© ABB AB, Corporate Research - 1 6/1/2015 abb Work Breakdown Structure Creation

© ABB AB, Corporate Research - 2 abb Project Planning Course Overview Project Planning Overview Facilitating Processes Project Planning Pre-conditions Risk Management Work Breakdown Structure Project Breakdown Structure Estimation Resource Planning Logical Network Plan Budgeting Time Schedule Project Planning Result Product Anatomy Organic Integration Plan Integration Plan

© ABB AB, Corporate Research - 3 abb Purpose Define the scope of work in the project. Identify all included activities and basic data on these, e.g. size and complexity.

© ABB AB, Corporate Research - 4 abb Input & Output INPUT Detailed Requirements Specification Project Breakdown Structure Work Breakdown Structure from previous projects, if available Know-how from experienced personnel OUTPUT Work Breakdown Structure Planning Package Descriptions These are used as input to Estimation.

© ABB AB, Corporate Research - 5 abb Identifying the WBS The Work Breakdown Structure is identified by defining what activities are needed to produce the Work Products, defined in the Project Breakdown Structure, to the required quality.

© ABB AB, Corporate Research - 6 abb Creating a Work Breakdown Structure Start with the Project Breakdown Structure (what to do) Break down all Work Products in the PBS into corresponding activities Define PBS Define WBS Create Time Schedule Calculate Budget Create Organic Integra- tion Plan Estimate Define Product Anatomy Create Logical Network Plan Create Resource Plan Negotiate Resources Review Project Plan Mgmnt Products Req. Spec. Project Plan The Project

© ABB AB, Corporate Research - 7 abb Numbering the Boxes Each box in the WBS should have a unique identification, i.e. a number Project

© ABB AB, Corporate Research - 8 abb Writing Planning Package Descriptions For each lowest level activity write a Planning Package Description containing the following data: Name and unique identification (i.e. number) of the activity Input (what is needed to perform the activity) Output / Work Products A short description of what to do Size (1, 2, 3) (measure in units like lines of code, size of documents etc., not in time required) Complexity (1, 2, 3) Other dependencies

© ABB AB, Corporate Research - 9 abb Summary The Work Breakdown Structure is a tree structure reflecting the activity structure on all levels of the project, and a Planning Package Description for each of the lowest level activities. The Planning Package Descriptions will be used as input to estimation where size, duration and cost elements will be added to each Planning Package.

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© ABB AB, Corporate Research - 11 abb Revisions Rev.New Slide (N) Slide (S) DescriptionDate Dept./Init. 04AllUpdate from Version C / Fredrik Ekdahl 04d3p6Clarify Work Package in picture Branger 05ExerciseWBS Exercise divided into 3 sub exercises. Refer to the exercise of the Estimation-presentation / Christer Persson 06p6Work Package border redrawn, / Christer Persson