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Marty Cagan, the author of *[Inspired](https://svpg.com/inspired-how-to-create-products-customers-love/)*, suggests four main risk types in product management:
1. **Value risk**, bringing zero value to the customer.
2. **Usability risk**, building something a user can’t figure out how to use.
3. **Feasibility risk**, the risk of lacking technology, skills, or time for the product.
4. **Business viability risk**, the risk of not achieving your business goals with the product.
3/36 - PD Preparation & Frameworks
3/36 - PD Preparation & Frameworks
Product Mindset
Microsoft developer who moved to Google, Googlers work and think at a higher level of abstraction than do developers at many other companies, including Microsoft: “Google uses Bayesian filtering the way Microsoft uses the if statement” ([Credit: Joel Spolsky](http://www.joelonsoftware.com/items/2005/10/17.html)
The Google Technology Stack
Michael Nielsen
**10. Good Design is as little design as possible**
Less but better – because it concentrates on the essential aspects and the products are not burdened with inessentials. Back to purity, back to simplicity!
TEN PRINCIPLES FOR GOOD DESIGN
R / D
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