1. Problem Definition
After compare two best practice of standardized WBS on Blog W2 and W5, this week the Blog will determine and analyze which of the 15 elements Omniclass tables specially on Zone Breakdown Structure would be appropriate to use in creating a 3D WBS structure for a Gas Station Project.
2. Develop the Feasible Alternative
Moine (2013) has developed a 3D WBS model.
- Product Breakdown Structure (PBS) is constructed by Systems, sub systems, products and sub products. Products are an extension of Systems. On Omni Class it is contain Table: 11, 12, 21, 23 and 36.
- Activity Breakdown Structure (ABS) is constructed by phases, macro-activities, activities and sub activities. On Omni Class it is contain Table: 22, 31 and 32.
- Zone Breakdown Structure (ZBS) are physico-functionnals, they are divided by Areas, Sections, for instance. ZBS can be a topographic view of the construction site of a project, it can be a notion of geography. ZBS can be also viewed as functional zones, like for design phase and commissioning phase for instance. On Omni Class it is contain Table: 13 and 14.
All of this three dimension projects can be integrated in comprehensive 3D models which visualized as figure 1 below:
Fig 1. Project Cubes Concept of 3D WBS Model
3. Develop of the Outcome for Alternative
In this week, author will be chosen what kind of GBS/ZBS element on Omniclass that applicable for GS Project. Author will use the Lexicography Non-Compensatory Models tool.
4. Selection Criteria
Two standardized WBS will be evaluated considering the following attributes:
- WBS level detail completeness
- Tables applicability/uses for oil & gas project
- WBS that reflect function boundaries of gas station
- WBS level description
5. Analysis & Comparison of Alternative
There are two elements on OmniClass that present ZBS element: Tables 13 and 14.
Fig 1. OmniClass Table 13
Table 13 content Spaces by Function that are basic units of the built environment delineated by physical or abstract boundaries and characterized by function.
Fig 2. OmniClass Table 14
Table 14 content Spaces by Form that are basic units of the built environment delineated by physical or abstract boundaries and characterized by physical form.
The ZBS Elements Table comparison of the attributes is expressed in Table 1 below:
Table 1. Comparison of ZBS Elements
Attributes in table 1 were ranked in order of importance by applying paired comparison between each attribute combination. Results are shown as follows:
Table 2. Ordinal Ranking of ZBS Elements
Following Table 2, the ranking is ordered as follows:
Table 3. Application of Lexicography
6. Selection of the Preferred Alternatives
The Table 13 was found the optimum selection, since it has the highest score. The Table 13 not only can reflect function boundaries of GS Project but also has the highest level details that include level description. Therefore, it could be adapted as a standardized ZBS element to enhance the project performance and cost control GS projects.
7. Performance Monitoring and The Post Evaluation Result
A standardized WBS structure is one success key for project team to the deliver project with OTOBOS. Next week, author will build up GS WBS from Table 13, to prove whether the conclusion above is correct and start evaluating the impact during phases of the project.
- Planning Planet (2017). Creating Work Breakdown Structure. Retrieved from http://www.planningplanet.com/guild/gpccar/creating-work-breakdown-structure
- Ardi, Satria. (2014). W14_SAS_Developing|Soroako AACE 2014. Retrieved from https://soroakoaace2014.wordpress.com/2014/12/12/w14_sas_developing-standardize-omniclass-3d-wbs-for-electric-furnace-rebuild-project/
- OmniClass (2017), OmniClass Table 21 – Elements (includes design elements). Retrieved from www.omniclass.org/tables/OmniClass_21_2012-05-16.zip
- Norsok Standard Z-014 (2017), Norsok Standard Z-014. Retrieved from http://www.standard.no/pagefiles/951/z-014.pdf
- Ardi, Satria. (2014). W12_SAS_Developing|Soroako AACE 2014. Retrieved from https://soroakoaace2014.wordpress.com/2014/11/28/w12_sas_developing-3d-wbs-for-electric-furnace-rebuild-project/
- El Rashid, M. (2016). The Influence of Non-Standard Work Breakdown Structure on Change Orders and Cost Estimation for Sudan Oil and Gas Projects, PM Word Journal Vol. V. Retrieved from http://pmworldlibrary.net/wp-content/uploads/2016/12/pmwj53-Dec2016-ElRashid-non-standard-work-breakdown-structure-sudan-featured-paper.pdf
- Gannasonggo, Gustaf. (2012). W3_GGS_OmniClass WBS|Casablanca AACE 2012. Retrieved from https://aacecasablanca.wordpress.com/2012/02/06/w3_ggs_omniclass-wbs-table-selection-using-additive-weighting-technique/