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What are the different types of information represented in the ER diagram and the symbols used to represent them?
The different types of information represented in an ER diagram are entities (represented by rectangles), attributes (represented by ovals connected to entities), and relationships between entities (represented by diamonds). Entities are the objects or concepts about which data is stored, attributes are the properties of entities, and relationships define how entities are connected to each other.
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Purpose of Information flow diagram and Entity Relationship diagram.?
Information flow diagram is used to visually represent the flow of information within a system, showing how data is input, processed, and output. Entity Relationship diagram is a visual representation of the relationships between entities in a database, illustrating the structure of the database and how data is organized. Both diagrams help in understanding and designing systems more effectively.
Jeff pushed on the button for information Sentence diagram?
Sure! Here is a simplified sentence diagram for "Jeff pushed on the button for information": Subject: Jeff Action: pushed Object: button Prepositional phrase: for information
Uml diagrams for student information system?
A UML class diagram for a student information system would depict classes such as Student, Course, Enrollment, and Grade, showing their attributes and relationships. An activity diagram could illustrate the process of student registration, while a sequence diagram might show the flow of interactions between a student and the system during course enrollment. Additionally, a use case diagram could outline the different actions that various user roles can perform within the system.
What is meant by cladogram in information visualization?
A cladogram is a diagram used in cladistics which shows relations among organisms. A cladogram is not however an evolutionary tree because it does not show how ancestors are related to descendants or how much they have changed; many evolutionary trees can be inferred from a single cladogram. A cladogram uses lines that branch off in different directions ending at groups of organisms. There are many shapes of cladograms but they all have lines that branch off from other lines. The lines can be traced back to where they branch off. These branching off points represent a hypothetical ancestor (not an actual entity) which would have the combined traits of the lines above it. This hypothetical ancestor might then provide clues about what to look for in an actual evolutionary ancestor. Although traditionally such cladograms were generated largely on the basis of morphological characters, DNA and RNA sequencing data and computational phylogenetics are now very commonly used in the generation of cladograms.
What is the purpose of a web or cluster diagram A. to present information in a chronological order B. to chart main points and subtopics C. to make comparisons between two subjects D. to help organize?
B. A web or cluster diagram is used to chart main points and subtopics in a visual way, helping to organize and show relationships between different ideas.
How do we represent ammonia?
Ammonia is represented by its symbol NH(3). In drawing its diagram using VSEPR theory, we get a triangular pyramidal shape.
Symbols used in entity relationship diagram?
ER diagrams often use symbols to represent three different types of information. Boxes are commonly used to represent entities. Diamonds are normally used to represent relationships and ovals are used to represent attributes.
A graphical representation of a circuit that uses lines to represent wires and different symbols to represent components?
schematic diagram
What is a key or legend?
That is the part of a map that shows what is represented by each of the different colors, types of lines, etc. It also shows the scale between a certain distance on the map and the actual distance represented.
What is the best way to represent a force?
A force can be represented as a vector quantity, with magnitude and direction. This is typically done using a diagram that includes a labeled arrow pointing in the direction of the force with a specific length to represent the magnitude.
What are the different components and relationships represented in a 4way diagram?
A 4-way diagram represents four different components or variables and shows how they are related to each other. Each component is connected to the other three components in the diagram, illustrating the relationships between them.
In an electron dot diagram the symbol for an element is used to represent?
In an electron dot diagram, the symbol of an element is used to represent the nucleus and inner electrons of the atom. The dots surrounding the symbol represent the outermost electrons, or valence electrons, of the atom.
How E R diagram attributes are represented?
ER diagram stands for Entity relation diagram. There are two main components in a ER diagram one is the entity like (students) and their attributes like (name , rollno) and the relationship between different entitites.
How does the work from a PV diagram represent the energy transfer in a thermodynamic process?
The work represented on a PV diagram shows the energy transferred during a thermodynamic process. The area under the curve on the diagram represents the work done on or by the system. This helps to understand how energy is transferred and transformed in the process.
Difference between class diagram and object diagram with necessary diagram and figure?
Class diagram represent generalized view of system while object diagram represent view of a system at a particular instant.
How Used to represent vector on a diagram?
Vectors can be represented on a diagram by drawing an arrow from a reference point (origin) to the final point of the vector. The length of the arrow represents the magnitude of the vector, and the direction of the arrow indicates the direction of the vector in space. Additionally, sometimes vectors are represented by bold letters or with a line segment over the variable symbol.
The changing of values for an object through a system is represented by the?
represented byRepresented By a object diagram.
