an invasive form. When a legacy system has such an Invasive Critical Aggregator it's often best, if a little counter-intuitive, to Divert the Flow of data by building a new critical aggregator first. Once this is done, we have far more freedom to change or relocate the various upstream data sources.
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