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management personnel in the premise of quality

已有 97 次阅读 2013-04-25 13:10 标签: Robe Cocktail pas cher

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project cost management is a prerequisite to meet the quality, time limit for a project contract requirements, the project costs, achieve the predetermined cost goal through the planning, organization, control and coordination of activities, and minimize the cost of a scientific management activities.Modern project cost management of the scope of business is no longer limited to generate plans and progress reports, management personnel in the premise of quality, cost soldes louboutin 2011, schedule must meet requirements of the times, facing a series of unexpected problems, the main control factors of project management is the quality, schedule and cost.The goal of project management is to guarantee the quality of the situation, to find the optimal solution for schedule and cost ed hardy femme pas cher.

cost and schedule control is the main goal of the project management, the past is their management, lack of close contact with each other, it brings a lot of problems.For example, when the project to a certain stage, only the actual costs compared with the total budget, misleading, as long as the actual cost is lower than the total cost budget is satisfactory, but the actual amount of work already completed by (schedule) did not achieve the planned quantity.Had already surpassed to the project budget and remaining work to finish, to complete the project must have more cost, time to plan to complete the project within budget, cost control is too late.This shows that the actual cost and the project cost is only a side, and can't reflect the real situation of project cost control.

Between the cost and schedule of project

has very close connection.Cost of capital consumption, size and progress of speed in advance or delay, there is a direct relationship between the robe de Soir?e.Generally speaking, the project cost is proportional to the progress of the project.But just watch cost size cannot estimate of cost trends, progress made completely accurate and effective.Ahead of schedule, delay or cost overruns, savings will affect the size of the cost.Therefore, to effectively control costs, must be continuous supervision and consumption amount of money on the project and to compare with the progress of the work.This paper discussed the method of comprehensive control for cost, schedule -- the earned value method.

two, earned value analysis method

The basic principle of

project cost management and control is based on a predetermined project cost plan and control the implementation benchmark, after work converse discount, regular comparative analysis All Star Converse pas cher, and then adjust the work plan and implementation plan to go back to.To effectively carry out the project cost and schedule management is key to monitor actual cost and schedule status, timely, regular and control as compared to the benchmark, and combined with other possible change, to take the necessary corrective measures, modify or update the project plan, predict the project completed cost budget, schedule will advance or backward.The whole process of this monitoring must throughout the project.

is a point in time in the course of the project, only monitoring plan cost and actual cost can not judge whether investment because of cost overruns or savings, consumption of large reason may be ahead of schedule, it may be because the cost within budget; and vice versa.Therefore, it is necessary to introduce the earned value analysis, cost of project progress status and effectively monitor.

earned value analysis (Earned Valued, referred to as "EV") is the actual completion of work and budget cost, which is the actual budget cost of work performed to obtain the.It is a comprehensive measure of project schedule, cost of the overall method, its basic element is measured by the quantity of money instead of physical quantity of project schedule, progress to reflect the project it not to invest money, but the money has been transformed into the project quantity is measured, is a complete and effective project monitoring method.

earned value analysis method using three basic values to represent the state of implementation of the project, which can be used to predict the project may be the completion time and completed the likely costs, three basic value is:

plan cost (PV): up to the current date, budgeted cost of work scheduled BCWS; actual cost of
II (AC): to date, actual cost actual work has been completed;
the earned value (EV): to date, budgeted cost of work performed corresponding ceinture dolce gabbana.

earned value analysis method using two different value index and two index to measure the project cost, schedule, performance and status:

1, earned value analysis method -- 2 difference value index

cost deviation (CV): completed work is over budget or below budget.
CV = EV, AC, namely: earned value is subtracted from the actual cost of
II schedule variance (SV): a comparison of PV and EV size, the schedule is ahead or lag.
SV = EV, PV, namely: earned value minus the cost of

plan

2, earned value analysis method -- 2 index

the cost performance index (CPI): each spending a monetary unit value brought by
CPI = EV / AC
the schedule performance index (SPI): between EV and PV ratio
SPI = EV / PV
two difference value index, the two index in the actual project cost management meaning:
cost deviation ----CV=EV-AC is less than 0 that overruns
progress deviation is less than 0
----SV=EV-PV said the delay cost performance index ----CPI=EV/AC is less than 1 overruns
schedule performance index ----SPI=EV/PV is less than 1 lag

in project cost management, the traditional approach is only compare the actual cost and project cost, and neglected the relationship between cost and schedule, as the actual cost is lower than the planned cost, is considered to be satisfactory.In the example above (above hypothesis for a project earned value analysis diagram), when the project to sixth months when the actual cost than low cost 180000 yuan, the project is considered to be satisfactory, do not need to take corrective measures, can continue to operate.If we consider the factors described above, the use of earned value method:

analysis

cost deviation (CV) = earned value (EV) - actual cost (AC) = - 120000 yuan
the schedule variance (SV) = earned value (EV) - plan cost (PV) = - 300000 yuan
the cost performance index (CPI) of =EV / AC = 90 / 102 = 0.88
the schedule performance index (SPI) of =EV / PV = 90 / 120 = 0.75

through the two difference value calculation index, the two index, the project in sixth months, the cost of the project has been overrun, project progress has lagged, should take timely corrective measures.Compared with the traditional approach, the result is different, the traditional approach will lead to wrong conclusions and decisions, which will remind us of the project cost management, to fully consider the relationship between the cost and schedule of project cost management, analysis application of earned.

three and ending

earned value analysis is an effective method of project cost management.Through the analysis of real-time monitoring on PV, AC, EV, CV, SV, CPI, SPI and other indexes and parameters, status and trends can accurately grasp the project cost, schedule, and take corrective measures to make the project control in the standard range.The key of effective cost control project is as long as the discovery of cost, schedule variance and low efficiency will actively work on solving it, rather than with the project and all will be well, the earlier proposed, impact on the whole project and the impact is smaller.

Development of

of modern computer information technology provides conditions for the realization of the project cost management.Joint management of the implementation of the project cost and schedule, the basic requirements of data values in the process of the project instant access to the above several parameters, the use of computer information technology of the network schedule plan and budget of project organically.In project cost management, modern scientific management method is extended, and the use of advanced information technology, is very necessary, will bring a great benefit.

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