D. You have been selected to find the best client-server architecture for a Web-based order entry system that is being developed for L.L. Bean. Write a short memo that describes to the project manager your reason for selecting an n-tiered architecture over a two-tiered architecture. In the memo, give some idea as to what different components of the architecture you would include.
Please help Question is from "SYSTEMS ANALYSIS & DESIGN"
MEMO:
Subject: Recommendation on Client-Server Architecture for L.L. Bean Web-based Order Entry System
Dear Project Manager,
I have been considering the best architecture for the Web-based order entry system that is being developed for L.L. Bean. After reviewing the requirements and constraints of the project, I have concluded that an N-tiered architecture is the best choice for this system.
An N-tiered architecture separates the different components of the system into separate, distinct layers. This allows for a more scalable and flexible system, as each layer can be changed or updated without affecting the other layers. In addition, the N-tiered architecture can improve performance by allowing the application to be distributed across multiple servers, which can be useful for handling large amounts of traffic.
In an N-tiered architecture, the different components would include the following:
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Presentation Tier: This layer is responsible for rendering the user interface and handling user interactions. It can be implemented as a web application that runs on a web server, or as a client-side application that runs in a web browser.
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Application Tier: This layer is responsible for implementing the business logic and data access. It can be implemented as a web application that runs on a web server, or as a set of web services that are accessed by the presentation tier.
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Database Tier: This layer is responsible for storing the data that is used by the system. It can be implemented as a traditional relational database management system (RDBMS) or as a NoSQL database.
By using an N-tiered architecture, the system can be designed to be highly scalable and highly available. For example, the presentation and application tiers can be deployed across multiple servers in a load-balanced configuration, and the database tier can be deployed as a clustered database system to ensure high availability.
In conclusion, I recommend that the Web-based order entry system for L.L. Bean be developed using an N-tiered architecture. This architecture will provide a scalable and flexible solution that can handle large amounts of traffic, and can be easily maintained and updated over time.
I would be happy to discuss this recommendation further and answer any questions you may have.
Sincerely,
[Your Name]
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