Object Oriented Design courses can help you learn principles like encapsulation, inheritance, and polymorphism, along with design patterns such as Singleton and Factory. You can build skills in creating reusable code, improving software maintainability, and designing systems that are easier to understand and extend. Many courses introduce tools like UML for modeling, as well as programming languages such as Java and Python, which are commonly used to implement object-oriented concepts in real-world applications.

Northeastern University
Skills you'll gain: Systems Development Life Cycle, Software Development Life Cycle, Agile Software Development, Agile Methodology, Requirements Analysis, Agile Project Management, Requirements Management, Software Development Methodologies, User Requirements Documents, Requirements Elicitation, User Story, Waterfall Methodology, Software Architecture, Project Management, Cross-Functional Collaboration, Quality Assurance
★ 4.9 (21) · Beginner · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Psychology, Research, Research Design, Scientific Methods, Research Methodologies, Human Learning, Sensory Systems Analysis, Culture, Decision Intelligence, Experimentation, Case Studies, Learning Strategies
Beginner · Course · 3 - 6 Months

Board Infinity
Skills you'll gain: Make.com, AI Workflows, Microsoft Power Automate/Flow, Agentic Workflows, Business Process Automation, Generative AI Agents, Process Flow Diagrams, No-Code Development, AI Orchestration, Agentic systems, Process Mapping, Business Workflow Analysis, Process Design, Workflow Management, Automation, Process Improvement, Process Optimization, Continuous Improvement Process, Operational Efficiency, IT Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Inventory and Warehousing, Inventory Management, Warehousing, Inventory Control Systems, Inventory Control, Materials Management, Warehouse Operations, Warehouse Management, Inventory Management System, Inventory Accounting, Supply Chain Systems, Logistics Management, Order Management, Order Fulfillment, Reverse Logistics, Order Processing, Cost Accounting
★ 4.3 (14) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: WordPress, Ajax, Development Environment, Content Management Systems, Content Management, Secure Coding, Web Development, Data Management, Web Design and Development, PHP (Scripting Language), Database Management, Dashboard Creation, Cascading Style Sheets (CSS), Application Security, Javascript
★ 4 (6) · Intermediate · Specialization · 1 - 4 Weeks

Skillshare
Skills you'll gain: Unreal Engine, Cinematography, Animation and Game Design, Photo/Video Production and Technology, Virtual Environment, Video Production, 3D Assets, Game Design, Storytelling, Post-Production, Visual Storytelling, Video Editing, Animations, Media Production, Image Quality, Real Time Data, Model Optimization
Beginner · Specialization · 1 - 3 Months

Edureka
Skills you'll gain: Incident Management, Governance, Incident Response, Data Governance, Compliance Management, Policy Development, Risk Management, Governance Risk Management and Compliance, Risk Management Framework, Supplier Risk Management, Artificial Intelligence, Model Training, AI Security, Testability, Statistical Methods, Data Science, Model Optimization, Applied Machine Learning, Machine Learning Methods, Python Programming
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Customer Insights, Customer Analysis, User Feedback, Customer experience strategy (CX), Customer experience improvement, Customer Service, Market Research, Branding, Advertising, Public Relations
★ 4.7 (14) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Fine-tuning, Collaborative Software, Large Language Modeling, Model Optimization, Data Management, Data Preprocessing, Data Validation, Data Cleansing, Natural Language Processing, Verification And Validation, Data Quality, AI Workflows
★ 4.2 (6) · Intermediate · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Data Literacy, Data Storytelling, Scientific Visualization, Visualization (Computer Graphics), Data Presentation, Data Visualization, Cinematography, Data Visualization Software, Spatial Data Analysis, Computer Graphics, Graphics Software, 3D Modeling, Post-Production, Color Theory
Beginner · Course · 1 - 3 Months

Skills you'll gain: Version Control, Git (Version Control System), Selenium (Software), Test Automation, Jenkins, Test Script Development, Software Versioning, Continuous Integration, Test Tools, Continuous Delivery, Test Data, Test Case, Software Testing, CI/CD, Code Reusability, Command-Line Interface, File I/O
★ 4.8 (6) · Advanced · Course · 1 - 3 Months

Coursera
Skills you'll gain: Model Deployment, Multi-Cloud, Cloud Security, AI Security, MLOps (Machine Learning Operations), DevSecOps, Cloud Management, Security Architecture Review, Microservices, Site Reliability Engineering, Security Controls, CI/CD, System Monitoring, Infrastructure as Code (IaC), Compliance Management, Automation, Kubernetes, Docker (Software), Incident Management, Performance Analysis
Intermediate · Specialization · 3 - 6 Months