Prepare the call for papers (wording, layout etc.), Establish a deadline for paper submission, Publicize the call for papers (via a website, email, regular mail, journals etc.), Find reviewers and establish their area of expertise. Accept paper submissions (via web site submission, email, regular mail, fax). Send out confirmations of receipt of paper submission.
Assign reviewers to each paper. Circulate the papers to each reviewer. Follow up with reviewers to ensure they are on track. Collect reviewer comments. Make the final paper selections. Notify authors of acceptance or rejection. Prepare accepted papers for publication. Send papers to publisher for print. Publish the papers online. Follow-up corrections/publications/full papers after the conference.