I work at a remote site for a multinational company. I am doing a software implementation that is having some major user experience issues due to very poor network performance. Our load times are so bad that we can't roll anything out for fear of complete lack of adoption.
After a long battle we have a project in the works for getting this issue resolved. One thing that came up today was the definition of success for this project. Presently it takes 190 seconds to download a 10MB file through SAP and all stakeholders agree that is unacceptable. A different remote site of similar size and function takes 10.5 seconds to download, all stakeholders agree that is better than acceptable.
There has been some debate on where the lines between acceptable/marginal/unacceptable should be set. How do you decide on what your minimum expectations are for system response? Are there any good external resources for making these decisions?