How To create security role in dynamics 365?

In dynamics 365, security hierocracy is similar to AX 2012  as shown below

you can assign multiple roles for a user and every role contain multiple duties and privileges..etc

Now, we will create a role from scratch

Create project in visual studio and select Dynamics 365 template

select unified operation and assign a name for your project

just add a new item \ security\security privilege

privilege contain multiple securable objects like forms, SSRS report, class,..etc

So, we will create a new entry point

 I will create security for custtablelistpage (All Customers Form)

as shown below we have multiple types for object

1-menu item display: for forms 

2-menu item output: for Reports

3-menu item action: for classes

4-service operation: for services 

set access level as you need (unset -no access -read -update-create-correct-delete) 

as the same, we will create a new duty 

add you privileges to your duty 

As the same, create new role,

note: you can add any  role as a sub role , also you can add privileges and duties to your role

 build your solution and deploy

finally, go to users form and edit your user to assign the new role.