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om ppt 29 apr 11

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    WorkBreakdown Structure (WBS)

    A hierarchical system which sub-

    divides larger elements of the

    project into smaller elements.

    The smallest unit of the WBS is the

    work package.

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    WORKBREAKDOWN STRUCTURE (cont.)

    The scope of work in each work package

    should be defined to avoid overlaps andomissions between work packages.

    Work packages should be defined in terms

    of design, construction methods, and

    completion requirements, with associated

    performance dates

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    WBS

    What is it?

    Why do we need it? Are we going to get graded on this?

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    What is it?

    In software development, this is a

    feature breakdown structure. Feature-by-feature catalog and

    description

    A comprehensive classification of

    project scope, not an exhaustive

    list of work

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    Why do we need it?

    To document agreement with client

    To provide a define the scope of theproject clearly for the team and the

    client Aids in planning

    Estimation

    Assigning responsibility

    It is considered poor practice to develop a

    schedule without first designing a WBS

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    Are we going to be graded on this?

    Yes

    The way you are graded is pass/failon this section. If you turn in

    documents without this they will

    be returned to you for revision.

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    Q7503, Principles of Project Management, Fall 2002 8

    WBS Chart Example

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    Prof Awad S. Hanna

    Scope of Work Packages

    Each work packages should be:

    1. Manageable

    Specific authority and responsibility can be assigned.

    2. Independent

    With minimum interfacing or dependence on other

    elements.

    3. Measurable In terms of progress.

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    Q7503, Principles of Project Management, Fall 2002 11

    Work Breakdown Structure: WBS

    Hierarchical list of projects work activities

    2 Formats

    Outline (indented format)

    Graphical Tree (Organizational Chart)

    Uses a decimal numbering system

    Ex: 3.1.5

    0 is typically top level

    Includes

    Development, Mgmt., and project support tasks

    Shows is contained in relationships

    Does not show dependencies or durations

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    Q7503, Principles of Project Management, Fall 2002 12

    WBS

    Contract WBS (CWBS)

    First 2 or3 levels

    High-level tracking

    Project WBS (PWBS)

    Defined by PM and team members

    Tasks tied to deliverables

    Lowest level tracking

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    Q7503, Principles of Project Management, Fall 2002 13

    A Full WBS Structure

    Up to six levels (3-6 usually) such as

    Upper3 can be used by customer for reporting (if

    part of RFP/RFQ) Different level can be applied to different uses

    Ex: Level 1: authorizations; 2: budgets; 3: schedules

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    Q7503, Principles of Project Management, Fall 2002 14

    WBS Chart Example

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    Q7503, Principles of Project Management, Fall 2002 15

    WBS Types

    Process WBS a.k.a Activity-oriented

    Ex: Requirements, Analysis, Design, Testing

    Typically used by PM

    Product WBS a.k.a. Entity-oriented

    Ex: Financial engine, Interface system, DB

    Typically used by engineering manager

    Hybrid WBS: both above This is not unusual

    Ex: Lifecycle phases at high level with component or feature-specifics within phases

    Rationale: processes produce products

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    Q7503, Principles of Project Management, Fall 2002 16

    Product WBS

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    Q7503, Principles of Project Management, Fall 2002 17

    Process WBS

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    WBS Types

    Less frequently used alternatives

    Organizational WBS

    Research, Product Design, Engineering, Operations

    Can be useful for highly cross-functional projects

    Geographical WBS

    Can be useful with distributed teams NYC team, San Jose team, Off-shore team

    Q7503, Principles of ProjectManagement, Fall 2002 18


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