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Task ID: 1k2MIN_-S_y1n6a-Ew8BtA_qLOP-KFBXKDwDOdQmbD1g

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https://docs.google.com/document/d/1k2MIN_-S_y1n6a-Ew8BtA_qLOP-KFBXKDwDOdQmbD1g/edit

REQUIREMENTS

You need to design a programming module PERMISSIONS that would allow Caller to Grant a permission to a user Check if a user has a particular permission Caller is an external system that uses our module (particularly it calls our API). Permission is a user right to take an action or access a resource. Permissions for resource access can be READ or WRITE. For example, Caller can grant a permission ”reboot the server” (an example of action) OR write to a file “C:/readme.txt” (an example of resource) to a user Andrew. Caller can grant permissions directly to a user OR via roles. If Caller wants to grant permissions via roles then Caller needs to register a role, grant permissions to the role and then assign the role to a user. Caller can assign many roles to a user. As a note, our module (you are designing) doesn’t provide any dictionaries to Caller. All objects (including Users) are created / managed by Caller. Our module provides ONLY functionality.

OUTCOME

NOTE: You don’t have to strictly use a specific programming language for the exercise. You can use just a meta syntax that would give us an idea of your solution - we’re not going to compile it for sure :). We would expect you to write module API (a list of functions with parameters) and design a database for the module. A list of functions can look like this (this is ONLY an example and companies and employees have nothing to do with this exercise):

function AddEmployee(company, first_name, last_name, age): boolean;
function AddJob(company, first_name, last_name, age): boolean;
function IsEmployeeFired(employeeId): boolean;
...

If you want to pass an object as a parameter you can describe an object separately:

Class Company {
  String name;
  String address;
  Integer taxId;
}

Database design can be presented as a list of tables with most important fields (no need to define indexes, etc). For example,

Table Companies {
  Id,
  Name,
  Address,
  TaxId
}

Table Employees {
  Id,
  CompanyId, // this is a foreign key to Company
  FirstName,
  LastName,
  Job
}

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