We have used OpenText Network Node Manager i for over ten years.

I have five to six years of experience with this solution.

We have been using this solution for six years.

We've been using the product for seven or eight years. 

I've been working on this platform for more than nine years. 

I have been using the solution for seven years. 

We have been using this solution since 2002. We had Versions 6, 7.5 and upgraded to 8 and 9. We are now planning to upgrade to Version 10.

This product has been used in our company for ten years, I suppose, however, I have been personally using it only for two or three years.

Our first deployment started out earlier this year. We've been kind of up and about with NNMi probably a little more than a complete quarter. That's about the duration that we've had it operational.

I've been using this solution for three years. 

I have been using the solution for approximately 7 years.

I've been using it, let's say for four years.

Since NNM was version 4.

I have been working with it for nine years.

I have been using this solution for twenty-four years.

A year plus.