Design Patterns in .NET for End User — Lesson 2: Creational and Structural Patterns with Practical .NET Examples

Topics Covered

• Use creational patterns such as Factory, Abstract Factory, Builder, Prototype, and Singleton
• Use structural patterns such as Adapter, Facade, Decorator, Composite, Bridge, and Proxy
• Use behavioral patterns such as Strategy, Observer, Command, State, Template Method, and Mediator
• Step-by-step implementation workflow and configuration decisions
• Hands-on verification of core features, data, and expected results
• Documentation of assumptions, dependencies, naming, and change controls

Guided Practice Steps

1. Translate the lesson requirement into a clear Design Patterns in .NET for End User implementation or analysis objective.
2. Document assumptions, selected tools or features, dependencies, risks, and expected results.
3. Perform the guided task, capture evidence, and compare the result with the acceptance criteria.
4. Record issues, corrective actions, and a reusable operational or development note.

Practical Activity

Implement one creational and one structural pattern in a small .NET scenario.

• Define the scenario, inputs, constraints, and expected outcome.
• Complete the activity and preserve screenshots, outputs, logs, code, or decision evidence.
• Review the result, identify gaps, and document corrective or improvement actions.

Validation Checklist

• The stated requirement and expected outcome are clear.
• Configuration, code, data, or design decisions are documented.
• Normal, boundary, failure, security, and operational considerations are reviewed.
• Evidence supports the conclusion and the next action is prioritized.

Lesson Outcome

Learners can explain and apply Creational and Structural Patterns with Practical .NET Examples within a realistic Design Patterns in .NET for End User scenario and support the result with validation evidence.