Cấu trúc phân rã công việc (WBS) nâng cao (FWBS+PCWBS)

Cấu trúc phân rã công việc (WBS) có 2 thành phần là PCWBS và FWWBS. Người đọc sẽ có những khái niệm và định nghĩa đầy đủ về Cấu trúc phân rã công việc WBS để có thêm kiến thức trong việc tạo lập các ma trận, xây dựng và quản lý tiến độ thi công.

What is WBS

(Work Breakdown Structure)?

 To classify the resources necessary to execute

Project in order to properly control Project

 To systematically define the ALL activities(scopes)

of Project

 To break down all activities with MECE(mutually

What is WBS

(Work Breakdown Structure)?

 WBS is the technique of Project control, but not

special and not new

 WBS technique is breaking the work

 WBS technique is to discrimination and

understanding of all activities

What is WBS

(Purpose of WBS technique)?

 Effective operation of Project execution/ control

Define each Activity for PJ

Define all required up stream information

Type of WBS in JGC

(PLANT Engineering Business)

(Functional WBS)

 Definition of Work (Activity)

and Cost by Function

 Universal Coding system

within JGC Group

(Project Control WBS)

 Geographical Plant Area Breakdown

Project to achieve effective and efficient PJ control.

WBS Technique

Discrimination of work

WBS :Discrimination of work

PCWBS vs FWBS

FWBS CODE in JGC

 JGC’s FWBS Code is specified in JGS

 To use JGS, you are requested to read and

confirm the SECRECY DECLARATION

- SECRECY DECLARATION –

(JGS)

You agree to the following terms and conditions

whenever access and use JGS

1 You shall acknowledge that JGS contain highly confidential

information and intellectual properties.

2 You shall disclose JGS only to personnel who need to know them

to the works instructed and/ or approved by JGC

3 You shall not make any use of JGS for any other purpose than that of execution of the works instructed and/or approved JGC

What is FWBS CODE in JGC

CODE Structure

1 2 3 4 5 6 7 8

Supplementary Code

( 2 alphanumeric characters) Sub-code (4 alphanumeric characters) Prime-code (2 alphanumeric characters)

FWBS Sample (Level-1)

FWBS Sample (Level-2)

<For FWBS 10>

FWBS Sample (Level-3)

13X: Detail Engineering

21X: Direct Materials

31X: Direct Labor Work

Where X=

1:Civil General

2:Concrete Structure

3:Steel Structure

4:Buildding

5:Equipment

7:Instrumentation 8:Electrical

9:Insulation A: Painting B: Fireproof & Surface Protection

PC-WBS Sample

Plot

Area 32

FURNACE COMPRESSOR

SHELL & TUBE HEAT EXCHANGER

VESSEL

PIPE RACK

PUMP AIR FIN COOLER

VESSEL

VESSEL

Area 10

Area 20

Common: 00

Area 31

How to decide PC-WBS?

Control objectives

 Type of Project

 Type of Plant

 Process Unit? Utility?

Control Service

 Client

 Division

 Discipline Lead Engineer

 Time

 Cost

How to decide PC-WBS?

LEVEL 1

LEVEL 2

LEVEL 3

WORK PACKAGE

W.P NO.

SCOPE OF WORK RESPONSIBILITY Work Volume Resource SCHEDULE COST PROGRESS

PLAN FORECAST ACTUAL

Resource

• Time

• COST

• Man Power

• Deliverables

• Materials

• Construction Equipment

PC-WBS

Work Framing Example

( P C - W B S ) 0 0

1 0 2 0 3 0 ( F - W B S ) 1 1 1 2 2 0 3 1 3 2

S T R U C T U R E E R E C T I O N 3 1 3 *

E Q U I P M E N T E R E C T I O N 3 1 5

T O W E R E R E C T I O N 3 1 5 1 *

F U R N A C E E R E C T I O N 3 1 5 6 *

C O M P R E S S O R E R E C T I O N 3 1 5 8 *

O T H E R E Q U I P E R E C T I O N 3 1 5 9 * * *

S H O P F A B R I C A T I O N 3 1 6 1 * * * * *

F I E L D I N S T A L L A T I O N 3 1 6 2 * * * * *

Concept of Numbering(Coding)

PC - WBS F - WBS Seq.No Type

PC - WBS F - WBS Seq.No.

Type

R

PC - WBS F - WBS Suffix

Schedule Activity No.

PC - WBS F - WBS

WORK PACKAGE NO.

PC - WBS F - WBS

Cost Account No.

Purchase Order No.

BOM/BOQ Data ID