publish time: 2020-10-12
This is an E-R diagram (ERD) example for a hospital with a set of patients and a set of medical doctors. Each patient is associated with a log of the various tests and examinations conducted.
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A decomposition structure diagram shows a complex process, organization, data subject area, or another type of abject broken down into lower level, more detailed components. For example, decomposition structure diagrams may represent the organizational structure or functional decomposition into processes. As the image suggests, decomposition structure diagrams can be broken down into sub-functions. For instance, a log-in function may be broken down into sub-functions called to get a user ID, get a User password, validate user password, check user permissions, display user home screen, display error screens, etc. Use EdrawMax or EdrawMax Online’s predefined templates to create highly customizable decomposition structure diagrams for your project.
This is a basic database management system (DBMS) diagram, which is a software package designed to define, manipulate, retrieve and manage data in a database. A database management system, often known as a DBMS, is essentially a computerized data-keeping system. Users of the system are given the ability to conduct a variety of actions on it, such as manipulating the data in the database or managing the database structure itself.