The design process is well covered in the VMware vSphere Design Workshop course.
The VMware vSphere Design Workshop course includes the following modules:
- Design process overview
- VMware vSphere storage design
- VMware vSphere network design
- Compute resources design
- Virtual machine design
- VMware vSphere virtual data center design
- Management and monitoring design
vSphere Design Workshop is a three-day, instructor-led class at https://mylearn.vmware.com/mgrReg/courses.cfm?ui=www_edu&a=one&id_subject=79170.
VCDX certification also provides some useful information; the entire path of VCDX-DCV certification provides a complete VCDX methodology. This methodology focuses on how to identify business needs and how to map them to design and implement decisions.
You can find more information about becoming VCDX at https://www.vmware.com/education-services/certification/vcdx...