Tutorials Software Architect Tutorial
Introduction to Software Architecture
Introduction to Software Architecture: free step-by-step lesson with examples, common mistakes, and interview tips — part of Software Architect Tutorial on Toolliyo Academy.
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Software Architect Tutorial · Lesson 1 of 100
Introduction to Software Architecture
Foundations & Styles → Distributed & Data → Cloud & Quality → Leadership & Cases
Foundations & Styles · 1 — Decide · ~6 min · Architecture Foundations
What is this?
Software architecture is the set of structural decisions that are hard to change later: boundaries, communication style, data ownership, and quality goals (scale, security, cost). ArchDesk is this course’s practice product — a multi-team platform you will keep redesigning on paper.
Why should you care?
Without architecture, teams ship features that fight each other. Interviews and design reviews expect you to name trade-offs, not buzzwords.
See it live — copy this example
These are architecture exercises: fill templates, draw boxes, write ADRs. No cloud bill required.
# Architecture one-pager template
System: ArchDesk
Users: ...
Critical qualities: latency | availability | cost | security
Key containers: Web | API | Worker | DB
Top risks: ...What happened?
- A one-pager forces clarity.
- Containers are deployable pieces.
- Qualities tell you what “good” means before drawing microservices.
Practice next
- Fill the template for a system you know.
- Circle the quality that matters most.
- List two decisions that would be expensive to reverse.
- Add a cost ceiling.
- Name the team that owns each container.
Remember
Architecture = hard-to-change decisions. Qualities drive structure. One-pagers beat vague slides.
Kickoff review
CTO asks “what is the architecture?”
Outcome: You answer with qualities, boundaries, and risks.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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