1, work sort
The determination of the work Sort is involved in the identification and description of the interrelationship between each work. Any work must rely on a certain job, that is to say that its execution must only be done after some work, this is the successful relying on the work. There are two reliance on the work of the work: one is a logical relationship that does not change between work itself. Design and development. There is also an organizational relationship, which is generally determined by the manager based on the actual situation. We have to analyze on the basis of logical relationships and consider tissue relationships.
Work Sort required to determine the content:
u. The determination of the logical relationship;
u Organize relationship;
u Determination of external constraints;
u Limitations and assumptions in the actual process.
Work sorting common method:
u single school method (AON method)
u Double code method (AOA method)
Case demonstration:
2, work period estimation
The estimation of work hours is an important basic work developed by the project plan. It is directly related to the project's total work. If it is estimated too short, then the passive situation will cause a passive situation; the opposite is that it is extended throughout the period. Therefore, when it is estimated at work hours, it is estimated that the work is placed in a separate normal state in consideration of various resources, manpower, material, and financial resources. To do the downtime, it is not necessary to take care of the country.
Method for estimated construction period:
u expert judgment. Relying on the historical experience of members of the expert group.
U spectrum estimation method. Relying on historical actual data from the same type project.
Note: When the human resources have not been assigned, work hours estimate is performed, and it is generally estimated by the average resource capabilities.
Case demonstration:
3, progress arrangement
According to the decomposition of the project, find out the order of the work of each component, estimated that the time progress of the project will be arranged after the continuation of each work is estimated. Because our plans are assumed in normal circumstances, our plans are affected and restrictions on various factors, so they need to be adjusted according to these restrictions. The progress arrangement is mainly to consider our plan according to the actual situation. In addition, in progress arrangements, the milestone plan and Guanjian Path plan will be added.
Scheduling method:
u Turnover path method. Guanjian path refers to the work of 0 is 0. If it extension, it will lead to an extension of the total construction period, and special attention is required.
u mirange plan method. To better measure the progress of the project progress, set a reasonable milestone point to check the output of the phased outcome, as well as the actual progress and the deviation of the plan.
U Program Review Technology (PERT). For the time of the logical relationship and activity of the work, the least time A, the most likely time M, the maximum time B, and then calculate the desired time T of this work according to the β distribution.
u Parallel compression method. For items for limited construction, parallel processing techniques are often required to ensure that the project is completed within a limited period of time. Parallel processing is compressed, but at the same time, it will trigger the risk of human resources and quality, and consider it.
Case demonstration:
In the project's Project Gantt chart schedule, the red represents the carepower path, the green represents the milestone checkpoint, and the blue represents the non-targeted path.
