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Bottom-up Assessment
Also sometimes referred to as a "Traditional Assessment".

A comprehensive and detailed assessment of the assets at a facility.

A method of collecting Condition Data on each Asset (ie., micro level) using Empirical Data to generate line-item lists of Concerns and Projected Concerns for each Asset. 


Attributes
A detailed condition assessment that is characterized by the following:

Methodology
Listed below are the key steps in this process:
  • First, individual facilities are inspected by a team of skilled craftsmen and/or engineering consultants to identify and document individual deficiencies in facilities and equipment, systems, and structure 
  • Second, these deficiencies are then entered into a database or spreadsheet.
  • Third, industry or custom estimating guides are used to calculate the repair cost for each individual deficiency.
  • Fourth, the repair costs are sorted and organized is some fashion and then summed.
  • Additionally, this database then needs to be updated regularly to reflect additional deferred maintenance, deferred maintenance completed by repair actions, and adjusted for inflation from time to time.
  • Although simple in concept, this process can easily involve many of inspections and calculations for an agency of any size, and is cost-prohibitive. The data is also subject to rapid aging.

Evaluation:
Some of the advantages of this approach can be summarized as follows:

Some of the disadvantages of this approach are listed below:
  • Potentially expensive
  • Time consuming
  • Some of the data may be subjective
  • May result in more data than is necessary for the owners decisions making purposes

See also: 

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Fig. Field data collection

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Fig. Destructive testing

Compare with:


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