A logical diagram is a graphical representation of a system, process or concept that depicts the relationships between its various components. Synonyms for logical diagram include flowchart, block diagram, process diagram, system diagram, network diagram, data flow diagram and concept map. A flowchart is a visual representation that illustrates the flow of a process, whereas a block diagram shows the components and their interconnections. A process diagram highlights the steps involved in a process, while a system diagram illustrates the structure of a system. A network diagram shows how devices are connected, a data flow diagram illustrates the path of data through a system, and a concept map visually depicts the relationships between concepts.