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International Prince2 User Forum :: View topic - Product Breakdown Structure
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Product Breakdown Structure

 
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dweyer
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Joined: Mar 19, 2007
Posts: 7

PostPosted: Thu Apr 26, 2007 8:29 pm    Post subject: Product Breakdown Structure Reply with quote

Hi All,

I recently completed my Price 2 Practitioner exam and I am not sure how I should proceed with the product breakdown structure. Should I create one for the entire project including management products or one for each stage?

Thanks in advance
Dillon
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Becks
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Joined: Mar 28, 2007
Posts: 6
Location: London

PostPosted: Sat Apr 28, 2007 2:12 am    Post subject: Reply with quote

Hi Dillon,

It is important that you do a PBS for your final product early on (i.e. during IP and PL) as it will enable you to determine what sub specialist products are involved that when put together will create your final product. Doing this early on will enable you to estimate better and have a better idea of the quality criteria that will be required. More importantly it will give not only you but your project team as well a clear idea of what the project will involve.

In addition to the above, the PBS may identify certain sub products that are either large; complex or perhaps business sensitive so from the PBS you can decide to deal with those sub-products in a staged process using stage plans. This way you will have greater control over them.

You will note that I have left out management products from the PBS and this is just a personal thing because I feel that if you include them in a PBS then it could become a little daunting. In any event, as you work through the Prince2 process, management products are either created or updated at certain points throughout.

I hope this has helped and answered your question and good luck!

Becks

Simplicity is the ultimate Sophistication
Leonardo da Vinci
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dweyer
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PostPosted: Mon Apr 30, 2007 6:16 pm    Post subject: Reply with quote

Hi Becks,

Thanks for your reply. Can I confirm, create PBS at the beginning of the project, if during that process you identify that additional stages etc are required would you create a PBS for each of the stages as well?

Dill
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Becks
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PostPosted: Tue May 01, 2007 1:32 am    Post subject: Reply with quote

Hi Dillon,

As you are aware, PBS is a technique that allows you to determine what is involved in creating a product. For example, the product is a garden shed. The sub products that make up the final product (i.e. the shed) are a concrete foundation; walls; a door and a roof. Now that I have identified the sub products I can then decide what quality criteria that should be applied (eg. the wood for the shed should be Oak) and what type of skilled person is required. All of this creates a Product Description. The next process is to create a Product Flow Diagram, which will show the sequence that the sub-products need to be created, so in this case, the foundation goes down first; then the walls go up; then the roof and finally the door goes on.

All of this information will now allow me to do the planning. Since this is an expensive garden shed made out of Oak you cannot afford any mistakes, so to enhance the controls I decide to do the work in stages and create the associated stage plans. Now if half way through I realise I haven't factored in fitting a secure lock for the shed if I feel I can fit the lock within the time tolerance that has been allocated to me by the Project Board then I would arrange for that work to be carried out (by squezzing it into a current stage plan) but if it is a complex piece of work I would simply create another stage plan and schedule the work. If however the lock is going to take me outside of my time tolerance, then I will need to raise the lock as an issue, by logging it into the Issues Log, create an exception report for the Board and get them to agree to give me another day to fit the lock.

You will note from this long winded example that I have only created one PBS so in answer to your question ... No. As I mentioned , the PBS is a technique to allow you to see what makes up the final product. It gives you the information at an early stage (i.e. initiating a Project) to then decide whether you can deal with the project in one big project plan or whether it needs to be broken up into stages. Don't forget, whatever plan you use, it will never be static, it will always change to deal with uncertainty.

I apologise in advance for the simple example but I hope this has helped.

Becks

Simplicity is the ultimate Sophistication
Leonardo da Vinci
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dweyer
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Joined: Mar 19, 2007
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PostPosted: Tue May 01, 2007 6:09 pm    Post subject: Reply with quote

Hi Becks,

Thanks very much for taking the time and providing an explanation. I really appreciate the effort.


Dill
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