Chapter 10 Product Selection and Evaluation develops the concept of the dual nature of design, which was first introduced in Chapter 8 (Design). There is a direct relation between who develops the documents and the project delivery method selected.
Through product selection is required to:
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Establish performance requirements for products, assemblies, equipment, as well as the facility itself.
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Identify types of products with attributes that comply with the performance requirements that are established for the project.
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Obtain product information from product representatives.
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Select specific products based on their history of perfomance in like applications, their compatibility with other selected products, and their life cycle value.
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Consider alternatives.
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Present product selections to the owner.
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Document Selections.
Types of Products
Know definition of term product, which can be categorized into various types.
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Materials
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Commodities
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Products
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Standard Products
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Custom Products
When evaluating custom products, note the following possible considerations:
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Prepayment
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Submittals
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Minimum Purchase Orders
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Custom Colors
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Lead Time
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Testing and Certification
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Proprietary Products
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Assemblies/Fabrications
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Equipment
Importance of Product Selection and Evaluation
Select appropriately for the project and their completed facility. Review possible questions to consider, before deciding on a product. (Review PDPG - Chapter 10, p. 192.)
Obtaining Product Information
Note influence of the Internet in the selection process. Note list of sources of information about the aesthetic and technical aspects of a product. (Review PDPG - Chapter 10, p. 193.)
The Evaluation and Selection Process
Note the relation between effective evaluation and selection products with the decision-making process.
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Initial Product Identification
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Establishing Product Criteria
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The Nature of Attributes - Three considerations:
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Requirements
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Criteria
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Tests
Note Figure 10.1, a reference guide example.
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Project Requirements - The project schedule has two basic influences:
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Schedule for design delivery
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Product delivery
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Project Delivery
Note Table 10.1 on "Project Stages, Decisions, and Information Needs."
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Determining Applicable Criteria
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Attribute Categories for Evaluation
Review PDPG - Chapter 10, pages 203-209.
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General Considerations
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Physical Properties
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Performance
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Sustainability
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Safety and Protection
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Manufacturers
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Installers
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Cost
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Maintenance - Know the following considerations and terms.
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Product Design
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Maintenance Cycles
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Maintenance Training
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Maintenance Supplies
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Manufacturer or Distributor Support Services
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Services That Produce Representatives Provide
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Techanical Assistence
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Assistance in Preparing Specifications
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Assistance in Preparing Drawings
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Estimating Costs
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Representative Costs
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Project Conditions
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Manufacturers
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Fabrication - Shop Assembly, Shop Finishing, and Tolerances
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Testing and Certification
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Installer and Fabricator Qualifications
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Cost Considerations
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Size of Project
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Choice of Contractor Installer/Subcontractor
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Time of Year
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Use of Standard Materials
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Other factors such as site conditions, labor rates dictated by law (aka prevailing wage rates), and availability of authorized/experienced installers
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Code Considerations
Image Credit: Getty Images (Thomas Northcut)