Normally for a web design firm have four Ds methodology for the website development process, which are discovery, design, develop and deploy
Discovery is more about strategy understanding about your business, your client and what are you trying to achieve and bringing all that into design.
In design, where we start to plan and come up with wireframe and visual design for the website. This visual design is important guidance or reference for the developer.
Develop is the program coding part for website development, web developer will be putting all prototype design into action.
Last will be deploy process, the team will be going through several checklists to making sure that everything of the website is functioning. After that, the website will be putting live by migrating from development site to production site.