Delve into software architecture, exploring key principles, patterns, and quality attributes. Gain insights with case studies and projects, enhancing your practical skills in system design and optimization.

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This course offers a deep dive into the world of software architecture. It’s designed to equip software developers and architects with the knowledge and skills necessary to create, evaluate, and optimize software systems. The course covers a range of critical topics to ensure a strong foundation in architectural principles and strategies.

You will start by exploring architectural concepts and the relationship between quality attributes, requirements, and architectural styles. You’ll also examine different architectural patterns and strategies, including centralized and decentralized architecture, layered pattern, broker pattern, and microservices. Then, you’ll go into the details of important quality attributes needed while developing an architecture.

The course is equipped with multiple case studies and two projects to further enhance learning. These real-world scenarios and hands-on projects are strategically incorporated to give learners practical insights.

Software Architecture in Applications

# Overview
**System failure** in software architecture refers to a system's inability to execute its intended functions or meet the demands of its users. Hardware faults, software failures, network failures, and human mistakes can all cause system failures.

 
# Hardware failures
**Hardware failures** occur when one or more components of a system, such as a processor, memory, or storage device, stop functioning properly. Hardware failures can be caused by a variety of factors, including physical damage, wear and tear, and manufacturing defects.
 
As an example, assume that an e-commerce website uses a fleet of servers to handle incoming requests and process customer orders. One day, a server in the cluster fails, causing the website to become unavailable. This is a case of a hardware failure, which can happen in a critical component, such as the CPU, resulting in system failure.
 
# Software failures
**Software failures** occur when one or more software programs or applications stop functioning properly. Bugs, coding errors, and compatibility issues can cause software failures.
 
Let’s presume that a healthcare application allows patients to schedule appointments with doctors and access their medical records online. Furthermore, assume that a software failure occurs, and patients are unable to access the application. This failure might have been caused by a recent update to the code, which could have introduced a bug that caused the application to fail. 
 
# Network failures
**Network failures** occur when one or more components of a network, such as routers, switches, or cables, stop functioning properly. Network failures can be caused by physical damage, configuration errors, or overloaded networks.
 
Consider an online gaming platform that allows players to play multiplayer games with other players around the world. A router failure (or a network failure) can cause players to experience high latency and frequent disconnections from the game servers.
 


Learn what system failure and fault tolerance are and their potential causes.

Getting Started

The Architecture Meta-Frame

Architectural Styles and Strategies

Architectural Styles and Strategies

Scalability

Availability

Load Balancing

A Basic Load Balancer

Security

Caching

Web Architecture

Case Studies

A Basic MVC Data Flow

Conclusion

System Failure and Fault Tolerance

Overview

Hardware failures

Software failures