The methods of schedule adjustment are:
1, Key Date Schedule
This is the simplest kind of schedule, which only lists some key activities and the dates they will be carried out.
2, Gantt chart
Also called a line or crosswalk chart, as shown in Figure 3. It is a horizontal line to indicate the start and end time of each activity. Gantt chart has the advantage of simplicity, clarity, intuition, easy to prepare, so far is still a common tool in small projects. Even in large projects, it is a useful tool for senior management to understand the big picture and for scheduling at the grassroots level.
In the Gantt chart, you can see the start and end time of each activity. When plotting the start and end times of activities, their sequence is also taken into account. However, the relationship between the activities is not represented, and the key areas that affect the life cycle of the project are not indicated. Therefore, the Gantt chart is not adequate for complex projects.
3, Program Review Technique
Program Review Technique (PERT). CPM and PERT are two planning methods that appeared almost simultaneously in the late 50s.
With the rapid development of science and technology and production, there are many large and complex scientific research and engineering projects, they have a variety of processes, a wide range of collaboration, often requiring the use of a large number of human, material and financial resources.
Therefore, how to rationally and effectively organize them, so that they coordinate with each other, under the limited resources, the shortest possible time and the lowest cost, the best completion of the entire project has become a prominent and important issue.
Expanded Information:
In accordance with the sequence of the different phases of the project, it is divided into the following plans:
1. Project implementation plan
Based on the owner's given time for the major milestones (commencement of construction, completion, commissioning, and start-up), and based on its own resources in all aspects of the design, procurement, construction, etc., the contractor will comprehensively consider the The overall implementation plan is formulated based on the domestic and international situation as well as the social and economic conditions of the country where the project is located.
The plan specifies the schedule for the relocation of personnel and equipment, construction of camps, transportation of equipment and materials, commencement of construction, main construction, completion of machinery, trial operation, commissioning and handover.
2, detailed implementation plan (target plan)
Schedule plan submitted by the contractor to the engineer some time after the award (usually one month). The plan is built on the basis of the project implementation plan, according to the list of project design documents proposed by the design department and the list of equipment and materials purchased;
And the construction department of the project proposed by the construction deployment, the development of a detailed work breakdown, and then according to the principle of the construction network technology, according to the tightly followed by the completion of the process of compilation. The plan in the engineer's approval that constitutes the official target plan to be implemented.
3, detailed implementation plan (update plan)
In the implementation of the target plan, through the implementation of the process of tracking and checking, to find out the actual progress and the planned progress of the deviation between the analysis of the reasons for the deviation and find a solution.
If the original target plan cannot be completed, then the original plan must be revised to form an updated plan. The updated plan is based on the actual situation of the target plan for the adjustment, the approval of the updated plan will mean that the target plan in the logical relationship, the work period, the owner of the supply time and other aspects of the revised plan approval.
Baidu Encyclopedia-Progress Plan
Baidu Encyclopedia-Project Progress Plan