Procedural charts are used to show ordered decision making or events. These can be used with temporal data and individual components can be represented by different shaped elements or text.
A flowchart is used to represent a sequence of steps or activities arranged in order. It is ofen used for manufacutring processes, algorithms, administrative or service processes. The flow chart distingishes data sources, processes, decisions and more.
A Gannt chart is used to outline project management goals and timelines. It is most often used to show anticipated timelines for projects.