Project Breakdown Structure Creation

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© ABB AB, Corporate Research - 1 13/05/16

Project Breakdown Structure Creation



Project Planning Course Overview Project Planning Overview

© ABB AB, Corporate Research - 2

Work Breakdown Structure

Logical Network Plan

Product Anatomy

Estimation

Resource Planning

Organic Integration Plan

Facilitating Processes

Time Schedule

Budgeting

Project Planning Result

Project Planning Pre-conditions

Project Breakdown Structure

Integration Plan

Risk Management



© ABB AB, Corporate Research - 3

Purpose 

The Project Breakdown Structure (PBS) defines all Work Products, produced by a project.



The purpose is to first focus on what the project shall produce, not the activities to perform.

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Input & Output 



INPUT 

Product Requirements Specification



Project Breakdown Structure from earlier versions of the product and previous projects, if available



Know-how from experienced personnel



Architecture



Organizational Demands

OUTPUT

© ABB AB, Corporate Research - 4





Project Breakdown Structure including; 

Technical Product Breakdown Structure



Management Product Breakdown Structure



Quality Product Breakdown Structure

The PBS is used as input when defining the Work Breakdown Structure later in the planning process.

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Work Products 

A project always delivers tangible things like documents, code, models, executables, plans etc. which all are Work Products.



Some examples; 

Customer deliverables 



Software components 



© ABB AB, Corporate Research - 5

design models, prototypes, tools etc.

Management artifacts 



source code files, DLLs, executables etc.

Development components 



software on a CD-ROM, user documentation etc.

plans, budgets, progress reports etc.

Quality assessment artifacts 

test results, inspection reports etc.

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© ABB AB, Corporate Research - 6

Project Breakdown Structure 

The Project Breakdown Structure should identify all Work Products of the project and the final product.



The highest level represents the total set of Work Products.



At the lowest level every Work Product is either a Management Product, a Technical Product or a Quality Product.

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© ABB AB, Corporate Research - 7

Req 6 Req 7 Req 8

X

X X X X X X

Req 9 Req 10

WP 10

WP 9

WP 8

X

Req 3

Req 5

WP 7

X

Req 2

Req 4

WP 6

X

WP 5

X

WP 4

WP 3

Req 1

WP 2

WP 1

Requirement-Work Product traceability matrix

X

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Management Work Products 

© ABB AB, Corporate Research - 8



The Management Work Products are those that; 

Assist in project management and control issues



Gives the answer to the business requirements

Typical Management Work Products are; 

Requirement specifications



Project plans



Risk list



Status reports



Budget specification



Project (gate) assessments



Minutes of meetings



Technical Work Products 

© ABB AB, Corporate Research - 9



The Technical Work Products are; 

Project deliverables, i.e. the final product



Intermediate products needed during development



The answer to the technical requirements

Typical Technical Work Products are; 

Hardware and Software



User documentation



Prototypes



Design models



Education products



Testing products



Executables



Quality Work Products 

© ABB AB, Corporate Research - 10



The Quality Work Products; 

Exists to define, assure, verify and record quality issues



Gives the answer to the quality requirements

Typical Quality Work Products are; 

Test records



Inspection (review) records



Error (problem) reports



Follow-up reports



© ABB AB, Corporate Research - 11

Summary 

The Project Breakdown Structure is a tree structure reflecting the Work Products on all levels produced by a project.



The Project Breakdown Structure should contain all the items included in the final product, needed to build the final product and needed to support the development of the final product.



The Work Breakdown Structure is later identified by defining what activities are needed to produce the Work Products to the required quality.

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

© ABB AB, Corporate Research - 13

Revisions Rev.

New Slide (N) Slide (S)

Description

Date Dept./Init.

04

All

Update from Version C

2004-01-08/ Fredrik Ekdahl

05

Page17

Planning package should not include the work product… picture redrawn

2005-01-12 / Christer Persson

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Relation between PBS & WBS WBS

Work Product

How

© ABB AB, Corporate Research - 14

What

PBS

Activity Planning Package Description

Planning Package

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