10 Rules that will help you build secure, scalable & adaptable applications

People don't care about what you say, they care about what you build -Mark Zuckerberg

10 Rules that will help you build secure, scalable and adaptable applications:

1. Don't Over Engineer The Solution:

Resist the urge to overengineer solutions by testing ease of understanding with fellow engineers.

2. Design scale into the solution:

Design for 20X capacity, Implement for 3X capacity and Deploy for 1.5x Capacity.

3. Simplify the solution 3 times over:

Simplify scope using the Pareto principle. Simplification needs to happen during every aspect of product development.

4. Reduce DNS Lookups:

Reduction of objects, tasks, computation, and so on is a great way of speeding up page load time.

5. Reduce Objects Where Possible:

Reduce or combine objects but balance this by maximizing simultaneous connections. Test changes to ensure performance improvements.

6. Use Homegenous Networks:

Buy best of breed for other networking gear (firewalls, load balancers, and so on). Choose single providers.

7. Design to clone things:

Simply clone services and implement a load balancer.

8. Design to split different things:

Split both the services and the data along the lines defined by the verb/noun approach.

9. Design to split similar things:

Identify something you know about the customer and split both data and services based on that attribute.

10. Design your solution to scale out - not just up

Plan for success and design your systems to scale out.

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