Identifying the attitude expressed in a document or group of sentences to obtain a general idea of their mood is one of the NLP use cases in the content marketing diagram. This can be useful in marketing to determine how people respond to various communication methods. For example, feedback from a chat system may be more negative than from an email system because email feedback may imply that the user is engaged and interested in your company. In contrast, chatbot feedback may attract quick questions or support requests. Audience Identification analyzes common keywords or themes to determine the characteristics of your audience. Grab a copy of EdrawMax today to add to your use case diagramming skills.