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Tuesday 28 May 2013

Dissertation Series - CRISP DM - Step Five Evaluation


Evaluate results
The previous assessment of the model investigated how accurate the model was, the evaluate results sub-step investigates the models suitability based on the business success factors set at the start of the project (The Modelling Agency, 2000 p.30).
Review process
Using the conclusions of the evaluate results sub-step it may be that an area for further development of the model is identified and additional work is required; this may because of the amount of time that has elapsed since the original specification was drawn up or even down to something being overlooked in the business understanding sub-steps (The Modelling Agency, 2000 p.31).
Determine next steps
Following the assessment and results of the review process the next steps can be decided on, there are three possible avenues;



Further development work
If additional requirements are identified during the review process then it may be necessary to carry out additional work on the model (The Modelling Agency, 2000 p.31), it may also be necessary to carry out further development work if the model does not meet the initial requirements (The Modelling Agency, 2000 p.30).
Close the project
IT projects especially are known for going out of tolerance in terms of cost and time (McManus et al, 2008), in some circumstances it is therefore necessary to close a project prematurely (OFC, 2005 p.71) to save resources.  The reasons behind closing the project may be complex such as industry changes leading to the original problem defined no longer existing and as such shouldn’t always be seen as a failure.
Deploy the model
In the event of the evaluation providing the model successfully in meeting the requirements, the model can move to the next stage of being deployed (The Modelling Agency, 2000 p.31).

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