Prototyping is an important aspect in the design process, it is a process through which design teams showcase and implement all the work that has been done in the previous stages of the design process and what the product should look like and how the product will function.
Rapid Prototyping is a method of quickly creating mockups of your tool, product, system or a website and showing it to the User before the product is actually implemented and developed.
Usability lab test is a qualitative research method which is an integral and important part of the user-centered design process and its function is to observe and measure how effective a product is.
Understand how a website is actually used and transform data about it into meaning and actions for better usability.
Collect data regarding how real users react, feel and behave while using an interface.
This method helps to understand users emotions and thoughts behind actions they can to with the product.
Get a live feedback of users working on tasks on the interface/product and understand eventual problems.
This method helps to understand tasks user can do with the interface and which problems might occur.
Discover strengths and weaknesses from in- and outside perspective of your product.
Write a potential story how user would use the interface/application.