A good test is to consider deleting one of the data values. If you did this, would the others make any sense? If they don’t, it’s a sure sign that you have an object that’s dying to be born. You’ll notice that we advocate creating a class here, not a simple record structure. We do this because using a class gives you the opportunity to make a nice perfume. You can now look for cases of feature envy, which will suggest behavior that can be moved into your new classes. We’ve often seen this as a powerful dynamic that creates useful classes and can remove a lot of duplication and accelerate
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