Welcome

• Course: Software Systems Modelling / Analiza și Modelarea Sistemelor Software (AMSS)
• Instructor: Traian-Florin Șerbănuță
• Semester: Fall 2025
• Contact: traian.serbanuta@unibuc.ro

Agenda

1. Introductions
2. Course overview
3. Why analysis & modeling?
4. Interactive exercise
5. Mini modeling challenge
6. Logistics & next steps

Who We Are

• Name
• Program
• One fun fact about you
• Your experience with software / modeling

Course Scope & Objectives

By the end of the course, students should get better at:

• Analyzing requirements of software systems
• Creating structural and behavioral UML models
• Applying (some) design patterns effectively
• Evaluating models for consistency and completeness

Course Structure

• Structural diagrams: class, package, component, deployment
• Behavioral diagrams: use case, state, activity, interaction
• Model evaluation & testing
• Documentation & design patterns
• Project

Assessments

• Project: 90%
  • teams consisting of 4-5 students (recommended)
  • there will be a single note for the entire team
  • documentation (50%) and presentation (50%)
• Participation: 20%

Why Analysis & Modeling?

• Software projects fail due to poor communication and unclear requirements
• Models help us:
  • Visualize systems
  • Detect errors early
  • Improve maintainability
  • Communicate across teams

Icebreaker: Model Your Morning Routine

Task: Draw a simple diagram of how you got from waking up to arriving in class.

• 5 minutes individual work
• Share with a neighbor
• Volunteers present their models

Mini Modeling Challenge

Scenario: A university library system.

• Users: students, faculty, external
• Operations: borrow, return, renew, reserve
• Constraints: borrowing limits

Task: Sketch a simple class diagram and at least one use case.

Discussion

• Compare different group solutions
• What entities and relationships emerged?
• What use cases are most critical?
• What was challenging?

Logistics & Next Steps

• Join Teams page:
• Course materials: https://traiansf.github.io/class/amss2025/
  • Materials from previous iteration of this class (prof. Claudia Chirita): GitHub
• Communication: Teams / email
• Next class: Requirements analysis

Homework

Readings

• Chapters 1 and 2 (and maybe 3) of Martin Fowler’s UML Distilled
• Familiarize with some design patterns (and associated humour)

Setup

Install/find some software for drawing UML diagrams you are comfortable with

Examples:

• PlantUML (also available as VSCode extension)
• Mermaid, 4 Github, a la Markdown. Sintaxă diagrame de clasă
• Lucidchart
• app.diagrams
• Visual Paradigm
• Microsoft Paint / Word / pencil and paper

Thank You

• Today: introductions, overview, first modeling exercises
• Next: dive deeper into requirements analysis

Questions?