<prompt> Translate the following text to EnglishUtafiti wa Utekelezaji na Uonesha Matokeo ya Uwekezaji wa Teknolojia ya Habari GAO-AIMD-98-99, Machi 1998  <response>: Executive Measuring Performance and Demonstrating Results of Information Technology Investments GAOAIMD-98-89, March 1998. 