If you need to explain why something is or is not successful, or will be or will not be successful, you will need to fill in a cost benefit analysis template. The cost benefit analysis will find and add together all the positive factors, which are benefits. It will also identify and subtract the negative factors, or the costs. A template can be downloaded at
. http://articles.techrepublic.com.com/5100-10878_11-5032544.html. This site includes the template, how to download it and how to put together all your data.