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the bigger our software gets the harder it is actually to keep the overview and therefore it is crucial that we give our projects a good structure which usually means a separation of concerns we want to separate the ui the business logic and the data source so that we and our colleagues can easily and quickly understand the software that we can easily extend it with more features and that we can easily test it thatamp;#39;s where architectural design patterns come into play when it comes to android apps mvvm is the most popular one it stands for model view view model letamp;#39;s take a look at this recipe app the model represents the data source which is often represented by a repository that just collects all data in one central place that can be data from a database data from a remote api or just data from both the view model contains the business logic business logic is just the real program logic that isnamp;#39;t just updating a ui element so for example filtering a list or va
