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Data flow diagram (DFD) is a graphical representation method used to depict the flow, storage, processing of data in a system and the interaction between external entities. This article will systematically explain the components, types, application scenarios, drawing tutorials, etc. of data flow diagrams, and share multiple examples, hoping to help you understand data flow diagrams.

UML , or Unified Modeling Language , is a visual modeling language used for software system analysis and design. UML diagrams are mainly divided into structural behavior diagrams and dynamic behavior diagrams. This article will share the concepts, elements, and drawing tutorials of deployment diagrams in structural UML diagrams, and share application cases.

ER diagram is a powerful visualization tool for describing entities and their relationships. Whether building a new information system or improving an existing data model, ER diagram can help developers and related personnel clearly understand data requirements and structures. This article aims to introduce the basic concepts, drawing methods and user cases of ER diagram. Through this article, you can understand and master the basic skills of drawing ER diagram, laying a solid foundation for developing efficient and reliable applications.

Activity diagram is one of the diagrams in UML that describes the dynamic behavior of the system. It is mainly used to show the activities or actions of the classes involved in the behavior and describe the execution process of various activities in the system, including business processes, software operations or interactions between objects. The following will explain the UML activity diagram from three aspects: the concept and importance of activity diagram, the difference between activity diagram and flow chart, and the components of activity diagram.

EPC is an event-driven business process modeling method that graphically displays events, functions and their logical relationships in business processes. It is an important tool for enterprise management and information construction. Through the EPC model, enterprises can intuitively understand and analyze business processes, discover potential bottlenecks and problems, and then carry out targeted optimization and improvement. Mastering the method of using ProcessOn to draw EPC diagrams can help enterprises intuitively understand and optimize business processes, improve decision-making efficiency, and promote cross-departmental collaboration.

As Internet products become more and more abundant, companies begin to seize limited user resources, and user demands begin to become more and more precious. Since user experience is so important, today we will discuss how UX designers improve product user experience from the basic concepts of user experience, the five elements of user experience, and user experience chart tools .

UML class diagram graphically displays the classes in the system, their relationships, and the internal structure of the classes. These diagrams not only help developers understand the overall architecture of the system, but also promote communication and collaboration in teamwork, ensuring that all members have a common understanding of the design. This article will explain the concepts, rules, and drawing methods of class diagrams in detail, and share a large number of cases.

In today's rapidly changing business environment, companies must continuously optimize their internal processes to improve efficiency, reduce costs and increase customer satisfaction. Business Process Modeling Notation (BPMN) is a standardized graphical notation that helps companies to optimize their internal processes in different BPMN 2.0 is the latest version of BPMN, which has stronger expressiveness and flexibility, and provides a powerful tool for business process management. This article will use multiple BPMN templates from the ProcessOn template community to illustrate The concept, structure, symbol meaning and application scenarios of BPMN.

ER diagram is a graphical representation method for describing entities and their relationships . In the data-driven era, entity-relationship diagram (ER diagram) is a core tool for data modeling, which is very important for understanding, designing and Optimizing the database structure is crucial. This article will explain what an ER diagram is and how to use the ProcessOn tool to draw a professional ER diagram.

Project schedule management is a vital part of project management. It ensures that the project is completed on time and achieves the expected results within the budget. This article will introduce in detail how to manage the project schedule, including making plans, monitoring progress, responding to changes, and using Tools and techniques to optimize processes.