Hello Gopi,

For setting up environment, we suggest our customer to go thru the Platform support guide available on PDN.

https://collaborate.pega.com/discussion/prpc-5x-6x-platform-support-guide-easy-find

Platform support guide gives you the complete overview about the supported application server, database, O/S, Browser etc.

Other than that, we also suggest customer to follow the deployment guide while installing Pega as the deployment guides also highlights the other requirement that needs to be maintained like available memory , heap size etc.

https://collaborate.pega.com/question/deployment-guides

Last but not the least, before you start working on the project, it is advisable that you follow Pega defined project implementation methodology .

The below PDN Article will give you more idea about the same :

https://pdn.pega.com/browse/prpc-topics/implementation-methodology

https://pdn.pega.com/implementation-methodology-dco/implementation-and-methodology-overview

https://pdn.pega.com/implementation-methodology-dco/about-the-direct-capture-of-objectives-dco

Hope this helps.