Given these business rules, create the Entity Relationship Diagram, include relationships and cardinalities.   A bookstore is modeling its data. On one part, we have the READERS. Readers have a registration ID, name composed by first name and last name, mailing address and list of topics of interest (cooking, fiction, etc). The books available for readers will be stored with title, year of publication, isbn code and a list of topics that the book is tagged for. Authors are also to be stored with an authorID, name composed by first name, middle name and last name, mailing address and date of birth. One book can have multiple authors, but must have at least one. One author can write multiple books, one book or even be registered as an author without authoring any books. A customer can own multiple books and only starts being a costumer after buying her/his first book.   I need help understanding how this works and how I put it together

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Fundamentals of Managing Data

Data management is creating, organizing, storing and managing the data collected and created by any organization.Effective data management is a crucial part of today's world. Data management provides analytical information on the vast amount of data collected from business applications daily, which helps make critical business decisions and plan and bring out the best strategies.