Definition: The process of sorting things with similar qualities or characteristics.
Also referenced as: Classify (verb) Classified (adjective) Classifying (adjective) Classifications (noun) Classifies (verb)
Related to: Ambiguous, Architect, Arrange, Category, Complex, Define, Exact, Facet, Label, List, Order, Organize, Relationship, Rules, Sitemap, Sort, Structure, Taxonomy, Term
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When you set out to arrange something, how do you decide where the pieces go? Is it based on what looks right to you, what you believe goes together, or what someone told you to do? Or maybe you let gravity or the alphabet determine the order?
To effectively arrange anything, we have to choose methods for organizing and classifying content in ways that convey the intended information to our intended users.
Structural methods for organization and classification are called taxonomy.
Common examples of taxonomies include:
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Sorting is the act of arranging content according to established rules. The act of deciding how to sort something within a taxonomy is called classification.
If you have a large pile of things, it may take a lot of time to sort through them. But sorting isn’t the hard part. Classification is.
Think about sorting a bag of groceries into a pre-arranged pantry. Everything has a place. You’re simply following the plan. Easy, right?
Now unload that same bag into a kitchen without rules for where things go. How much longer would it take you? How much more frustrating a task would it be? How much variation would you get when the next person unloads groceries?
Sorting is easy when clear rules are in place. But without those rules, assumptions take over and things end up in places where they can be harder to find.
The most challenging part of classification is working with other people to agree on a set of rules.
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Postal codes are what we call an exact classification. We can generally rely on the codes to hold steady. If the postal code is 10012, the building is in Manhattan. There’s nothing to argue about. It just is.
Ambiguous classifications require more thought to decide where something goes. The more ambiguous something is, the more it can be argued about.
Movie genres like Comedy and Drama may seem exact. But if you put three movie reviewers in a room and ask them to classify a dark comedy into one of those two genres, they may challenge each other.
Ambiguity and exactness relate to context as well.
For example, in editing this book, Nicole suggested I use the term “Postal code” instead of “Zip code” in the example above. Both would have expressed the point, but one is more exact for our context, which includes readers outside of the United States.
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The more ambiguous you are, the more likely it is that people will have trouble using your taxonomy to find and classify things.
For every ambiguous rule of classification you use or label you hide behind, you’ll have to communicate your intent that much more clearly.
For example, what if I had organized the lexicon in the back of this book by chapter, instead of alphabetically? This might be an interesting way of arranging things, but it would need to be explained, so you could find a term.
The more exact your taxonomy becomes, the less flexible it is. This isn’t always bad, but it can be. If you introduce something that doesn’t fit into a category things can get confusing.
Because there are many words for the same thing, exact classifications can slow us down. For example, I recently tried to buy some zucchini at a grocery store. But it wasn’t until the clerk in training found the code for “Squash, Green” that she could ring me up.
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A facet is a discrete piece of knowledge you can use to classify something. The more facets something has, the more ways it can be organized.
Using the record store as an example, the following facets are available for each record:
If a particular facet is interesting but the data to support it doesn’t exist or is hard to gather, it might not be the best plan to use that facet.
For example, finding out which instrument models were used on each album may be interesting, but it is also likely to be quite time-consuming to collect.
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Tomatoes are scientifically classified as a fruit. Some people know this and some don’t. The tomato is a great example of the vast disagreements humans have with established exact classifications.
Our mental models shape our behavior and how we relate to information.
In the case of the tomato, there are clearly differences between what science classifies as a fruit and what humans consider appropriate for fruit salad.
If you owned an online grocery service, would you dare to only list tomatoes as fruit?
Sure, you could avoid the fruit or vegetable debate entirely by classifying everything as “produce,” or you could list tomatoes in “fruit” and “vegetables.”
But what if I told you that squash, olives, cucumbers, avocados, eggplant, peppers, and okra are also fruits that are commonly mistaken as vegetables?
What do we even mean when we say “fruit” or “vegetable” in casual conversations? Classification systems can be unhelpful and indistinguishable when you’re sorting things for a particular context.
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Classifying a tomato as a vegetable says something about what you know about your customers and your grocery store. You would classify things differently if you were working on a textbook for horticulture students, right?
How you choose to classify and organize things reflects your intent, but it can also reflect your worldview, culture, experience, or privilege.
Those same choices affect how people using your taxonomy understand what you share with them.
Taxonomies serve as a set of instructions for people interacting with our work.
Taxonomy is one of the strongest tools of rhetoric we have. The key to strong rhetoric is using language, rules and structures that your audience can easily understand and use.
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Because your structure may change a hundred times before you finish making it, you can save time and frustration by thinking with boxes and arrows before making real changes. Boxes and arrows are easier to move around than the other materials we work with, so start there.
Try structuring the mess with common patterns of boxes and arrows as shown on the next page. Remember that you’ll probably need to combine more than one pattern to find a structure that works.