T-type cover letter is best used when the job opening give detailed requirements and qualifications, such as college degree, number of years experience on specific tools and languages, professional certifications. If your background matches most of the requirements or even exceeds desired quantities, then T-type is perfect.
Don't use T-type cover letter if there is no detailed requirement list, or your qualification doesn't match well, or you are over qualified.
T-Type Cover Letter Sample
Dear Hiring Manager:|
I am writing to submit the application for the position of Senior Programmer Analyst in your organization.
Currently I am working as a software developer and consultant for an IT service firm to design and develop client/server and web-based applications and provide technical supports. As illustrated in the form below, my experience and qualifications match or exceed your requirements for this position:
I believe my experience, hard work, and dedication would let me provide the best service in this position. I look forward to an interview to discuss with you in detail about how I could make contributions to your organization.
Thank you for your consideration.