PERT, short for Project Evaluation and Review Technique, is a popular project management tool used to represent, schedule and coordinate tasks involved in a project. In a PERT chart, tasks are represented as a network of nodes. The direction of connectors among tasks indicate the sequence of tasks.
Data Flow Diagrams
Examples show you how to use Data flow diagram to visualize the data processing in business analysis field. A data flow diagram is strong in illustrating the relationship of processes, data stores and external entities in business information system.
Entity Relationship Diagram
Entity Relationship Diagram (ERD), a database design tool that provides graphical representation of database tables, their columns and inter-relationships. ERD is the most popular database design tool.