Learning Objectives
5 objectives- Understand fundamental concepts and importance of software architecture in complex software systems.
- Identify and differentiate various architectural patterns and styles, including their advantages and implementation considerations.
- Apply core design principles to develop scalable, maintainable, and robust software architectures.
- Analyze software quality attributes and evaluate how architectural decisions impact them.
- Develop skills in architectural decision-making, evolution, refactoring, and use of supporting tools and technologies.
Content Outline
PreviewUnit 617: Software Architecture
1. Introduction to Software Architecture
- Definition and scope of software architecture
- Importance and benefits of software architecture
- Goals of software architecture in software development
- Role of architecture in managing complexity and facilitating communication
2. Architectural Patterns
2.1 Layered Architecture
- Structure and components
- Advantages and typical use cases
- Implementation considerations
2.2 Client-Server Architecture
- Client and server roles
- Communication mechanisms
- Benefits and challenges
2.3 Microservices Architecture
- Definition and characteristics
- Benefits: scalability, independent deployment
- Challenges: complexity, data management
2.4 Event-Driven Architecture
- Event producers and consumers
- Event buses and messaging
- Use cases and advantages
3. Design Principles in Software Architecture
- Modularity: definition, benefits, and impact on maintainability
- Abstraction: hiding complexity, exposing interfaces
- Encapsulation: protecting data and functionality
- Separation of Concerns: dividing responsibilities
- How principles contribute to scalability and robustness
4. Architectural Styles
4.1 Monolithic Architecture
- Characteristics and structure
- Advantages and limitations
4.2 Service-Oriented Architecture (SOA)
- Core concepts and service composition
- Benefits for interoperability and reuse
4.3 RESTful Architecture
- Principles of REST (Representational State Transfer)
- Statelessness, resource identification, and uniform interface
- Suitability for web-based applications
5. Software Quality Attributes
- Performance: response time, throughput
- Reliability: fault tolerance, availability
- Scalability: vertical and horizontal scaling
- Maintainability: ease of updates and fixes
- Security: confidentiality, integrity, authentication
- Impact of architectural decisions on quality attributes
- Strategies to achieve and balance quality attributes
6. Architectural Decision Making
- Identifying and gathering requirements
- Evaluating alternative designs
- Conducting trade-off analysis
- Stakeholder involvement and communication
- Documenting architectural decisions (ADR - Architectural Decision Records)
7. Evolution and Refactoring of Software Architecture
- Challenges in maintaining evolving architectures
- Techniques for refactoring architecture
- Managing technical debt
- Adapting architecture to new requirements and technologies
- Minimizing risks during architectural changes
8. Tools and Technologies in Software Architecture
- Modeling languages: UML diagrams (component, deployment, sequence, etc.)
- Architecture documentation tools (e.g., Archi, Sparx EA)
- Architectural decision support systems
- Visualization and analysis tools
9. Case Studies in Software Architecture
- Examination of real-world software architectures
- Analysis of architectural decisions and trade-offs
- Challenges faced and solutions implemented
- Lessons learned and best practices
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