I was working in a company as a business analyst trainee. When I went at client site, I used MS Word to report problems in the software and enhancements .

I had to quit that company for some reason.

Now when I go for the business analyst interview,  what I observed is , some interviewer make faces when I tell them that I used MS WORD.

So, I just want to know , is there any specific software for the same ? ( Not for diagrams though).

 Jira is a good one.

Kimbo