Software Architecture Fundamentals

Software Architecture Fundamentals

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1. Introduction to System Design

Now you will be introduced to the core principles of system design and why it plays a critical role in software development. You will explore what system design entails, including the process of planning and structuring software to meet business and technical requirements. Key components such as architecture, scalability, performance, and security will be covered to provide a solid foundation for evaluating and building effective systems. You will also learn the distinction between high-level design (which focuses on the overall system structure) and low-level design (which deals with detailed components like classes, methods, and data structures).

What is System Design

Key Components of System Design

High-level Design

Low-level Design

2. High Level Design

Here you will explore various architectural patterns that define the overall structure of software systems, including monolithic architecture, service-oriented architecture (SOA), microservices, and onion architecture. You will analyze the strengths and weaknesses of each approach and learn when to apply them in different scenarios. By the end of this section, you'll have a solid understanding of high-level design principles that can guide your software development decisions.

Monolith Architecture

Service-Oriented Architecture (SOA)

Microservice Architecture

Onion Architecture

What Architecture to Choose and Why

3. Low Level Design

Let's dive into low-level design concepts, focusing on the creation of class diagrams to represent system structure and the design of efficient methods and functions for reusability. You will also explore various data structures and best practices for database design, equipping you with the skills to build detailed and effective software designs that enhance system performance and maintainability.

Method and Function Design

Data Structures Design

Database Design

4. Additional Design Approaches

This section introduces modern design methodologies, including Test-Driven Development (TDD), where you'll learn to write tests before code to ensure reliability. You'll also explore Domain-Driven Design (DDD), focusing on aligning software with business domains, and Behavior-Driven Development (BDD), which emphasizes collaboration and user-centered design through behavior-based testing. These approaches will provide practical techniques to enhance software quality and business alignment.

Test-Driven Design

Behavior-Driven Development

Domain-Driven Design

Course Content

Software Architecture Fundamentals

Software Architecture Fundamentals

1. Introduction to System Design

What is System Design Key Components of System Design High-level Design Low-level Design

2. High Level Design

Monolith Architecture Service-Oriented Architecture (SOA)Microservice Architecture Onion Architecture What Architecture to Choose and Why

3. Low Level Design

Class Design Method and Function Design Data Structures Design Database Design

4. Additional Design Approaches

Test-Driven Design Behavior-Driven Development Domain-Driven Design 4+1 View Model

Key Components of System Design

Before diving into the details of system design, it's important to understand its key components, which form the foundation of a well-designed system. In system design, we focus on how to structure the architecture, ensure scalability, maintain optimal performance, and build strong security measures.

The table below outlines these essential components, offering a brief description of each and providing real-world examples to help you visualize how they apply in practice.

As we delve into the world of system design, our focus will primarily be on architecture. Understanding the architecture of a system is crucial because it sets the foundation for how different components interact and work together seamlessly.

In our discussions, we will use the e-commerce domain as a consistent example to illustrate key concepts. This will allow us to explore various architectural styles and principles in a practical context.

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Section 1. Chapter 2

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