We did evaluate other options but I was not a part of the evaluation phase. We picked this product to work as part of a suite with CA Release Automation.

I looked at other solutions from other companies. At that time, CA was not ready with its solution. Luckily, we were stuck in the decision-making process with budgeting, etc. Then, CA came out with the early CDD. It was quite promising so they put a lot of effort into being on time. They came out with a first version which fit our initial purposes. That's why we went to CDD. 

It was very lightweight to install. Other tools needed a lot of expertise and infrastructure. But now, other tools are known in the market. I think we made the right choice but those competitors also make strong arguments to be present in big enterprises. Again, it is not the tool which makes the Agile way of working work, it is the people using the tools.

We looked at solutions from IBM, Microsoft and, recently, solutions from the company that created XL Release. It is interesting, but for me, it is still the same as CDD.

Micro Focus Release Control (formerly Serena Release Control), Microsoft Team Foundation Server, and IBM UrbanCode Release.