Question: What Is The Difference Between Physical And Logical Diagram?

What is a logical process?

A logical level process model is used to model the detailed requirements of an application system.

During analysis, the conceptual process model evolves into the detailed functional requirements, or logical process model.

It describes the behaviour of processes and their interactions..

What is a physical diagram?

A physical diagram is generally used to visualize the interconnection of network devices and other physical components. It displays the topology and the existence of physical links between devices. Mainly used by IT staff, a physical diagram visually documents the physical connections.

What is a logical diagram?

A logical data diagram provides a graphical view of the structure of an information system, and helps you analyze the structure of your data system through entities and relationships, in which primary identifiers migrate along one-to-many relationships to become foreign identifiers, and many-to-many relationships can …

What are the five basic logical connectives?

The five different types of logical connectives are conjunction, negation, disjunction, conditional, and bi-conditional.

What is a physical topology diagram?

Network topology is the topological structure of the computer network. … The physical network topology depicts the placement of the components in the network. It shows the configuration of cables, computers, and other devices.

What is activity diagram example?

An activity diagram visually presents a series of actions or flow of control in a system similar to a flowchart or a data flow diagram. Activity diagrams are often used in business process modeling. They can also describe the steps in a use case diagram. Activities modeled can be sequential and concurrent.

What is logical and physical design?

The logical design is more conceptual and abstract than the physical design. In the logical design, you look at the logical relationships among the objects. In the physical design, you look at the most effective way of storing and retrieving the objects. Your design should be oriented toward the needs of the end users.

What is the difference between logical and physical network diagram?

Logical network diagrams focus in on how traffic flows across the network, IP addresses, admin domains, how domains are routed, control points, and so on. … A physical network diagram will, ideally, show the network topology exactly as it is: with all of the devices and the connections between them.

What are 2 logical LAN topologies?

It includes information about nodes and switches which are placed in the network. There are majorly two types of logical topology which are bus topology and ring topology.

What are logical connectors examples?

Time: after, as long as, as soon as, before, since, when, whenever, until. … Manner: as (e.g: Do that as your brother does it.), … Reason: since, because, as (e.g.: He left, as it was late.), … Simultaneous: while, as (e. … Concessive: although, even though, though, while. … Additive: in addition, moreover, furthermore.

What is physical data flow diagram?

A logical DFD focuses on the business and business activities, while a physical DFD looks at how a system is implemented. … It provides a solid basis for the physical DFD, which depicts how the data system will work, such as the hardware, software, paper files and people involved.

What is a logic gate simple definition?

Logic gates are the basic building blocks of any digital system. It is an electronic circuit having one or more than one input and only one output. The relationship between the input and the output is based on a certain logic. Based on this, logic gates are named as AND gate, OR gate, NOT gate etc.

What is logical and physical design in database?

Physical modeling involves the actual design of a database according to the requirements that were established during logical modeling. Logical modeling mainly involves gathering the requirements of the business, with the latter part of logical modeling directed toward the goals and requirements of the database.

What is a logical connection?

A A logical connection consists of a pair of physical connections that are configured in a warm-standby environment. … The source of the replication data is the active database while the target of replication is the standby database.

What are the types of logical connectors?

Logical connector is a connector which link the semantical unit of language. Logical connectors are used to join or connect two ideas that have a particular relationship. These relationships can be: sequential (time), reason and purpose, adversative (opposition, contrast and/or unexpected result), condition.