Over the years I've collected quite of few design process diagrams that I like and use as reference to constantly iterate on my process. Here are some of my favorites.
Donald Norman's Double-Diamond Model
Reference: The Design of Everyday Things
Dan Nessler's Double Diamond Model
Design Council's New Double Diamond
Reference: https://medium.com/design-leadership-notebook/the-new-double-diamond-design-process-7c8f12d7945e
d.school's User-Centered Prototype-Driven Design Process
Reference: http://dstudio.ubc.ca/research/toolkit/processes/
Stanford ME310 Design Innovation Process
Reference: http://web.stanford.edu/group/me310/me310_2016/about.html
EffectiveUI: UX Design Process
Objective-Based Design
Reference: http://www.dtelepathy.com/blog/philosophy/objective-based-design-creative-approach-to-solving-business-challenge
http://www.axure.com/c/blog/177-five-ways-ux-firm-digital-telepathy-designs-through-conversation.html
Vijay Kumar's Analysis-Synthesis Bridge Model
Reference: http://www.dubberly.com/articles/interactions-the-analysis-synthesis-bridge-model.html
Laseau's Funnel
Mentioned by Bill Buxton in Sketching User Experience
Reference: https://blog.prototypr.io/a-good-design-process-90ae32d31dcd#.otxowy83a
Engineering Design Model
From Engineering Design Methods by Nigel Cross
Reference: http://www.core77.com/posts/52948/Why-is-Sketching-Still-Important-To-Design
NodeSource's Digital Product Design
Reference: https://medium.com/@nodesource/what-is-digital-product-design-93caad4e4035#.vqd75mfoj
Paul Hershey's Process
Nielsen Norman Group - Design Thinking 101
Reference: https://www.nngroup.com/articles/design-thinking/
Hang Guo's Spiral UX Design Process
Reference: http://www.uxmatters.com/mt/archives/2015/04/when-change-is-constant-a-spiral-ux-design-model.php
Ben Callahan's Responsive Process
from Smashing Book 5
Reference: https://www.smashingmagazine.com/2016/02/efficient-responsive-design-process/
nurun Human-Centered Design Process
Reference: http://www.nurun.com/en/what-we-do/
IDEO's Design Process
Reference: https://medium.com/digital-experience-design/how-to-apply-a-design-thinking-hcd-ux-or-any-creative-process-from-scratch-b8786efbf812#.42ul4ts9w
Nice diagrams. Thank you very much! By the way, if someone needs help you can visit https://fuselabcreative.com/services/ux/ for some examples of UX works and in order to find the inspiration.