Software Development & Design Principles Flashcards

What does 'coupling' measure in software design?

Answer: The degree of interdependence between modules

Coupling measures the degree to which one module depends on or knows about another module.

Which principle in object-oriented design states that objects of a superclass should be replaceable with objects of its subclasses without breaking the application?

Answer: Liskov Substitution Principle

The Liskov Substitution Principle (LSP) states that subclasses must be substitutable for their base classes without altering program correctness.

What type of testing verifies that individual components of a system work correctly in isolation?

Answer: Unit testing

Unit testing focuses on verifying that individual units or components of software work as expected in isolation.

In software architecture, what is a microservices architecture characterized by?

Answer: Small, independently deployable services communicating via APIs

Microservices architecture structures an application as a collection of small, loosely coupled services that communicate via well-defined APIs.

Which version control workflow involves each developer working on a dedicated long-running branch for a feature?

Answer: Feature branch workflow

The Feature Branch Workflow has developers create a dedicated branch for each feature, keeping the main branch stable.

What is the Observer design pattern primarily used for?

Answer: Defining a one-to-many dependency so that when one object changes state, all dependents are notified

The Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

What does the acronym DRY stand for in software development principles?

Answer: Don't Repeat Yourself

DRY (Don't Repeat Yourself) is a principle aimed at reducing repetition of code patterns by replacing duplicated logic with abstractions.