Wireframing is an important tool for product design and development.
Wireframes are typically created in the product design and development process in one way or another, even if it's a quick sketch on scratch paper.
Any involved in the product in any capacity.
Wireframes are the blueprint for design.
They're supposed to connect the underlying conceptual structure (or information architecture) to the surface (or visual design) of a website or mobile app. More specifically they're visual representations of an interface, used to communicate the following details to get everyone on the same page:
- Structure: How will the pieces of this site be put together?
- Content: What will be displaed on the site?
- Information hierarchy: How is this information organized and displayed?
- Functionality: How will this interface work?
- Behavior: How does it interact with the user? And how dos it behave?
Wireframes are not supposed to represent the visual design, contact graphic elements or convey the brand or identity.
You can use them to show user flows between views or pages. Also you can use wireframes to push the user interface development process.