On a project without a common language, developers have to translate for domain experts. Domain experts translate between developers and still other domain experts. Developers even translate for each other. Translation muddles model concepts, which leads to destructive refactoring of code. The indirectness of communication conceals the formation of schisms—different team members use terms differently but don’t realize it. This leads to unreliable software that doesn’t fit together (see Chapter 14). The effort of translation prevents the interplay of knowledge and ideas that lead to deep model
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