Difference Between Rightsizing And Downsizing

i want to discuss full in detail the terms downsizing and rightsizing n also the effects of it on organization/

Then, please give your views to generate the discussion. Please check CiteHr and the web to understand the differences.
Have a nice day.
Simhan
A retired academic in UK.

Dear Nashbramhall,
I am an Industrial engineering student and i am taking Human Resuorces Management lesson. I will make a presentation about downsizing and whats the role of human resources during downsizing operation. I am looking all the related websites,books but until now i couldnt get a result. So i hope you can help me.
The thing especially i need is an example which was done by any company.
I am looking forward to hearing from you.
I wish you a good day.