when comparing web sites that sell CAD software. Just like you shop at specific grocery, clothes or hardware stores for certain reasons (price, convenience, selection, etc.), you should shop at specific online stores because they have the particular mix of features that are best for you. After all, just like not all retail stores are alike, not all online stores are alike either.

Functionality of site- the best CAD software sites are clearly organized, intuitive, and easy to navigate. You should be able to search easily by price, brand or category to quickly find the CAD software that would best fit your needs. Look for an easy and secure checkout process and clear and concise information about the software and all associated charges. The web site is a reflection of the company itself, so pay attention to the 'look and feel' of the various sites and use that as a barometer of how well the CAD software will work for you.

Selection- finding just the right CAD software for your needs is important, and there can be a significant difference in selection among CAD software sites. Make sure to visit at least three sites that sell CAD software before buying anything as it might surprise you as to how many options you have. Look for a web site that specializes in CAD software, or that sells related software.

Customer software/support- online CAD software stores should provide you with all the information you need to make an informed purchase decision, and should give you access to their customer software resources should you have additional questions. Customer service comes in a variety of forms; it might be an extensive FAQ section with a searchable knowledge base, a support form that you fill out and submit, an email address or toll-free number, a live chat session, or other tools, such as the ability to track your software online.

Warranty/returns- because you cannot simply 'return' CAD software to the store, you'll want to find out if there are any refunds available if for some reason the CAD software will not work for you. Many CAD software comes with trial versions, where you can test drive the software for a certain period of time before you have to purchase the full version.

How to find the best CAD software for you
Like any purchase, buying CAD software online requires you to balance a mix of variables. In addition to the above considerations, here are some questions to ask before buying any CAD software online:

Compatibility- what are the minimum system requirements and operating systems?
Cost- how much does the software cost initially and on a monthly basis (if applicable)?
Upgrades- are upgrades included in the pricing or paid for separately?
Licensing- how many computers can the software be installed on?