What is a logical architecture?
Logical architecture is a structural design that gives as much detail as possible without constraining the architecture to a particular technology or environment. For example , a diagram that illustrates the relationship between software components.
What is physical architecture?
The physical architecture is the physical layout of a system and its components in a schema. It refers to some representation of the structure or organization of the physical elements of the system. The physical architecture should be part of the Allocated and Product Baselines.
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 the starting point of logical architecture?
The completed logical architecture design and the system requirements derived during requirements analysis constitute the deployment scenario. The deployment scenario is the starting point for designing the deployment architecture , as explained in Chapter 5, “Designing a Deployment Architecture .”
What are logical components?
Logical components : Represent concepts in the domain being studied, and are independent of the physical aspects of the software or hardware. Physical components : Represent actual software or hardware technology.
What is a functional architecture diagram?
A Functional Architecture is an architectural model that identifies system function and their interactions. It defines how the functions will operate together to perform the system mission(s). Generally, more than one architecture can satisfy the requirements.
What is the function of the architecture?
The placement, form, and features of a building must reflect its intended use — and the people who use it — while permitting future adaptations or improvements. Structural and mechanical systems are crucial to the function of architecture .
What is a system architecture diagram?
An architectural diagram is a diagram of a system that is used to abstract the overall outline of the software system and the relationships, constraints, and boundaries between components . It is an important tool as it provides an overall view of the physical deployment of the software system and its evolution roadmap.
What is difference between physical and logical standby database?
The main difference between physical and logical standby databases is the manner in which log apply services apply the archived redo data . For physical standby databases , Data Guard uses Redo Apply technology, which applies redo data on the standby database using standard recovery techniques of an Oracle database .
What is the difference between logical and physical models?
The logical model and the physical model are separate models . The logical model enables you to represent business information and define business rules. The physical model enables you to focus on the physical implementation of the model in a database.
How do you convert logical data model to physical?
To transform a logical data model into a physical data model : Select a logical data model or a logical data model object in the Data Project Explorer. Click Data > Transform > Physical Data Model from the main menu. If the Check Model page is displayed, select the appropriate options:
What is the basic architecture of a computer system?
The different components in the Computer System Architecture are Input Unit, Output Unit, Storage Unit, Arithmetic Logic Unit, Control Unit etc. A diagram that shows the flow of data between these units is as follows − The input data travels from input unit to ALU.
What is logical infrastructure?
A logical architecture depicts infrastructure service levels by showing the necessary components and their dependencies. A logical architecture also distributes the components among logical tiers that represent presentation, business, and data services that can be ultimately accessed by a client tier.
What is deployment architecture?
A deployment architecture depicts the mapping of a logical architecture to a physical environment. The physical environment includes the computing nodes in an intranet or Internet environment, CPUs, memory, storage devices, and other hardware and network devices.