M10 — Course Summary and New Ideas

SENG 365 — Software Engineering

Neil Ernst

nernst@uvic.ca

University of Victoria

2026-07-24

Learning Objectives

Learning Objectives

• Course summary
• New ideas: knowing when and how to apply design

Wider View

Watch and Reflect

• Dave Snowden — Cynefin (to ~min 26)
• Kent Beck — 3X: Explore, Expand, Extract (to ~min 33)

Cynefin and 3X: matching the design approach to the situation.

Summary

Key Concepts

• The design space and tradeoffs
• When to design: always. Refactoring vs. architecture.
• Capturing and sharing knowledge (ADRs)

What We Covered

• Encapsulation, refactoring, testing, code smells
• New paradigms: functional programming, concurrency

Continuing to Learn

• Learning new things is a core skill of the discipline.
• Match design effort to the problem: sometimes just start; sometimes probe and spike; sometimes step back and architect.

In-Class Activities

Day 1

• Play framework — getting started; architecture diagram

Day 2

• Course summary and Cynefin / 3X discussion — when and how to apply design.