CN1247349A

CN1247349A - Indexes prediction of capital construction project and dynamic management method

Info

Publication number: CN1247349A
Application number: CN 98118937
Authority: CN
Inventors: 桑建新; 褚风香; 张新立
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-09
Filing date: 1998-09-09
Publication date: 2000-03-15

Abstract

An indexes prediction and dynamic management method for capital construction projects can be used to create a system which can use the comprehensive dynamic indexes of a capital construction project to predict and manage the engineering cost. Said system is composed of database unit and analytic prediction unit, and can analyze and calculate the price regulation indexes of more than 1000 building materials and can calculate their price change tendencies. It features tracking service and advanced prediction service. Its advantages include high calculation speed, high correctness and rapid service.

Description

Indexes prediction of capital construction project and dynamic management approach

The invention relates to capital construction project Engineering Cost Management field.

The capital construction project Cost Management is national management office to quantity consumed, the price of the required building materials of the civil engineering of capital construction project, water, warm, electricity part, and artificial work day, rating per machine per team and capital construction projects are pre-, a kind of affirmation management of final accounts price. Continuous propelling along with the deep and market economy of reforming and opening up to the outside world, although the production of building material product also is subject to the macro adjustments and controls of country, but supply channel is increasing, the price height of product does not wait, quality is uneven, and this invisible hand of market economy is more and more large on the impact of product price. The scale of capital construction increases, construction material is when supply falls short of demand, and price just significantly rises, otherwise, price drops. Price is around being worth up and down fluctuation, and price is carried on the back high value often. These factors have very large impact to the accuracy of traditional Engineering Cost Management. The calculating means that construction costs is traditional is:, then rely on " the quota appraisal originally " upper various quotas of determining according to the quantity consumed of the used building materials of engineering, artificial work day, mechanical one-shift number, calculate the final cost of capital construction projects. " the quota appraisal originally " by administrative department's establishment in three to five years once, each life cycle is very long. Its content comprises the quota that in the capital construction projects artificial, material, mechanical one-shift consumption is showed, it is the foundation of working out architectural engineering area standard schedule of unit rates and working drawing budget, carrying out project vote and final account for completed project, also being to carry out the foundation of adjusting, examining engineering cost as the architectural design scheme of selecting economical rationality and building enterprise, also is simultaneously the basis that the establishment architectural engineering enlarges quota. " the quota appraisal originally " is applicable to general industry and civilian newly-built, extension project. Consider market building price changing factor, administrative department issues a comprehensive price modification index again at an annual year terminal hour, and " quota appraisal this " finely tuned. Comprehensive price modification index is that administrative department is after the building price to the locality is investigated, analyzed, through the data that calculate.

Utilize " the quota appraisal this " Manual analysis material usage and description bother very much, in capital construction (this building of soil) engineering, calculating by its quota specific item quantity has 3550, develops into present more than 1000 by the material that uses by 660 kinds of the kinds in past and plants. That is to say, consult certain its fussy degree of quota specific item (such as armored concrete 300# Cast-in-situ Beam) and reach three one thousandths; Search the fussy degree of a material or kind, also reach 600 sixtieths to one thousandth.

The below briefly introduces definite method and the content of comprehensive price modification index. Take cement as example:

At first need cement is stocked up in the definite compass of competency quantity, label, price:

Weighted mean method is determined each producer's quantity in unit price:

Cement label title quantity unit price label

1, the cement N1 X1 * * * of F001 factory

2, the cement N2 X2 * * * of F002 factory

3, the cement N3 X3 * * * of F003 factory

4, the cement N4 X4 * * * of F004 factory

*

The cement Nn Xn * * * computing formula of n, F0On factory:

Above-mentioned is several stages that the analysis of one of them material of thousands of kinds of materials (cement) will be passed through. For accelerating speed and the computing quality of engineering budget and final account, must utilize computer to calculate. The final account of project coefficient is calculated on the project, if with original manual operations, be difficult to finish numerous workloads. Develop the coefficient software that matches with civil engineering quota software, software replacement manual calculation and browse the page number of used certain material and material price, kind, specification dosage what, only need the disposable input computer of construction budget book, desired time of capable of reminding computer, the moon, season can record index immediately.

In addition, the calculating means that construction costs is traditional is regardless of the engineering structure form, regardless of industry and civil buildings, also regardless of the unified use of enterprise's rank. The drawback of this pricing management is more: the one, and be follow-up service from start to finish, belong to afterwards service, the variation of its unpredictable future price; The 2nd, comprehensively readjust prices index issue in a year once, frequency is excessively low, can not adjust in time, exactly quota. This hysteresis service causes comprehensive price modification index to use regardless of the concrete condition of building enterprise, architectural engineering is unified, carries out shared risks, benefits-sharing, and grievous injury large and medium-sized state-owned enterprise interests are unfavorable for improving construction quality; The 3rd, what the formation of year-end issue price modification index was invested appends the heavy burden of construction unit's back; The 4th, the Investment gap that forms because of Material Price Difference behind the completion of works by being in arrears with of several years even more than ten years, being given and is built and unit in charge of construction all causes economically loss, and engineering also can't be delivered for use on schedule; In addition, quota of capital construction appraisal work is manual calculation always, and speed is slow, and accuracy rate is low, and is consuming time many, causes issue cost exponential time interval longer.

The objective of the invention is to provide a kind of indexes prediction of capital construction project dynamic management approach, it can overcome above-mentioned shortcoming effectively, the capital construction cost is implemented leading management, carry out the comprehensive dynamic index of construction project and measure and the control of construction costs prediction management microcomputer, and can provide accurate data for the international bidding of domestic large and medium-sized engineering and Kazakhstan.

The objective of the invention is to realize as follows.

Indexes prediction of capital construction project and dynamic management approach are called " the comprehensive dynamic index mensuration of construction project and construction costs prediction management system ", referred to as management system, the system core is divided into database section and analyses and prediction part. Database section should comprise three kinds of data: at first with every data category, the version of Finished engineering are recorded in respectively the storehouse over the years; Secondly, building material market price and the quantity in of per month investigation and analysis are recorded; The 3rd, the data of input " the quota appraisal is originally ". The following design of analyses and prediction part:

(1), analysis part: utilize building material market price and the quantity in this month of recording in the above-mentioned database, calculate the price modification index of 1000 multiple materials of national regulation by average weighted method.

Construction material weighted average price computing formula:

(2), predicted portions: the building material market price is around being worth up and down fluctuation, and the time of its variation--price coordinate curve changes more slow. Take year as unit, utilize every data of Finished engineering over nearly 5 years in the database section and the comprehensive price modification index over 5 years, make time--the price coordinate curve of building material market price. Utilize " statistics " in the chain rate computational methods, P1: P2=P2: Px, (P1 is the price in early stage to calculate future architecture material market price Px, P2 is the later stage price, Px is forecast price, the interval of the time interval between P1 and the P2 with P2 and Px equates, is advisable with one to 12 month). If time span is larger, can utilize the time of building material market price--the price coordinate curve is revised Px: the curve between two kinds of prices of P1, P2 is made the curvilinear motion formula, calculate more accurately the value of Px. According to the price modification index of each construction material individual event prediction, and the data of the Finished engineering over the years in the database, just can analyses and prediction go out future architecture material price situation of change and Future Projects cost.

Corresponding computer applied algorithm be can design, database and analyses and prediction part comprised. Analysis part and predicted portions are compiled into two independently unit. The curve, amplitude and the index that utilize computer to finish the assessment of indices of construction costs per month and try to achieve over the years construction material rise, fall, predict future building price situation of change, the cost of expectation target engineering. So just can utilize advanced computer technology to change the outmoded pattern of " tracking cost type " service in the in the past construction project Engineering Cost Management, carry out " advanced prediction type " method of service, realize quick, the accurate and effective Cost Management work of construction project.

The invention has the advantages that: the quota appraisal that 1, has changed traditional types decades adds composite index law, realizes that the follow-up service mode changes to advanced prediction type method of service. 2, all can carry out civil engineering, water, warm, electric installing engineering cost index measurement method in the whole year in any period, reform present year-end issue price modification index, carry out the hysteresis method of servicing of final account of project. 3, can provide in advance data, make construction unit determine construction scale, the formation of stopping chain debts according to the real economy ability to bear. 4, eliminated in the past budget spending beyond the original estimation, final accounts excess budget situation, made X (budget)=Y (budgetary estimate)=Z (final accounts). 5, utilize the chain rate computational methods, can try to achieve also over the years that construction material goes up, lower width of cloth index, the disposable cost forecasting of finishing, and can provide accurate calculated data for all industry calls for bid with civil buildings. 6, utilize advanced computer technology to carry out Engineering Cost Management, the shortcomings such as manually computing for many years speed is slow, accuracy rate is low, service hysteresis that is through with is really accomplished administrative department " rationally determine " and " effectively control ".

Figure of description proposes the computer program flow chart of " indexes prediction of capital construction project and dynamic management approach " according to the present invention.

Embodiment: indexes prediction of capital construction project and dynamic management way.

Construction material weighted average price (price modification index) computing formula:

Design corresponding computer applied algorithm, comprise database and analyses and prediction part. Analysis part and predicted portions are compiled into two independently unit. The curve, amplitude and the index that utilize computer to finish the assessment of indices of construction costs per month and try to achieve over the years construction material rise, fall, predict future building price situation of change, the cost of expectation target engineering. So just can utilize advanced computer technology to change the old model of " tracking cost type " service in the in the past construction project Engineering Cost Management, carry out " the advanced prediction type " method of service, realize quick, the accurate and effective Cost Management work of construction project.

Program is as follows:

type zscd.prg
**********************************************************
*                           ZCX                          *
**********************************************************
CLEA ALL
SET PROC TO ZSCD
SET BELL OFF
SET ECHO OFF
SET MENU OFF
SET TALK OFF
SET STATUS OFF
SET SAFETY OFF
SET ESCAPE OFF
set scor off
SET TYPE TO 2
SET CONFIRM ON
DO MENU
@ 20.1 say″F10  OUITDOS″
CLEAR TYPEAHEAD
CLOSE ALL
CLOSE PROC
RETURN
PROC MENU
SET COLOR TO 7+/1.2/0
CLEA
*********************************************************************************************
******
@3， 0 say″                                         ″
@4， 0 SAY″    ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
@7， 0 SAY″                         (2.0)″
@10，0 SAY″                                   WELCOM YOU″
@14，0 say″                         ″
@16，0 say″                            ″
@20，0 say″                         ：  
WAIT′″
******************************************#**************************************************
*******
XZZY＝SPAC(26)
SET FUNC 10 TO″DO ZSCD：″
PUBLIC xz，bm，ch
xz＝0
STORE′′TO bM，ch
CLEA
DO WHILE.T.
SELE A
USE
SELE B
USE
SELE C
				<!-- SIPO <DP n="6"> -->
				<dp n="d6"/>
USE
@ 3，0 CLEA
@ 20，50 SAY XZZY
set mess to 24
mess1＝″  ″
mess2＝″    
@ 1，1，1，79 BOX″ ″
@ 3，2 PROM″1.″
@ 3，21 prom″2.″
@ 3，36 prom″3.″
@ 3，51 PROM″4.″
@ 3，66 PROM″5.  ″
@ 4，1 say″————————————————————————————————————————————————————————————————″
@ 1，8 say mess2
@ 2，1 SAY
″＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
＝＝＝＝＝＝＝＝＝＝＝＝＝″
menu to SA
DO CASE
   CASE SA＝1
DO XGSJ
   CASE SA＝2
DO XMBJ
   CASE SA＝3
DO DY
   CASE SA＝4
DO YCL
   CASE SA＝5
QUIT
   OTHER
CLEA
EXIT
ENDCASE
ENDDO
RETURN

RETURM ********************************************************************* * XGSJ * ********************************************************************* PROCEDURE XGSJ ch＝′′ bm＝′′ ERNUM＝0 @6; 4 prom " 1. data typing "@7; 4 prom " 2. data modification "@8; 4 prom"ESC-" MENU TO AN DO CASE CASE AN＝1 DO LR CASE AN＝2 DO X OTHE CLEA RETURN ENDCASE RETURN ********************************************************************* * LR * ********************************************************************* PROCEDURE LR clear use c：gl edit CLEAR retu ********************************************************************* * X * ********************************************************************* PROC X clear use c：gl ？" " acce" （ ESC ）："to jlh go ＆jlh EDIT CLEAR RETU *********************************************************** * XMBJ * *********************************************************** PROC XMBJ @ 5,0 CLEAR。

@6; 23 PRDM " 1. project is browsed "@7; 23 PROM " 2. project increases "@8; 23 PROM"3." @ 9，23 PROM"4.ESC-" MENU TO SS DO CASE CASE SS＝1 DO LL CASE SS＝2 DO Z CASE SS＝3 DO S ENDC *************************************************** * LL ********************************************************* PROC LL use gl browse return。

*******************************************
*              Z                          *
*******************************************
proc Z
use gl
do while.t.
set talk off
？″
？″0----″
？″1----″
？″2----″
wait to fs
do case
  case fs＝″1″
？″″
？″                 ″ 
input″：″to xh
go xh
set talk on
disp
acce″？(y/n)″to jl
if jl＝″y″.or.j1＝″Y″
inse befo
endif
   case fs＝″2″
appe
   case fs＝″0″
CLEAR
return
endcase
enddo
CLEAR
retu
*******************************************
*          S                              *
*******************************************
procecdure S
@3，0 clea
use gl
do while.t.
acce″(0)：″to jlh
if jlh＝″0″
CLEAR
return
endif
go &amp;jlh.
disp
acce″(y/n)？″to sc
if sc＝″y″.or.sc＝″Y″
dele reco &amp;jlh.
pack
endif
CLEAR
retu

********************************************* * DY * ********************************************* PROCEDURE DY @ 5，0 CLEA SET COLO to 7+/1.2/0 @6,38 prom " 1. print factor table "@7,38 PROM " 2.DOS SHELL "@8,38 PROM " 3. self-compiling program interface "@9,38 PROM " ESC-returns " menu to SA4 DO CASE CASE SA4=1 DO GL CASE SA4=2 do dos retu CASE SA4=3 do cxjk retu othe clea RETURN ENDCASE retu

********************************************
*                GL                        *
********************************************
PROC GL
set talk off
acce″：″to mc
acce″：″to nf
acce″：″to ys
SET CONS OFF
？？chr(27)+″U08″
？？chr(27)+″P″
？？chr(27)+″ID″
set device to print
set print on
@ prow()+1，20 say nf picture″@r xxxx″
@ prow()，20 say″       ()″
@prow()+1，20say   ″＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝″
set print off
？？chr(22)+″I″+″A″
set print on
@ prow()+2，5 say·″：″
@ prow()，16 say mc picture″@r xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
@ prow()+1，3 say；
″----------------------------------------------------------------
-----------------″
@ prow()+1，3 say；
″        

          ″
@ prow()，36 say ys picture″@r xx″
@ prow()，56 say substr(nf，3，2)picture″@r xx″
@ prow()+1，3 say；
″----+------------+----+---------+--------+-----------+--------
----------+-------″
x＝prow()+1
use c：gl
do while.not.eof()
@ x，3 saypicture″@rxxxx″
@ x，8 saypicture″@rxxxxxxxxxxx″
@ x，21 saypicture″@rxxxx″
@ x，26 saypicture″99999.99″
@ x，35 saypicture″99999.99″
store *to1
@ x，44 say1 picture″9999999.99″
@ x，55 saypicture″99999.99″
store*to2
@ x，64 say2 picture″9999999.99″
store2/1 to
@ x，75 saypicture″999.999″
@ x，83 say″″
				<!-- SIPO <DP n="12"> -->
				<dp n="d12"/>
skip
x＝x+1
if eof()
sum *，*to z1，z2
@ prow()+1，3 say；
″----+------------+----+-----------------+-----------+--------+
----------+-------″
store prow() to x
@ x+1，3 say″″
@ prow()，8 say″″
@ prow()，21 say″″
@ prow()，26 say″″
@ prow()，35 say″″
@ prow()，44 say z1 picture″9999999.99″
@ prow()，55 say″″
@ prow()，64 say z2 picture″9999999.99″
store z2/z1 to zs
@ prow()，75 say zs picture″999.999″
@ prow()，83 say″″
@ prow()+1，3 say；
″------------------------------------------------------
-------------------″
？
else
@ x，3 say；
″----+------------+----+--------+--------+-
----------+-------″
endif
x＝x+1
enddo
set print off
set device to screen
SET CONS ON
return
				<!-- SIPO <DP n="13"> -->
				<dp n="d13"/>
***********************************************************
*                         dos                             *
***********************************************************
procedure dos
do whil.t.
clea
com＝″
@2，5 say″＝＝＝＝＝＝＝＝ESC＝＝＝＝＝＝″
@5，5 say″DOS：″get com
read
if readkey()＝12
exit
endi
if len(trim(com))＞3
！&amp;com
wait″...″
endi
endd
CLEAR
return
***********************************************************
*                       cxjk                              *
***********************************************************
procedure cxjk
mm＝space(8)
@14，20 say″：″get mm
read
if readkey()＝12
return
endi
mm＝trim(mm)
mm1＝mm+′.prg′
mm2＝mm+′.fox′
if file(mm1).or.file(mm2)
do &amp;mm
else
@16，20 say″！″
wait″...″
@14，20 clea to 21.80
return
endi
clea
return

************************************************** * YCL * ************************************************** PROC YCL @5，0 clea @6,53 prom " 1. initialize "@7,53 prom " 2. change library structure "@8,53 prom " ESC-returns " menu to sa6 do case case sa6=1 do csh case sa6=2 do XGK other clea return endc return * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * csh * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * proc csh set safe off@4,0 CLEA@10,10 SAY " initialize, please wait a moment ... " use GL L=0 RE2LACE ALL material usage WTTH L RETU * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * XGK * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * PROC XGK CLEAR USE GL MODI STRU RETU

C：\FOX＞type gll.prg
set talk off
acce″：″to mc
set cons off
？？chr(27)+″U08″
？？chr(27)+″P″
？chr(27)+″I″+″B″
set device to print
set print on
@ prow()+1，35 say″″
@ prow()+1，35 say″------------------------------″
set print off
？？chr(22)+″I″+″A″
set print on
@ prow()+2，5 say″：″
@ prow()，16 say mc picture″@r xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx″
@ prow()+1，3 say；
″--------------------------------------------------------
---------------------------------------------------″
@ prow()+1，3 say；
″  9393  
94   95  96   ″
@ prow()+1，3 say；
″----+------------+----+--------+--------+--------+-------
+----------+--------+--------+-------+--------+------″
x＝prow()+1
use gll
do while.not.eof()
@ x，3 saypicture″@r xxxx″
@ x，8 saypicture″@r xxxxxxxxxxx″
@ x，21saypicture″@r xxxx″
@ x，26 saypicture″99999.99″
@ x，35 saypicture″99999.99″
store*to1
@ x，44 say93 picture″99999.99″
store*93 to2
store2/1 to1
@ x，53 say1 picture″999.999″
@ x，61 say94 picture″99999.99″
store*94 to3
store3/2 to2
@ x，70 say2 picture″999.999″
@ x，78 say95 picture″99999.99″
store*95 to4
store4/3 to3
@ x，87 say3 picture″999.999″
@ x，95 say96 picture″99999.99″
store*96 to5
store5/4 to4
@ x，104 say4 picture″999.999″
@ x，112 say″″
				<!-- SIPO <DP n="16"> -->
				<dp n="d16"/>
skip
x＝x+1
if eof()
sum *，*93，*94，；
*95，*96 to z1，z2，z3，z4，z5
@ prow()+1，3 say；
″----+------------+----+--------+--------+----------------+------
--+-------+--------+-------+--------+-------″
store prow()to x
@ x+1，3 say″″
@ prow()，8 say″″
@ prow()，21 say″″
@ prow()，26 say″″
@ prow()，35 say″″
@ prow()，44 say″″
store z2/z1 to zs1
@ prow()，53 say zs1 picture″999.999″
@ prow()，61say″″
store z3/z2 to zs2
@ prow()，70 say zs2 picture″999.999″
@ prow()，78 say″″
store z4/z3 to zs3
@ prow()，87 say zs3 picture″999.999″
@ prow()，95 say″″
store z5/z4 to zs4
@ prow()，104 say zs4 picture″999.999″
@ prow()，112 say″″
@ prow()+1，3 say；
″--------------------------------------------------------------
-----------------------------------------″
？
else
@ x，3 say；
″----+------------+----+--------+--------+--------+-------+
--------+-------+--------+-------+--------+-------″
ehdif
x＝x+1
enddo
set print off
set device to screen
set cons on
return
				<!-- SIPO <DP n="17"> -->
				<dp n="d17"/>
C：\FOX＞type gl.pre
set talk off
acce″：″to mc
acce″：″to nf
？？chr(27)+″U08″
？？chr(27)+″P″
？？chr(27)+″I″+″B″
set device to print
set print on
@ prow()+1，30 nf picture″@r xxxx″
@ prow()，30 say″  ()″
@ prow()+1，30 say″＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝″
set print off
？？chr(22)+″I″+″A″
set print on
@ prow()+2，5 say″：″
@ prow()，16 say mc picture″@r xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx″
@ prow()+1，3 say；
″-------------------------------------------------------------
-------------------------------------″
@ prow()+1，3 say；
″      93   96

           ″
@ prow()+1，3 say；
″----+--------+--------------------+----+--------+--------+----------+--------+
----------+-------″
x＝prow()+1
use c：gl
do while.not.eof()
@ x，3 saypicture″@r xxxx″
@ x，8 sayPICTURE″@r xxxxxxxx″
@ x，17 saypicture″@r xxxxxxxxxxxxxxxxxxxx″
@ x，38 saypicture″@r xxxx″
@ x，43 saypicture″99999.99″
@ x，52 saypicture″99999.99″
store*to1
@ x，61 say1 picture″9999999.99″
@ x，72 saypicture″99999.99″
store*to2
@ x，81 say2 picture″9999999.99″
store2/1 to
@ x，92 saypicture″999.999″
@ x.100 say″″
				<!-- SIPO <DP n="18"> -->
				<dp n="d18"/>
skip
x＝x+1
if eof()
sum*，*to z1，z2
@ prow()+1，3 say；
″----+--------+--------------------+----+--------+--------+----------+--------+
------------------+---------″
store prow()to x
@x+1，3 say″″
@ prow()，8 say″″
@ prow()，17 say″″
@ prow()，38 say″″
@ prow()，43 say″″
@ prow()，52 say″″
@ prow()，61say z1 picture″9999999.99″
@ prow()，72 say″″
@ prow()，81 say z2 picture″9999999.99″
store z2/z1 to zs
@ prow()，92 say zs picture″999.999″
@ prow()，100 say″″
@ prow()+1，3 say；
″-----------------------------------------------------------------
---------------------------------″
？
else
@ x，3 say；
″----+--------+--------------------+----+--------+--------+----------+--------+
------------------+------------″
endif
x＝x+1
enddo
set print off
set device to screen
CLEAR
return

Claims

1, indexes prediction of capital construction project and dynamic management approach, be called " the comprehensive dynamic index of construction project is measured and construction costs prediction management system ", it comprises analysis part, namely utilize investigation and analysis building material market price and the quantity in next this month, calculate the price modification index of 1,000 multiple materials of national regulation by average weighted method, it is characterized in that it also comprises database section and the predicted portions that jointly forms the system core with analysis part. Database section comprises three kinds of data: at first being every data of Finished engineering category, version record over the years, secondly is building material market price and the quantity in of investigating and analysing per month, the 3rd, and every data of " quota appraisal this "; Predicted portions is the chain rate computational methods of utilizing in " statistics ", P1: P2=P2: Px, (P1 is the price in early stage to calculate future architecture material market price Px, P2 is the later stage price, Px is forecast price, the interval of the time interval between P1 and the P2 with P2 and Px equates, be advisable with one to 12 month), if time span is larger, can utilize the time of building material market price--the price coordinate curve is revised Px: the curve between two kinds of prices of P1, P2 is made the curvilinear motion formula, calculate more accurately the value of Px. According to the price modification index of each construction material individual event prediction and the data of the Finished engineering over the years in the database, just can analyses and prediction go out future architecture material price situation of change and Future Projects cost.