Description: The Entity-Attribute-Value (EAV) model is a data modeling approach that allows for flexible and adaptable representation of information. Unlike traditional data models that use a rigid, predefined schema, EAV enables data to be stored in a more dynamic format, where entities can have attributes that vary in type and quantity. This model is particularly useful in situations where data is heterogeneous and does not easily fit into a fixed schema, such as in various applications including those dealing with Big Data. In EAV, each entity is described by a set of attribute-value pairs, making it easy to include new attributes without needing to modify the database structure. This flexibility is key in data visualization, as it allows analysts and data scientists to explore and represent information in various ways, adapting to the specific needs of each project. EAV is especially valuable in contexts where data variability is high, such as in medical information management, where different entities may have different sets of attributes relevant to their respective situations.
