I'm assuming that you have a SAS account manager. Where I live, SAS offer a free requirements assessment service which you can arrange with your SAS account manager. I suggest you ask about this. You will need to define your business needs, what type of analyses you require, how much data is involved and how you access it.
Without doing your business requirements assessment there is no way you can decide what SAS software is necessary and how it should be architected. SAS can scale from just a single PC installation all the way up to a multiple server installation that can have hundreds of users. The assessment will enable you to decide what SAS solution(s) will meet your needs. You should also engage with the IT people in your organisation who are familiar with software procurement to help with this.
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