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Differences between a logical design and a physical design of a system design and with examples?
logical physical ---------- -----------1.it is an abstract 1.it is in detail.2.it include the process chat. 2.it includes the organisationl chat.3.it involves soft copy. 3.it involves the hard copy.4.it represents the module. 4.it represents the electronics system.
Could you explain the purpose of logical database design?
Logical database design is the process of designing the database at a conceptual level as opposed to a physical level. There are many advantages of conceptual database design, such as the ability to design the database without having to commit to a particular database management system, to produce a document that is readable and understandable to everyone in the company (not just the database person) and to produce an overall design document that can be saved as a part of the documentation of the database for future enhancement, maintenance and support work. Logical database design produces documents for use in the same way that architects produce blueprints for building purposes.
What is the primary deliverable from logical database design?
normalized relations
What are statements that require proof in logical a system?
The statements that require proof in a logical system are theorems and corollaries.
What are the statements that require proof in a logical system?
The statements that require proof in a logical system are theorems and corollaries.
Which are accepted without proof in a logical system Postulates Axioms Theorems or Corollaries?
Postulates and axioms are accepted without proof in a logical system. Theorems and corollaries require proof in a logical system.
What is the difference between network architecture and network topology?
Network architecture refers to the design and structure of a network, including components, protocols, and technologies used for communication. Network topology, on the other hand, refers to the physical or logical layout of devices and how they are connected in a network, such as bus, star, ring, or mesh. In essence, network architecture defines how components work together, while network topology defines how components are arranged.
What is logical dfd?
the dfd which independent view of the system is called logical dfd
What are main features of SSADM?
Tell me when you find out
Design in terms of system design analysis?
system analysis and design
Stages of system analysis?
The stages of system analysis are scope definition, problem analysis, requirements analysis, logical design and decision analysis. System analysis is defined as the study of sets of a system to find ways of improving its efficiency.
What is a logical database designer?
* Logical database design: * ensuring, via normalisation procedures and the definition of integrity rules, that the stored database will be non-redundant and properly connected; * Physical database design: * specifying how database records are stored, accessed and related to ensure adequate performance. What is logical database designerThe major role of logical database design is to transform the combined, reconciled data specifications into basic or atomic elements following the well established rules for well structures data specifications. With a complete logical database design in place an analyst begins to specify the logic of the particular computer programs and queries needed to maintain and report the database content. The person who maintain or responsible to perform the above task is known as Logical Database designer.
