Tags are most commonly found on products sold by merchants, whether online or offline.

The products sold in the store will have a label, which is called a price tag or brand name; 99 yuan, 1099 yuan;

There will also be a label on the products on the e-commerce website , this is called classification; large red socks, quick-drying sports short-sleeves;

Groups of people or specific individuals will also be labeled, which is called personality or characteristics; such as introverts, extroverts, post-90s, Post-00;

Do we often use the label function, whether to evaluate people or things?

Commonly used software, such as APPs, have many labels, some of which may be explicit for users to choose, and some may be marked by the system based on algorithms.

So what exactly is the tag system?

A tag is a mark, a classification, or an attribute. Its function is to reclassify things or add descriptions.

The classification is divided into two categories, one is based on pre-set value classification, and the other allows users to customize the classification;

The description means that the label can be modified Description, for example, if the label is price, then I can put a specific value on it. This value may not necessarily be the value planned in advance, but may also be newly added.

So according to this simple division, tags can continue to be disassembled. Tags have their own classifications, their own values, and their own permissions.

Tags can be divided into body and description. The subject is a label in a narrow sense. For example, the label is red or green, which is the subject; and the description is a supplement to the subject. For example, the subject of the label is a book, and the description is economics, management, or psychology; or the subject is a promotional price, and the description is 9.9 yuan, 59.9 yuan, 90 yuan;

Permissions define the operation scope of the label and whether it can be maintained, that is, whether it is a fixed label or a dynamic label. Fixed means that once the label is marked, it cannot be modified manually. Background modification is allowed; dynamic tags mean that the tags can be modified manually or automatically adjusted according to certain rules.

If the main body and description are the content of the tag, then the scope of operation is the action of the tag, and classification is to classify tags according to different rules, that is, to group tags with the same characteristics together for convenience. Follow-up management and statistics.

In summary, a tag contains content, actions, and categories. The function of a tag is extended from simply being a mark to one that can be freely combined and managed in categories, that is, a tag can be changed from static to It is dynamic, from disorder to order. However, when we start using tags, it is easy to put multiple tags on one thing. Even with tag classification, it poses a great challenge to subsequent statistics and analysis. This is mainly reflected in: multiple tags for one thing, and multiple tags for different things. Tags, so how to search by tags, there will be crossover between tags and crossover between results. If it is relatively easy to query a single record, how to summarize statistics for so many records. These require further thinking and planning when designing labels.

Back to the original requirement, why do we use tags. It is for the purpose of personalized classification, labeling or description of things, that is, to flexibly configure new classifications. More specifically, it is to break the classification framework of inherent attributes or system default attributes, and use a new classification system to redefine or classify things. The mentioned tag is essentially an attribute, but the permissions of the attribute are given to the person who edits and uses the tag. Generally, for attributes, the user only has the right to edit the attribute value, but not the right to create the attribute, let alone the right to edit the attribute. classification; and tags allow users to have a God's perspective and design their own tags, tag values, and tag rules. Customization is the biggest feature of tags.

Another obvious feature of tags is that they emphasize equality rather than stratification or grading. Even if there are classifications or gradings in tags, tags of different types and tags of different levels should be formally equal, that is For users, a second-level label A and another first-level label B should be of the same level, and they can be presented together, not because the second-level label is not qualified to be displayed side by side with the first-level label.

A set of established label systems is multiple sets of attribute systems. It can copy multiple label systems, which expands the scope and boundaries of inherent attributes.

The higher-order tag system can be associated with other attributes and tags, and some rules can also be designed to match tags or verify tags.

When we want to use labels, it is not only for labeling, but also for a more comprehensive and subjective description of a thing.