What are the five UX models of development?

Waterfall Model: The waterfall model is the oldest and most well-known UX model. It is a linear, sequential approach to development that involves a series of stages, such as planning, design, implementation, testing, and maintenance. Each step is completed before moving on to the next, and changes made in later stages can be costly and time-consuming. This model is helpful for small, straightforward projects with well-defined requirements.

1. Agile Model: The Agile model is a more flexible approach to development that emphasises collaboration, adaptability, and quick iteration. It involves breaking down the development process into small, manageable chunks called sprints, and each sprint includes planning, design, implementation, testing, and feedback. This model is helpful for complex projects with changing requirements or unclear user needs.

2. Lean UX Model: The Lean UX model is a user-centric approach to development that emphasises rapid prototyping and testing. It involves creating a lightweight product or service prototypes and testing them with users to gather feedback and iterate quickly. This model is helpful for early-stage development when the user needs and requirements remain unclear.

3. Design Thinking Model: The Design Thinking model is a human-centred approach to development that emphasises empathy, creativity, and experimentation. It involves understanding the user's needs and goals, ideating and prototyping solutions, and testing and refining the solution based on user feedback. This model is helpful for complex problems that require creative solutions.

4. Dual-Track Model: The Dual-Track model is a hybrid approach to development that combines the best aspects of Agile and Design Thinking. It involves two parallel tracks - one for discovery and one for delivery. The discovery track focuses on understanding user needs, defining the problem, and ideating solutions, while the delivery track focuses on implementing and testing the solutions. This model is helpful for large, complex projects with uncertain user needs.

In conclusion, these five UX development models offer different approaches to creating products and services that meet user needs. Each model has its strengths and weaknesses and is helpful for different types of projects. Understanding these models can help UX designers and developers choose the most appropriate approach for their project and ultimately create products and services that are effective, efficient, and enjoyable for users.