What is the difference between logical and physical architecture?

The primary difference between logical and physical architecture documentation is that, while logical architecture’s concerns end with identifying functional elements of the system, physical architecture takes an additional step, specifying actual devices that those functional elements execute on.

What is the difference between a physical design and a logical design?

The main difference between logical database design and physical database design is that logical database design helps to define the data elements and their relationships, but physical database design helps to design the actual database based on the requirements gathered during the logical data design.

What is a physical architecture?

(1) A physical architecture is an arrangement of physical elements (system elements and physical interfaces) which provides the design solution for a product, service, or enterprise, and is intended to satisfy logical architecture elements and system requirements.

What is logical and physical?

The basic difference between Logical and physical address is that Logical address is generated by CPU in perspective of a program whereas the physical address is a location that exists in the memory unit.

What is the starting point of logical architecture?

It is also the starting point for Logical Architecture, which elaborates the component specifications and architectural mechanisms to make the architecture precise and actionable.

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What are logical requirements?

The requirements for a logical and physical database vary by size and design parameters. A logical database must be able to access and identify all files within the storage system to operate correctly, whereas a physical database manages a much smaller field of information.

Which is the logical design of database?

Definition. Logical database design is the process of transforming (or mapping) a conceptual schema of the application domain into a schema for the data model underlying a particular DBMS, such as the relational or object-oriented data model.

What is the objective of physical architecture design?

The goal of physical architecture model development activities is to provide the best possible physical architecture model made of suitable systems, technological system elements, and physical interfaces (i.e., the architecture that answers, at best, all system requirements, depending on agreed limits or margins of …

How do you draw a physical architecture diagram?

How to draw an architectural diagram

  1. Document your shapes. …
  2. And the edges. …
  3. Keep your arrows consistent. …
  4. Use colors sparingly. …
  5. Use multiple diagrams, if necessary. …
  6. Merge incomplete diagrams. …
  7. Include legends/keys/glossaries. …
  8. Use diagramming software.

Which is a logical address?

In computing, a logical address is the address at which an item (memory cell, storage element, network host) appears to reside from the perspective of an executing application program. A logical address may be different from the physical address due to the operation of an address translator or mapping function.

Why do we need logical address?

Logical address is used to reference to access the physical memory location. A logical address is generated so that a user program never directly access the physical memory and the process donot occupies memory which is acquired by another process thus corrupting that process.

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What is the difference between physical and logical storage?

Physical (disk) storage contains all the files in the database. Logical storage structures, such as tablespaces, segments, extents, and blocks, appear on the disk but are not part of the dataset. … A book serves as a helpful analogy for the difference between physical and logical storage.

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