CN106779607A - The method and system of software project cost estimation are realized based on computer software - Google Patents

The method and system of software project cost estimation are realized based on computer software Download PDF

Info

Publication number
CN106779607A
CN106779607A CN201611197107.5A CN201611197107A CN106779607A CN 106779607 A CN106779607 A CN 106779607A CN 201611197107 A CN201611197107 A CN 201611197107A CN 106779607 A CN106779607 A CN 106779607A
Authority
CN
China
Prior art keywords
estimation
workload
result
estimated
cost
Prior art date
Application number
CN201611197107.5A
Other languages
Chinese (zh)
Inventor
王云明
Original Assignee
上海爱韦讯信息技术股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海爱韦讯信息技术股份有限公司 filed Critical 上海爱韦讯信息技术股份有限公司
Priority to CN201611197107.5A priority Critical patent/CN106779607A/en
Publication of CN106779607A publication Critical patent/CN106779607A/en

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/10Office automation, e.g. computer aided management of electronic mail or groupware; Time management, e.g. calendars, reminders, meetings or time accounting
    • G06Q10/103Workflow collaboration or project management

Abstract

The present invention relates to a kind of method that software project cost estimation is realized based on computer software, comprise the following steps:(1) attribute is operated by Delphi method to estimate;(2) the result amount of the being operated estimation estimated according to working attributes;(3) result estimated according to workload carries out cost estimation, also including a kind of system that software project cost estimation is realized based on computer software, including working attributes estimation block, for being operated attribute estimation;Workload estimation block, for the result amount of the being operated estimation estimated according to working attributes;Cost estimation module, the result for being estimated according to workload carries out cost estimation.The method and system in the invention are employed, comprehensively, workload estimation result is accurate for estimation coefficient;Data are transmitted automatically, and system is calculated automatically;Automatic management estimated data, it is time saving accurate;Estimation work product is automatically generated, time source is saved, is with a wide range of applications.

Description

The method and system of software project cost estimation are realized based on computer software

Technical field

The present invention relates to program estimation technical field, more particularly to software project cost estimating techniques field, specifically refer to A kind of method and system that software project cost estimation is realized based on computer software.

Background technology

In project management, software project estimation is the core place of software project management, can just be drawn by estimation soft The plan of part project, and the foundation as software project controlling.One successful project has first had to a rational project meter Draw, and a rational project plan, it be unable to do without an accurate, credible, objective program estimation.

The purpose of software project estimation is for software project formulates a budget, for supporting item Executive Team personnel The distribution of reasonable arrangement project schedule plan and guide item specific works, so as to allow project to be carried out under controllable state, while For follow-up software quality provides contrasting foundation, the experience that problem present in project is become reconciled therefrom is found out, promote holding for enterprise It is continuous to improve.

Software project estimation is mainly including Quantity customizing, workload estimation, project cost estimation, calculation of natural resources etc..

1st, Quantity customizing

The key step of existing Delphi (Delphi method, expert's established procedure investigation method) Quantity customizing includes:Really Surely object is estimated, is assigned estimation tasks, is estimated respectively, collect unified estimation, determine estimation result, as shown in Figure 1:

1) estimation object is determined:

This estimation object that assessor identifies project according to the actual conditions of project, e.g. module, document is still needed Ask;

2) estimation tasks are assigned:

Estimation object (A, B, C, D ...) is distributed to many individuals and estimated respectively by estimation director;

3) each assessor estimates respectively:

Each assessor each estimated respectively, draws estimation result, and is transmitted to estimation director, such as:

A:{a1、a2、a3、a4……}

B:{b1、b2、b3、b4……}

C:{c1、c2、c3、c4…….}。

4) unification collects estimation:

Estimation director's unification collects estimation result and calculates the mathematical mean conduct of the estimation result of each estimation object Final estimation result A=AVERAGE (a1, a2, a3, a4), B=... .., C=... ...

5) estimation result is determined:

Estimation director compares estimation result, if there is estimation result to exceed worst error allowed band i.e., a1-A>Maximum is by mistake Difference scope, then can carry out re-starting estimation;If no, estimation terminates.Manual sorting this estimation data, draw scale Estimation result, generally in forms such as thousand code lines, demand numbers.

2nd, workload estimation

The key step of work on hand amount estimation includes:Obtain the Quantity customizing result of estimation object, determine estimation difficulty Productivity ratio etc., determination are managed, support ratio, amount of calculation estimation result shared by class workload type, such as per capita for coefficient, determination Shown in Fig. 2:

1) the Quantity customizing result of estimation object is obtained:

Manual delivery obtains above-mentioned Quantity customizing result;

2) estimation degree-of-difficulty factor is determined:

It is determined that the degree-of-difficulty factor value of estimation object, influences follow-up workload estimation;

3) productivity ratio per capita is determined:

Productivity ratio per capita according to tissue determines the productivity ratio per capita of this project;

4) determine that class workload type institute accounting is supported in management, paper:

Actual conditions according to project determine management, support ratio shared by class workload type, and for example support class is technology The 30% of workload, management class is the 40% of technical work amount.

5) amount of calculation estimation result:

Usually using equation below:

The productivity ratio of the technical work amount=∑ Quantity customizing result × degree-of-difficulty factor of object (estimation)/per capita,

Management workload=technical work amount × ratio shared by management workload,

Support works amount=technical work amount × ratio shared by support workload,

Project work amount=Project Technical workload+Project Management amount+project support works amount,

The workload estimation result of project is calculated, generally with man day, man-year or in the form of the man month.

3rd, cost estimation

The key step of existing cost estimation includes:Workload estimation result is obtained, working unit amount cost is determined, is calculated Cost estimation result, as shown in Figure 3:

1) workload estimation result is obtained:

Manual delivery obtains above-mentioned workload estimation result;

2) working unit amount cost is determined:

Productivity ratio per capita according to tissue determines the working unit amount cost of this project;

3) cost estimation result is calculated:

Usually using formula:The cost of cost estimation result=workload estimation result × working unit amount,

Cost estimation result is calculated, generally in the form of unit.

4th, the data transfer of software estimation

The data transfer flow of existing software estimation as shown in figure 4, Quantity customizing in software estimation, workload estimation, into This estimation is not usually a group of people, by estimating that expert carries out Quantity customizing, is then carried out by project leader or Executive Team The estimation of workload and cost.After Quantity customizing terminates, by the result papery transmission amount of the being operated estimation of Quantity customizing;Work After amount estimation result, the transmission of workload estimation result papery is carried out into cost estimation.If a middle link mistake in computation, by weight New biography delivery data, re-evaluates, if for example Quantity customizing result there are errors in computation, Quantity customizing will be re-started, then carry out work Work amount is estimated, then carries out cost estimation.

5th, software estimated data management

The data management basic procedure of existing software estimation is as shown in figure 5, generally use this labor management, papery document Manage the mode of data, the data that neither one system or device unified management software are estimated, including Delphi estimation algorithms Quantity customizing intermediate data, Quantity customizing result;Workload estimation process data, estimation result;Cost estimation process data, estimate Calculate result;Estimation finishes software project estimation table of rear output etc..

6th, software project estimation table

Existing software project estimation table write flow as shown in fig. 6, software estimation terminate after, estimator manually will rule Mould estimation result, evaluation method, workload estimation result, project cost estimation result etc. are arranged and are written as software project estimation Table, as the output of achievement.

Existing estimating techniques, have the shortcomings that following:

1st, estimation coefficient is not comprehensive, and workload estimation result is inaccurate.

In existing workload estimation, a degree-of-difficulty factor is only taken into account, but in actual items, influence workload estimation Result, being far above a degree-of-difficulty factor, the complexity of demand, reusing degree of code etc. can all influence the estimation knot of workload Really.

2nd, data transfer is slow, it is impossible to automatic to calculate

In existing software estimation, during Delphi Quantity customizings, assign and collect, including repeatedly assign and collect, wherein Data be handoff calculate.When the result of Quantity customizing passes to workload estimation, workload estimation result is passed into (see Fig. 4) during this estimation, estimated data is handoff, if there is mistake, need to again transmit and recalculate.Due to estimation not It is that a group of people is carried out, so can wastes the substantial amounts of time during data are transmitted.

During Quantity customizing, after each assessor provides estimation result, it should can collect automatically draw average value and compare to Go out prompting, without manually going to collect whether multilevel iudge needs to re-evaluate.Workload is entered based on Quantity customizing result Row estimation, cost is estimated based on workload estimation result, Quantity customizing result out after, workload estimation is estimated with cost Can automatically carry out at last, quickly draw estimation result, but present handoff estimation cannot be realized.Therefore one is needed The efficient automatic estimating system for calculating of data interaction transmission.

3rd, labor management data, take fallibility

Existing software estimated data management relies primarily on artificial, papery management estimated data, estimates related data, if It is the project of multi-configuration, then data can be more, labor management estimated data, need to expend substantial amounts of human resources and time, and Easily error, influences operating efficiency and work quality.

4th, manual compiling software project estimation table, takes time and effort

, it is necessary to export formal software project estimation table after the completion of program estimation, the data in software project estimation table are The result of program estimation (Quantity customizing, workload estimation, cost estimation and calculation of natural resources).Since program estimation work is complete Into data genaration should be obtained automatically from estimation process and estimation result.But, it is necessary to artificial handle in existing estimating techniques Estimation result is written as software project estimation table, waste of manpower resource and time again.

The content of the invention

The purpose of the present invention is the shortcoming for overcoming above-mentioned prior art, there is provided one kind can be by computer software system The method and system that the software project cost realized of uniting is estimated.

To achieve these goals, the method that software project cost estimation is realized based on computer software of the invention And system is as follows:

This realizes the method for software project cost estimation based on computer software, comprises the following steps:

(1) attribute is operated by Delphi method to estimate;

(2) the result amount of the being operated estimation estimated according to working attributes;

(3) result estimated according to workload carries out cost estimation.

It is preferred that described step (1) is comprised the following steps:

(1-1) estimation director sets up the estimation tasks of working attributes, sets the essential information of estimation, and described is estimated The essential information import system of calculation;

(1-2) estimation director determines estimation object, and by described estimation object import system;

Estimation tasks are assigned to each assessor by (1-3) system;

(1-4) each assessor performs respective estimation tasks, provides estimation result;

(1-5) estimates that director collects estimation result unification;

(1-6) system-computed respectively estimates the average value of the estimation result of object, and the average value is estimated as working attributes The result of calculation.

More preferably, the essential information of described estimation includes estimation title, estimation description, assessor, estimation date, maximum Tolerance rate and working attributes unit.

More preferably, described estimation object includes module, document, demand and activity.

More preferably, it is further comprising the steps of between described step (1-5) and step (1-6):

(1-5-1) system-computed each estimation object each assessor estimation result average value as estimation result;

Whether (1-5-2) system judges estimation result that the estimation result provides with each assessor beyond maximum allowable Deviation, if it is, prompting estimation director;

(1-5-3) estimation director organizes each assessor to carry out subsequent passes estimation, and estimation result is filled in again, when respectively estimating When calculating the estimation result of object entry all without departing from the deviation range for allowing, working attributes estimation is completed.

It is preferred that described step (2) is comprised the following steps:

(2-1) estimates coefficient according to the actual conditions setting option purpose of project;

(2-2), according to workload distributed constant come estimated work, described workload distributed constant is different types of It is operated in proportion in whole workload;

(2-3) adjusts the productivity ratio per capita of this project according to the productivity ratio per capita of tissue;

(2-4) is according to the estimation result of working attributes, estimation coefficient and the estimation of the workload distributed constant amount of being operated.

More preferably, described estimation coefficient includes degree-of-difficulty factor, complexity factor and multiplexing coefficient.

More preferably, described workload distributed constant is operated in proportion in whole workload for different types of.

More preferably, described step (2-2) is further comprising the steps of:

(2-2-1) creates workload distributed architecture tree, and workload distribution is filled in described workload distributed architecture tree Essential information;

(2-2-2) sets workload distributed constant according to project experiences;

(2-2-3) sets the workload distribution cost rate of each workload distribution, described workload distribution cost rate It refer to the cost needed for single workload.

More preferably, described (2-4) is further comprising the steps of:

(2-4-1) is estimated according to the below equation amount of being operated:

Workload estimation result=∑ Quantity customizing result × degree-of-difficulty factor × complexity factor × (1- reuses coefficient)/ Productivity ratio/workload distribution benchmark;

Workload distribution benchmark=distribution of ∑ Engineering workload/(∑ Engineering workload distribution+∑ manages class workload Distribution);

(2-4-2) system is decomposed according to estimation object to workload, is specifically estimated the workload of object, is gone forward side by side One step is decomposed according to the type of workload;

(2-4-3) estimator adjusts the correction factor of the workload of estimation object according to the actual conditions of project, or carefully Change the workload of the Engineering workload distribution of adjustment estimation object, with the result that the workload for adjusting estimation object is estimated;

The result of the workload estimation of the estimation object after adjustment is collected and obtains final workload by (2-4-4) system Estimation result, and according to the workload after workload distribution displaying primary work amount and refinement adjustment.

Further, the correction factor of the workload of described adjustment estimation object estimates the workload of object to adjust The result of estimation, specially:

The result that workload after below equation calculates adjustment is estimated:

Result × the correction factor of the result of the workload estimation after adjustment=unadjusted workload estimation.

It is preferred that described step (3) is comprised the following steps:

The cost rate of each workload distribution pattern of (3-1) system in workload distribution setting and workload estimation Result, the workload cost of each workload distribution pattern is calculated and shown by below equation, and collect and obtain resulting cost The result of estimation:

Cost=∑ (workload of each distribution pattern × cost rate);

The result of result, the result of workload estimation and cost estimation that (3-2) system is estimated according to working attributes, generation Software estimates table.

Also include it is a kind of for realize the above method based on computer software realize software project cost estimation System, including:

Working attributes estimation block, estimates for being operated attribute by Delphi method;

Workload estimation block, for the result amount of the being operated estimation estimated according to working attributes;

Cost estimation module, the result for being estimated according to workload carries out cost estimation.

It is preferred that described working attributes estimation block also includes:

Estimation tasks dispatch unit, for estimation tasks to be assigned into each assessor;

Estimation result collection unit, the average value of the estimation result for calculating each estimation object, and the average value is made It is the result of working attributes estimation.

It is preferred that described workload estimation block also includes:

Workload evaluation unit, enters for the estimation result according to working attributes, estimation coefficient and workload distributed constant Row workload is estimated;

Workload resolving cell, for being decomposed to workload according to estimation object, is specifically estimated the work of object Measure, and further the type according to workload is decomposed;

Workload estimation result collection unit, for the result of the workload estimation of the estimation object after adjustment, collects To final workload estimation result, and according to the workload after workload distribution displaying primary work amount and refinement adjustment.

It is preferred that described cost estimation module also includes:

Cost calculation unit, for the cost rate and work of each workload distribution pattern in workload distribution setting Work amount estimation result, calculate and show the workload cost of each workload distribution pattern, and collect obtain resulting cost estimation Result;

Software estimates table generation unit, for result, the result of workload estimation and the cost estimated according to working attributes The result of estimation, generation software estimation table.

The method and system that software project cost estimation is realized based on computer software in the invention are employed, is estimated Calculate coefficient comprehensively, workload estimation result is accurate;Data are transmitted automatically, and system is calculated automatically;Automatic management estimated data, it is time saving Accurately;Estimation work product is automatically generated, time source is saved, is with a wide range of applications.

Brief description of the drawings

Fig. 1 is the schematic diagram of the Quantity customizing basic step of prior art.

Fig. 2 estimates the schematic diagram of basic step for the workload of prior art.

Fig. 3 is the schematic diagram of the basic procedure of the cost estimation of prior art.

The schematic diagram of the data transfer that Fig. 4 is estimated for the software of prior art.

The schematic diagram that Fig. 5 is managed for the software estimated data of prior art.

Fig. 6 writes the schematic diagram of flow for the software project estimation table of prior art.

Fig. 7 is that the flow chart of the method that software project cost estimation is realized based on computer software of the invention is illustrated Figure.

Fig. 8 is that the working attributes of the method that software project cost estimation is realized based on computer software of the invention are estimated The flow chart of calculation.

Fig. 9 is the workload estimation of the method that software project cost estimation is realized based on computer software of the invention Flow chart.

Specific embodiment

In order to more clearly describe technology contents of the invention, carried out with reference to specific embodiment further Description.

This realizes the method for software project cost estimation based on computer software, comprises the following steps:

(1) attribute is operated by Delphi method to estimate;

(2) the result amount of the being operated estimation estimated according to working attributes;

(3) result estimated according to workload carries out cost estimation.

In a kind of preferably implementation method, described step (1) is comprised the following steps:

(1-1) estimation director sets up the estimation tasks of working attributes, sets the essential information of estimation, and described is estimated The essential information import system of calculation;

(1-2) estimation director determines estimation object, and by described estimation object import system;

Estimation tasks are assigned to each assessor by (1-3) system;

(1-4) each assessor performs respective estimation tasks, provides estimation result;

(1-5) estimates that director collects estimation result unification;

(1-6) system-computed respectively estimates the average value of the estimation result of object, and the average value is estimated as working attributes The result of calculation.

In a kind of more preferably implementation method, the essential information of described estimation includes estimation title, estimation description, estimation People, estimation date, maximum allowable offset rate and working attributes unit.

In a kind of more preferably implementation method, described estimation object includes module, document, demand and activity.

It is further comprising the steps of between described step (1-5) and step (1-6) in a kind of more preferably implementation method:

(1-5-1) system-computed each estimation object each assessor estimation result average value as estimation result;

Whether (1-5-2) system judges estimation result that the estimation result provides with each assessor beyond maximum allowable Deviation, if it is, prompting estimation director;

(1-5-3) estimation director organizes each assessor to carry out subsequent passes estimation, and estimation result is filled in again, when respectively estimating When calculating the estimation result of object entry all without departing from the deviation range for allowing, working attributes estimation is completed.

In a kind of preferably implementation method, described step (2) is comprised the following steps:

(2-1) estimates coefficient according to the actual conditions setting option purpose of project;

(2-2), according to workload distributed constant come estimated work, described workload distributed constant is different types of It is operated in proportion in whole workload;

(2-3) adjusts the productivity ratio per capita of this project according to the productivity ratio per capita of tissue;

(2-4) is according to the estimation result of working attributes, estimation coefficient and the estimation of the workload distributed constant amount of being operated.

In a kind of more preferably implementation method, described estimation coefficient includes degree-of-difficulty factor, complexity factor and multiplexing system Number.

In a kind of more preferably implementation method, described workload distributed constant is operated in whole work for different types of Proportion in amount.

In a kind of more preferably implementation method, described step (2-2) is further comprising the steps of:

(2-2-1) creates workload distributed architecture tree, and workload distribution is filled in described workload distributed architecture tree Essential information;

(2-2-2) sets workload distributed constant according to project experiences;

(2-2-3) sets the workload distribution cost rate of each workload distribution, described workload distribution cost rate It refer to the cost needed for single workload.

In a kind of more preferably implementation method, described (2-4) is further comprising the steps of:

(2-4-1) is estimated according to the below equation amount of being operated:

Workload estimation result=∑ Quantity customizing result × degree-of-difficulty factor × complexity factor × (1- reuses coefficient)/ Productivity ratio/workload distribution benchmark;

Workload distribution benchmark=distribution of ∑ Engineering workload/(∑ Engineering workload distribution+∑ manages class workload Distribution);

(2-4-2) system is decomposed according to estimation object to workload, is specifically estimated the workload of object, is gone forward side by side One step is decomposed according to the type of workload;

(2-4-3) estimator adjusts the correction factor of the workload of estimation object according to the actual conditions of project, or carefully Change the workload of the Engineering workload distribution of adjustment estimation object, with the result that the workload for adjusting estimation object is estimated;

The result of the workload estimation of the estimation object after adjustment is collected and obtains final workload by (2-4-4) system Estimation result, and according to the workload after workload distribution displaying primary work amount and refinement adjustment.

In a kind of further embodiment, described adjustment estimates the correction factor of the workload of object to adjust The result of the workload estimation of object is estimated, specially:

The result that workload after below equation calculates adjustment is estimated:

Result × the correction factor of the result of the workload estimation after adjustment=unadjusted workload estimation.

In a kind of preferably implementation method, described step (3) is comprised the following steps:

The cost rate of each workload distribution pattern of (3-1) system in workload distribution setting and workload estimation Result, the workload cost of each workload distribution pattern is calculated and shown by below equation, and collect and obtain resulting cost The result of estimation:

Cost=∑ (workload of each distribution pattern × cost rate);

The result of result, the result of workload estimation and cost estimation that (3-2) system is estimated according to working attributes, generation Software estimates table.

Also include it is a kind of for realize the above method based on computer software realize software project cost estimation System, including:

Working attributes estimation block, estimates for being operated attribute by Delphi method;

Workload estimation block, for the result amount of the being operated estimation estimated according to working attributes;

Cost estimation module, the result for being estimated according to workload carries out cost estimation.

A kind of it is preferred that described working attributes estimation block also includes:

Estimation tasks dispatch unit, for estimation tasks to be assigned into each assessor;

Estimation result collection unit, the average value of the estimation result for calculating each estimation object, and the average value is made It is the result of working attributes estimation.

In a kind of preferably implementation method, described workload estimation block also includes:

Workload evaluation unit, enters for the estimation result according to working attributes, estimation coefficient and workload distributed constant Row workload is estimated;

Workload resolving cell, for being decomposed to workload according to estimation object, is specifically estimated the work of object Measure, and further the type according to workload is decomposed;

Workload estimation result collection unit, for the result of the workload estimation of the estimation object after adjustment, collects To final workload estimation result, and according to the workload after workload distribution displaying primary work amount and refinement adjustment.

In a kind of preferably implementation method, described cost estimation module also includes:

Cost calculation unit, for the cost rate and work of each workload distribution pattern in workload distribution setting Work amount estimation result, calculate and show the workload cost of each workload distribution pattern, and collect obtain resulting cost estimation Result;

Software estimates table generation unit, for result, the result of workload estimation and the cost estimated according to working attributes The result of estimation, generation software estimation table.

In a specific embodiment, come real it is an object of the invention to provide a kind of working attributes evaluation method and device Existing software estimation, three kind estimations of the present invention comprising software estimation:Based on Delphi working attributes estimation, based on working attributes The workload estimation of estimation and the job costs estimation based on workload estimation.

1st, the working attributes estimation based on Delphi

Working attributes estimation is most crucial, most basic estimation in software estimation.Quantity customizing is the basis of all estimations, Be can directly determine and influence work come amount estimation and job costs estimate, its working attributes estimation basic procedure as shown in fig. 7, Including:

1) working attributes estimation is set up

Software project estimation director sets up the estimation tasks of this working attributes, sets the essential information of this estimation, Including estimation title, estimation description, assessor, estimation date, maximum allowable offset rate, working attributes unit etc., system can be certainly It is dynamic to record these information.

2) estimation object is imported

Before working attributes estimation, program estimation personnel first have to determine the object of this estimation, i.e., come using what Estimated.Working attributes evaluation method proposed by the present invention, it is main to include four kinds of estimation objects:Module, document, demand, work It is dynamic.It is determined that after estimation object, program estimation personnel import estimation object, the automatic estimation object for recording importing of the present invention is Follow-up working attributes estimation is prepared.For example:Import modul estimates the code line of each module as this estimation object Number.

3) estimation tasks are assigned

After this estimation tasks are distributed to assessor by software project estimation director, system is automatically for each assessor drives Move out of respective estimation execution task.

4) individual estimates respectively

Each estimation participant performs personal estimation execution task, provides estimation result.

5) unification collects estimation

A) estimation director convenes assessor to unify to collect estimation;

B) system calculates the average value of the estimation result of each assessor of each estimation object as estimation result automatically;

C) system compare automatically estimation result that estimation result and each director be given whether beyond it is maximum allowable partially Difference, if exceeding, automatic prompting estimation director, the opinion that estimation director can herein collect each assessor is readjusted and estimated Calculation value or reorganization next round estimation are re-evaluated.

6) estimation result is determined

When all estimating that the estimation result deviation of object is all in allowed band, you can complete this working attributes and estimate Calculate, system calculates the average value of the estimation result of each estimation object automatically, used as the estimation result that this working attributes is estimated.

2nd, based on working attributes estimation workload estimation, its workload estimation flow chart as shown in figure 8, including:

1) estimation coefficient is determined

Generally, the actual conditions tight association of the result of estimation and software.3 program estimation parameters are included in the present invention, It is respectively degree-of-difficulty factor, complexity factor, multiplexing coefficient, the actual conditions of project is reflected with this three parameters.Item visual estimation Calculation personnel estimate parameter value according to the actual conditions setting option purpose of project, and the workload estimation that the setting influence of the value is follow-up is tied Really.

2) determine that workload is distributed

Workload estimation based on working attributes of the invention is come estimated work by workload distributed constant.Workload Distributed constant refers to that various types of workloads are distributed, including Engineering, management the class proportion in the distribution of whole workload. The workload for being easy to each type by project experiences is organized to be distributed proportion, and it is relatively more directly perceived.Therefore by workload point It is more meaningful for project that cloth parameter carrys out estimated work.

A) workload distributed architecture tree is created, the essential information of workload distribution is filled in;

B) the workload distributed constant that each workload is distributed is set according to project experiences.Workload distributed constant refers to work Amount is distributed in proportion in the distribution of whole workload, in units of percentage, be the estimation of follow-up work amount basis it One;

C) the workload distribution cost rate of each workload distribution is set.Workload distribution cost rate refers to single work Cost needed for amount, is the foundation of after-cost's estimation in units of unit/man day.

After setting completed, the information of the automatic minute book project work amount distribution of system, is the estimation of follow-up work amount and cost Estimation provides foundation.

3) identify project productivity ratio

Productivity ratio per capita according to tissue adjusts the productivity ratio per capita of this project.

4) show that workload is estimated

Workload estimation based on working attributes estimation of the invention is the estimation result based on working attributes, estimation coefficient Estimated work is carried out with workload distribution.

The computing formula of workload of the invention estimation is:

Workload estimation result=∑ Quantity customizing result × degree-of-difficulty factor × complexity factor × (1- reuses coefficient)/ Productivity ratio/workload distribution benchmark;

Workload distribution benchmark=distribution of ∑ Engineering workload/(∑ Engineering workload distribution+∑ manages class workload Distribution);

System calculates the estimation result of workload automatically according to above-mentioned computing formula:

A) system can be decomposed to Engineering Task amount automatically according to estimation object, specifically be estimated the engineering work of object Measure, and further can be decomposed by Engineering workload type.

B) estimator can be according to the estimation result of the Engineering Task amount of the actual conditions of project adjustment estimation object, can The correction factor of the Engineering Task amount of adjustment estimation object, the estimation result=estimation result of the Engineering Task amount after adjustment × repair The workload of the Engineering workload distribution of object is estimated in positive coefficient, or refinement adjustment.

C) system can collect and obtain final work automatically according to the estimation result of the Engineering Task amount of the estimation object of adjustment Work amount estimation result, and can automatically by the workload after workload distribution pattern displaying primary work amount and refinement adjustment.

3rd, the cost estimation based on workload estimation

Cost estimation based on workload estimation of the invention is estimation result and workload point based on workload estimation Cloth rate carries out estimated cost.

1) cost estimation

System sets the cost rate of each workload distribution pattern for centering, workload and estimates automatically according to workload distribution The result of calculation, calculates and shows the corresponding cost of workload of each workload distribution pattern, and collects automatically and obtain resulting cost and estimate Calculate result:

Cost=∑ (workload of each distribution pattern × cost rate).

2) automatic generating software estimation table

System obtains the data such as above-mentioned working attributes estimation result, workload estimation result, cost estimation result automatically, Generation software estimation table.

Employ the method and system that software project cost estimation is realized based on computer software in the invention, tool Have the following advantages:

1st, comprehensively, workload estimation result is accurate for estimation coefficient

In workload estimation of the invention, estimation coefficient increased complexity factor and multiplexing coefficient, estimate coefficient comprehensively, Meet more project demands, workload estimation result is accurate.

2nd, data are transmitted automatically, and system is calculated automatically

In working attributes estimation of the invention, assessor need to only fill in corresponding estimated data during personal estimation respectively, unite One when collecting estimation, and system calculates the mathematical mean of the estimation result of each assessor of each estimation object and automatic automatically Compare.When workload of the invention is estimated, after Quantity customizing is finished, the result that system reads Quantity customizing automatically carrys out evaluation work The estimation result of amount, system sets cost rate, the work that each workload for centering distinguishes type automatically according to workload distribution Work amount estimation result, calculates each workload and distinguishes the corresponding cost of workload of type, and collects automatically and obtain resulting cost estimation As a result.

3rd, estimated data is managed automatically, it is time saving accurate

In working attributes estimation of the invention, system records estimation object automatically, and when performing estimation, system automatically estimate by record Calculate the estimation result of object, and writing task attribute estimation result, the data of estimation all can one by one be recorded and be managed, this In the workload estimation of invention, the information of the automatic writing task amount distribution of system, and work of the record by workload respectively automatically The related data of estimation is measured, when job costs of the invention are estimated, the estimated data of the automatic writing task cost of system saves Substantial amounts of time and human resources, also reduce error rate.

4th, estimation work product is automatically generated, time source is saved

System obtains the data such as working attributes estimation result, workload estimation result, cost estimation result automatically, generates soft Part estimates table, without manually writing arrangement again, saves substantial amounts of time and human resources.

In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative And it is nonrestrictive.

Claims (16)

1. it is a kind of that the method that software project cost is estimated is realized based on computer software, it is characterised in that described method Comprise the following steps:
(1) attribute is operated by Delphi method to estimate;
(2) the result amount of the being operated estimation estimated according to working attributes;
(3) result estimated according to workload carries out cost estimation.
2. it is according to claim 1 that the method that software project cost is estimated, its feature are realized based on computer software It is that described step (1) is comprised the following steps:
(1-1) estimation director sets up the estimation tasks of working attributes, sets the essential information of estimation, and by described estimation Essential information import system;
(1-2) estimation director determines estimation object, and by described estimation object import system;
Estimation tasks are assigned to each assessor by (1-3) system;
(1-4) each assessor performs respective estimation tasks, provides estimation result;
(1-5) estimates that director collects estimation result unification;
(1-6) system-computed respectively estimates the average value of the estimation result of object, and the average value is estimated as working attributes As a result.
3. it is according to claim 2 that the method that software project cost is estimated, its feature are realized based on computer software It is that the essential information of described estimation includes estimation title, estimation description, assessor, estimation date, maximum allowable offset rate With working attributes unit.
4. it is according to claim 2 that the method that software project cost is estimated, its feature are realized based on computer software It is that described estimation object includes module, document, demand and activity.
5. it is according to claim 2 that the method that software project cost is estimated, its feature are realized based on computer software It is, it is further comprising the steps of between described step (1-5) and step (1-6):
(1-5-1) system-computed each estimation object each assessor estimation result average value as estimation result;
(1-5-2) system judge estimation result that the estimation result and each assessor be given whether beyond it is maximum allowable partially Difference, if it is, prompting estimation director;
(1-5-3) estimation director organizes each assessor to carry out subsequent passes estimation, and estimation result is filled in again, when each estimation is right As entry estimation result all without departing from allow deviation range when, working attributes estimation complete.
6. it is according to claim 1 that the method that software project cost is estimated, its feature are realized based on computer software It is that described step (2) is comprised the following steps:
(2-1) estimates coefficient according to the actual conditions setting option purpose of project;
(2-2), according to workload distributed constant come estimated work, described workload distributed constant is different types of work The proportion in whole workload;
(2-3) adjusts the productivity ratio per capita of this project according to the productivity ratio per capita of tissue;
(2-4) is according to the estimation result of working attributes, estimation coefficient and the estimation of the workload distributed constant amount of being operated.
7. it is according to claim 6 that the method that software project cost is estimated, its feature are realized based on computer software It is that described estimation coefficient includes degree-of-difficulty factor, complexity factor and multiplexing coefficient.
8. it is according to claim 6 that the method that software project cost is estimated, its feature are realized based on computer software It is that described workload distributed constant is operated in proportion in whole workload for different types of.
9. it is according to claim 6 that the method that software project cost is estimated, its feature are realized based on computer software It is that described step (2-2) is further comprising the steps of:
(2-2-1) creates workload distributed architecture tree, and the base of workload distribution is filled in described workload distributed architecture tree This information;
(2-2-2) sets workload distributed constant according to project experiences;
(2-2-3) sets the workload distribution cost rate of each workload distribution, and described workload distribution cost rate refers to Cost needed for single workload.
10. it is according to claim 6 that the method that software project cost is estimated, its feature are realized based on computer software It is that described (2-4) is further comprising the steps of:
(2-4-1) is estimated according to the below equation amount of being operated:
Workload estimation result=∑ Quantity customizing result × degree-of-difficulty factor × complexity factor × (1- reuses coefficient)/production Rate/workload distribution benchmark;
Workload distribution benchmark=∑ Engineering workload distribution/(∑ Engineering workload distribution+∑ management class workload point Cloth);
(2-4-2) system is decomposed according to estimation object to workload, is specifically estimated the workload of object, and further Type according to workload is decomposed;
According to the actual conditions of project, the correction factor of the workload of object is estimated in adjustment to (2-4-3) estimator, or refinement is adjusted The workload of the Engineering workload distribution of whole estimation object, with the result that the workload for adjusting estimation object is estimated;
The result of the workload estimation of the estimation object after adjustment is collected and obtains final workload estimation by (2-4-4) system As a result, and according to the workload after workload distribution displaying primary work amount and refinement adjustment.
11. methods that software project cost estimation is realized based on computer software according to claim 10, it is special Levy and be, described adjustment estimates the correction factor of the workload of object to adjust the result that the workload of estimation object is estimated, Specially:
The result that workload after below equation calculates adjustment is estimated:
Result × the correction factor of the result of the workload estimation after adjustment=unadjusted workload estimation.
12. methods that software project cost estimation is realized based on computer software according to claim 1, its feature It is that described step (3) is comprised the following steps:
The knot that the cost rate and workload of each workload distribution pattern of (3-1) system in workload distribution setting are estimated Really, calculated by below equation and show the workload cost of each workload distribution pattern, and collect obtain resulting cost estimation Result:
Cost=∑ (workload of each distribution pattern × cost rate);
The result of result, the result of workload estimation and cost estimation that (3-2) system is estimated according to working attributes, generates software Estimation table.
13. a kind of realize that software project cost is estimated for realize the method described in claim 1 based on computer software The system of calculation, it is characterised in that described system includes:
Working attributes estimation block, estimates for being operated attribute by Delphi method;
Workload estimation block, for the result amount of the being operated estimation estimated according to working attributes;
Cost estimation module, the result for being estimated according to workload carries out cost estimation.
14. systems that software project cost estimation is realized based on computer software according to claim 13, it is special Levy and be, described working attributes estimation block also includes:
Estimation tasks dispatch unit, for estimation tasks to be assigned into each assessor;
Estimation result collection unit, the average value of the estimation result for calculating each estimation object, and using the average value as work Make the result of attribute estimation.
15. systems that software project cost estimation is realized based on computer software according to claim 13, it is special Levy and be, described workload estimation block also includes:
Workload evaluation unit, work is carried out for the estimation result according to working attributes, estimation coefficient and workload distributed constant Work amount is estimated;
Workload resolving cell, for being decomposed to workload according to estimation object, is specifically estimated the workload of object, And further the type according to workload is decomposed;
Workload estimation result collection unit, for the result of the workload estimation of the estimation object after adjustment, collects and obtains most Whole workload estimation result, and according to the workload after workload distribution displaying primary work amount and refinement adjustment.
16. systems that software project cost estimation is realized based on computer software according to claim 13, it is special Levy and be, described cost estimation module also includes:
Cost calculation unit, for the cost rate and workload of each workload distribution pattern in workload distribution setting The result of estimation, calculates and shows the workload cost of each workload distribution pattern, and collects the knot for obtaining resulting cost estimation Really;
Software estimates table generation unit, for result, the result of workload estimation and the cost estimation estimated according to working attributes Result, generation software estimation table.
CN201611197107.5A 2016-12-22 2016-12-22 The method and system of software project cost estimation are realized based on computer software CN106779607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611197107.5A CN106779607A (en) 2016-12-22 2016-12-22 The method and system of software project cost estimation are realized based on computer software

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611197107.5A CN106779607A (en) 2016-12-22 2016-12-22 The method and system of software project cost estimation are realized based on computer software

Publications (1)

Publication Number Publication Date
CN106779607A true CN106779607A (en) 2017-05-31

Family

ID=58899291

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611197107.5A CN106779607A (en) 2016-12-22 2016-12-22 The method and system of software project cost estimation are realized based on computer software

Country Status (1)

Country Link
CN (1) CN106779607A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109146250A (en) * 2018-07-24 2019-01-04 武汉空心科技有限公司 Task exploitation delivery method and system based on page metering
CN109214770A (en) * 2018-07-24 2019-01-15 武汉空心科技有限公司 Development approach, platform and system based on design original text metering
CN109214645A (en) * 2018-07-24 2019-01-15 武汉空心科技有限公司 Development approach and system based on module metering
CN109255516A (en) * 2018-07-24 2019-01-22 武汉空心科技有限公司 Task development approach and system based on unit time distribution
CN109255515A (en) * 2018-07-24 2019-01-22 武汉空心科技有限公司 A kind of task exploitation cloud platform based on page metering and unit time distribution
CN109657985A (en) * 2018-12-19 2019-04-19 东软集团股份有限公司 A kind of project plan generation method, device and storage equipment, program product

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104732307A (en) * 2013-12-18 2015-06-24 北京神州泰岳软件股份有限公司 Project workload acquisition method and system
CN105976082A (en) * 2016-04-21 2016-09-28 裴克铭管理咨询(上海)有限公司 Workload estimation mechanism for company management

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104732307A (en) * 2013-12-18 2015-06-24 北京神州泰岳软件股份有限公司 Project workload acquisition method and system
CN105976082A (en) * 2016-04-21 2016-09-28 裴克铭管理咨询(上海)有限公司 Workload estimation mechanism for company management

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109146250A (en) * 2018-07-24 2019-01-04 武汉空心科技有限公司 Task exploitation delivery method and system based on page metering
CN109214770A (en) * 2018-07-24 2019-01-15 武汉空心科技有限公司 Development approach, platform and system based on design original text metering
CN109214645A (en) * 2018-07-24 2019-01-15 武汉空心科技有限公司 Development approach and system based on module metering
CN109255516A (en) * 2018-07-24 2019-01-22 武汉空心科技有限公司 Task development approach and system based on unit time distribution
CN109255515A (en) * 2018-07-24 2019-01-22 武汉空心科技有限公司 A kind of task exploitation cloud platform based on page metering and unit time distribution
CN109657985A (en) * 2018-12-19 2019-04-19 东软集团股份有限公司 A kind of project plan generation method, device and storage equipment, program product

Similar Documents

Publication Publication Date Title
Sjøberg et al. Quantifying the effect of using kanban versus scrum: A case study
Cao et al. A case study approach for developing a project performance evaluation system
Nasirzadeh et al. Dynamic modeling of labor productivity in construction projects
Myers et al. A comprehensive model for assessing the quality and productivity of the information systems function: toward a theory for information systems assessment
Dzamashvili Fogelström et al. The impact of agile principles on market‐driven software product development
Raz et al. A critical look at critical chain project management
Laryea et al. Risk and price in the bidding process of contractors
US7020619B2 (en) Method, system, and computer software program product for analyzing the efficiency of a complex process
Capra et al. An empirical study on the relationship between software design quality, development effort and governance in open source projects
Schreyer et al. OECD capital services estimates: Methodology and a first set of results
Jones et al. Teams, incentive pay, and productive efficiency: evidence from a food-processing plant
US8464263B2 (en) Scheduling work requests to performing centers based on overall cost and duration of multiple assignment options
Oyetunji et al. Relative effectiveness of project delivery and contract strategies
Mo The role of lean in the application of information technology to manufacturing
US7664664B2 (en) Methods and systems for portfolio planning
Ali et al. Involvement of key design participants in refurbishment design process
EP1939729A1 (en) Software development production management system, computer program, and recording medium
Sangster et al. ERP implementations and their impact upon management accountants
Tzortzopoulos et al. Considerations on application of lean construction principles to design management
Ilieva et al. Analyses of an agile methodology implementation
CN101403964B (en) Integration type software configuration management method based on transaction management
US20070288283A1 (en) Method for project management
Cheng et al. Construction management process reengineering: Organizational human resource planning for multiple projects
Olugbode et al. The effect of information systems on firm performance and profitability using a case-study approach
Deif et al. Cost performance dynamics in lean production leveling

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170531