Relation Module

Use case:

We are working on a project where entities are cross linked. My question is how would it be the best to store these relations.

Entities:
-person
-company
-skill
-job

Relations:
Friends:
person < - > person

CV:
person < - > skill

Working at:
person < - > company

Jobs available:
job < - > company

Skills needed for a job:
job < - > skill

Problem/Motivation

to find the best matching job (that require skills that you have) from the companies where your friends and friends-of-friends work at.

Proposed resolution

In my Drupal 7 project I have two node types:

1. Student (Roll_No,Name,Qualifcation)
2. Courses (Course_Code, Course_Name,Fees,Duration)

First I have added a number of courses - for e.g. Drupal, Magento, CakePHP..

Now I want a simple data entry form called Admission for entering student data where we should get a field "Course

Selected" as a drop-down list showing all the available courses.

I have installed the Relation module (and enabled all the submodules in the pack) and can establish relations between a

Is anyone in the area working with the Relation Module? I'm exploring using it in lieu of Entity Reference and would like to hear about your experiences, successes, failures, etc.