It’s worth highlighting that “self-contained” doesn’t mean “isolated”. It’s desirable for a module to collaborate with other modules, but the communication should represent business processes interacting with each other (or a process with subprocesses).
СюжетРакетные удары по Украине:
，详情可参考体育直播
Фото: Robert Lingley，更多细节参见体育直播
Фото: Thilina Kaluthotage / Reuters