Kanban was invented for Just-In-Time factories, where each product item is customized to meet demand, so fewer things can be predicted in advance, thus making W

Kanban was invented for Just-In-Time factories, where each product item is customized to meet demand, so fewer things can be predicted in advance, thus making Waterfall unsuitable. Kanban allows to achieve both the flexibility of customization and cost effectiveness of mass production. In software development, incoming requests are broken down into small manageable tasks, which are familiar enough for developers to estimate reliably. Then this continuous stream of small tickets is executed continuously (Kanban) or in sprints (SCRUM). For example, request to add feature X can be broken down into «Make UI for feature X» and «Make backend for feature X». If they are still large, they can be broken further, for example «Make a CRUD for feature X.y», «Make a SQL table for X.y with migration script», and so on.