WHAT ARE THE LESSONS LEARNED FROM SCHEDULING FOR A 3-STORY MECHANICAL PENTHOUSE WITH THE TOOL MOST COMMONLY USED TO PLAN THE PROJECT STEP BY STEP. BECAUSE OF THE INCREASED COMPLEXITY IN ENGINEERING & CONSTRUCTION TECHNIQUES AND MATERIALS, AS WELL AS DIVERSE LABOR ISSUES AND THE PRESSURES OF CONTROL BUDGETS, SCHEDULING HAS INCREASINGLY BEEN ONE OF THE STANDARD CONTROL METHODS IN ENGINEERING AND CONSTDUCTION. A CONTROL SCHEDULE WILL BE PREPARED FOR THE PROJECT ESTIMATED AND WITH CHANGE ORDER INVOLVED