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Think of it like this, draw a box on a piece of paper and right "start" in it. Then what happens from there? What if the user clicks a button? Well lets say the clicks the maximize window button. Well what happens? Draw a line to another box with "Maximise window function" in it. Draw a line from start to the new box and write a little note beside that line "Clicked maximise window button." And you continue doing this for any function that you want to include. This is great for start a new program or debugging a program you have already wrote.
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∙ 11y ago
A DFD (Data Flow Diagram) model is used to show the flow of data within a system. To use it, you start by identifying the external entities interacting with the system, then define the processes that transform the data, and finally show the data stores where information is stored. This helps in understanding how data moves through the system and can be used for system analysis, design, and documentation.
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Which type of database model connects data in different files through the use of a key field?
The relational database model connects data through the use of a key field, which is called a primary key in one table and a foreign key in another table. This key field establishes a relationship between different tables by uniquely identifying records.
What Data model is said to be a semantic data model?
An Entity-Relationship (ER) model is commonly referred to as a semantic data model. It focuses on defining the entities, attributes of the entities, and the relationships between entities to capture the meaning of data in a domain. This model helps to visualize and understand the semantics of the data being represented.
What is the lowest data model?
The lowest data model is the physical data model. It represents how data is stored on a specific type of hardware and helps optimize storage and retrieval. It is the closest to the physical implementation in a database system.
Define data models and list different types of data models?
A data model is a collection of concepts that can be used to describe the structure of a database and provides the necessary means to achieve this abstraction whereas structure of a database means the data types,relationships and constraints that should hold on the data. Data model are divided into three different groups they are 1)object based logical model 2)record based logical models 3)physical models Types: Entity-Relationship (E-R) Data Model Object-Oriented Data Model Physical Data Model functional data model
What is the difference between a model-driven and data-driven DSS?
A model-driven DSS relies on mathematical or statistical models to analyze data and make predictions, while a data-driven DSS uses historical and real-time data to generate insights and support decision-making without relying heavily on predefined models. Model-driven DSS are more structured and use algorithms to process data, while data-driven DSS focus on exploring patterns and trends in data to inform decisions.
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What is logical dfd?
the dfd which independent view of the system is called logical dfd
DFD for library management?
i want dfd on library management i want dfd on library management
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DFD for inline tourism
DFD Hospital Management System?
Hospital dfd
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Where are DFD used?
DFD Stand for Data Flow Diagram.
What are the naming conventions in dfd?
All of the DFD should be named .All the name should be meaningful to add value to the dfd,s.
Dfd for airlines reservation system?
I have dfd for airlines reservation system. my email id is: nabanita.dumdum@gmail.com
Case study about dfd and their solution?
case study about dfd and their solution
How you design dfd for bank management system?
design dfd bank
