Draft table of contents of your final report. Detailed schedule, including target defense date. Status of the work at the present time. Many students are working in the computing field, and their work provides them with an opportunity to do projects that are comparable to the MS Project or Thesis, and they would like that work at their employment to qualify. This type of thing is possible, and there is some precedent for doing it.
Students can even have an advisor at their place of employment.
In addition, the report, and a significant portion of the other work products, must be made available for other students to read in the future. The committee might ask for some other programming or writing to be done that is outside of the requirements of the employer. It is your responsibility to assure that your employer's requirements for confidentiality are respected. Faculty committee members can sign non-disclosure agreements, if necessary, and come to the student's place of work for a demonstration. Alternatively, you could write a research paper that complements the work you did.