4D BIM: Get effective information on time and develop functional schedules Development of construction schedules is not a totally new concept in building process, but over the years there have been drastic changes into their functionality which is majorly due to the advancement of technology. In other words development of construction schedules always prevailed for construction projects, but their authenticity, validity and effectiveness could be questioned, since high end technology that can measure and interpret information effectively was missing. But with the emergence and adoption of Building Information Modeling, all the major challenges concerning scheduling are effectively tackled by design and construction professionals. BIM enabled the development of digital models which are always very accurate and informative. The addition of new dimension to 3D which is time, allowed AEC professionals to develop effective construction schedules. BIM modeling services have the capacity to provide architects, engineers, contractors, owners and fabricators etc a plethora of information which can tackle all kinds of construction problems in the design phase itself. Effective schedules developed with the assistance of 4D modeling services can help building professionals in project planning and construction. Since schedules provide crucial data related to actual construction activities such as beginning and accomplishing dates of various construction modules, contractors and other key building professionals can successfully prepare for day today activities. Preparing for day today activities means effective arrangement of materials, resources and equipments on right time in the actual location which can help in making the final process obstacle free. 4D BIM modeling also assists construction professionals in developing construction simulations which show complete details about the actual execution of the process in the proposed location and it can assist them in taking effective project decisions. All those activities which can cause hindrances to the project can be controlled by taking effective decisions during early design phase. When project decisions are taken during preconstruction stage building owners don’t have to spend any extra amount of money for controlling project outcomes. But if changes are made onsite project cost can increase drastically. Last but not least with the assistance of construction schedules, AEC professionals get to know all the details about project completion.