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What is the difference between entity relationship diagram and data flow diagram?
DFD basically describe the flow of data, means how data can be flow in a system where as ERD defines the relationship between entities. -> There is no such constrainst like cardinality,participation in dfd as compare to Erd.. ->In DFD, we show the storage of file using Parallel line where as ERD is just a conceptual represantation of data... ATUL
Where are DFD used?
Data flow diagrams (DFDs) are primarily used in software development and systems analysis to visualize and document the flow of data within a system. They help in understanding the processes, data stores, and data flow within a system, making it easier to analyze, design, and communicate system requirements and functionality. DFDs are commonly used in the early stages of system development to facilitate discussion between stakeholders and ensure a common understanding of the system.
Why is the high latitude interior of the continent dominated by Dfc and Dfd climates?
The high latitude interior of continents is dominated by Dfc (subarctic) and Dfd (subarctic with severe winters) climates primarily due to their geographic location, which results in significant temperature variations and limited sunlight during winter months. These areas experience long, cold winters and short, cool summers, influenced by their distance from the moderating effects of oceans. Additionally, the continentality effect leads to lower humidity and precipitation, further solidifying the dominance of these colder climate types in such regions.
Definition of readers opinion in a newspaper?
A reader's opinion in a newspaper is a written expression of an individual's perspective, belief, or feedback on a particular issue, event, or topic. It provides readers with the opportunity to share their views and engage in discussions with others in the community. Reader opinions are typically featured in opinion columns, letters to the editor, or online forums.
Which Koppen's letter represent coldest temperature in US?
In the Köppen climate classification system, the letter "D" represents cold climates, specifically the continental climates characterized by significant seasonal temperature variations. Within the "D" category, "Dfc" and "Dfd" denote subarctic climates, which can experience some of the coldest temperatures in the contiguous United States, particularly in areas like northern Minnesota and parts of Alaska. These regions can see winter temperatures drop significantly, often below freezing for extended periods.
What is the conext diagram for the school?
DFD diagram stands for Data flow diagram . DFD are also known as Context diagram.
Design a DFD diagram for a library system?
Design a DFD diagram for a library system
What is a level 0 diagram?
A system diagram is known as a first level DFD (Level 0 DFD) A data flow diagram (DFD) is a graphical representation of the "flow" of data through an information system.
Data flow diagram for online banking system?
E Rmodel for banking system means the working process of the bank
How you make a dfd for online shopping?
DFD for online shopping refers to a data flow diagram. Such a diagram offers information pertaining to the activity between customers, sellers and visitors to an online store.
DFD diagram of hotel management?
visual basic programing
What will be data flow diagram for KBC game?
dfd for kbc
What is physical dfd?
A Physical Data Flow Diagram is a diagram showing howparticular functions are performed within the data flow as opposed to a Logical DFD which only shows what functions are performed.
Can you draw dfd without database?
DFD means data flow diagram and database is an integral part of the DFD. It is not possible to draw a DFD without a database, since there has to be a place for data storage in the overall business process flow.
Data flow diagram for existing browser?
i cant explain this dfd
Difference between dfd and er diagram?
actually dfd is used to define how data flow from one process to another process where as er diagram is used to define relation between different entities.
Draw a e-r diagram of payroll management?
DFD diagram of company payroll system.
