During my undergraduate studies, I published a paper and gained some experience in research. Unfortunately, I didn't take up my higher education immediately but instead worked in the software industry for 3 years straight.
At work, my nature of job did not involve any research. However, I became passionate about solving a group of problems which I encountered and discovered that there are several active fronts in research. I have decided to go back to academia and apply for a MS in CS by thesis program.
As letters of recommendation are an important component to gain the admission into a good university, I have been sceptical about getting a recommendation from someone in industry since it is for a thesis based program. Will an admission committee of a university be interested in reading a recommendation from someone from the industry or would it be advisable to get all my recommendations from my professors (it's been 3 years since they worked with me)?