An essential element of any report is its introduction—make sure you are clear on its real purpose and contents. In a technical report, the introduction prepares the reader to read the main body of the report.
See this example of an introduction:
Chapter Attribution Information
This chapter was derived by Annemarie Hamlin, Chris Rubio, and Michele DeSilva, Central Oregon Community College, from Online Technical Writing by David McMurrey – CC: BY 4.0