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Explain the basic idea behind the layered architectural style and give an example of its common deployment.
Explain the basic idea behind the layered architectural style and give an example of its common deployment.
The basic idea behind the layered architectural style is that components are organized in a layered fashion where a component at layer $L_j$ can make a downcall to a component at a lower-level layer $L_i$ (with $i < j$) and generally expects a response. Only in exceptional cases will an upcall be made to a higher-level component. A common deployment of this style is in network communication, where only down calls to the next lower layer are made.
What does an object-based architectural style emphasize and how is it formulated?
What does an object-based architectural style emphasize and how is it formulated?
An object-based architectural style emphasizes the representation of data and behavior as self-contained objects. It is formulated in terms of components, the way that components are connected to each other, the data exchanged between components, and how these elements are jointly configured into a system.
Describe the characteristics of a resource-centered architectural style.
Describe the characteristics of a resource-centered architectural style.
A resource-centered architectural style focuses on the resources in a system. It emphasizes the identification and manipulation of resources and is formulated in terms of components, the way that components are connected to each other, the data exchanged between components, and how these elements are jointly configured into a system.
What is the main idea behind event-based architectural style and how is it characterized?
What is the main idea behind event-based architectural style and how is it characterized?
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Explain the concept of architectural styles and how they are formulated.
Explain the concept of architectural styles and how they are formulated.
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Study Notes
Architectural Styles
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Layered Architectural Style: breakup of a system into hierarchical layers, each layer interacts only with its adjacent layers.
- Example: OSI 7-layer model for network communication.
Object-Based Architectural Style
- Emphasizes modularity and reuse of objects to build systems.
- Formulated by identifying objects and their interactions, then combining them to achieve a specific functionality.
Resource-Centered Architectural Style
- Resource allocation and management are key characteristics.
- Systems are designed around the resources they manage and allocate.
Event-Based Architectural Style
- Main idea: events trigger actions, which creates a flow of actions and reactions.
- Characterized by asynchronous communication between components.
Architectural Styles
- Concept: a set of principles and guidelines for designing a system's architecture.
- Formulation: a style is formulated by identifying the key concepts, principles, and patterns that guide the architecture of a system.
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Description
Test your knowledge on architectural styles in distributed systems with this quiz. Explore concepts such as layered architecture, object-service based architecture, and resource-based architecture.
