The term "vivo500" functions as a proper noun. As a specific identifier, it names a particular entity, such as a product model, a research project, a technical standard, or a branded component. This classification is primary because the term designates a unique item rather than a general class of objects.
While it can be used attributivelyacting as an adjective to modify another noun (e.g., "the vivo500 processor")its fundamental grammatical role is that of a noun. This is because it is a self-contained name. In linguistic terms, this is known as a noun adjunct, where a noun is used to describe another noun. However, for the purpose of establishing a main point in an article, recognizing its core identity as a proper noun is essential. The article's focus will be on the entity named vivo500, treating it as the subject or object of discussion.
Therefore, all grammatical and syntactical constructions within the article should proceed from the determination that "vivo500" is a proper noun. This ensures the article treats the term as the central subject of analysis, rather than as a mere descriptor. Sentences will be structured around what the vivo500 is or what it does, reinforcing its role as the primary topic.