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Spatial Analysis Link Tool (SALT)
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What happens if I move this console four feet to the right? How is performance affected if I switch this operator with that one? These are the questions that the Spatial Analysis Link Tool (SALT) was developed to answer. For years SALT has assisted Human Factors professionals in creating, modeling, visualizing, analyzing, and optimizing spaces.

SALT was developed for the Naval Surface Warfare Center in Dahlgren, Virginia, built on open source technologies, using open standards, and provides a reliable platform on which to conduct spatial analysis.

A simple SALT workflow allows the user to import an image of a space (from Visio, CAD, or even PowerPoint...any standard graphics format is accepted), place people and equipment into a space, and define the relationships and interactions between them. Interactions between and among people and equipment can be viewed and analyzed. The health of each interaction (or link) is displayed immediately to the user as he or she moves elements around the screen. At a glance, a user can see which links are strained or even broken.

SALT Features
  • Easy import of background graphics images
  • Simple scale definition based on background image
  • Predefined and scaled elements representing people, consoles, displays, and several other common items
  • Predefined common link types: visual, auditory, proximity, and others
  • Export to standard graphics and animated (swf) formats
  • Normalized metrics for comparisons
  • Animation (time state analysis)
  • 3D Views
  • Complete control over link health degradation, including health curves and custom thresholds
  • Consideration of directionality in elements and links
  • Ability to customize predefined elements and links
  • Ability to create new elements or link types from scratch, including custom graphical representations
  • Ability to analyze layouts by defined link health or composite measures that include frequency and criticality of links
  • Ability to import elements and links from table sources such as Microsoft Excel
What Makes SALT Different?
  • No other tool of this type provides the benefits and analysis result types that SALT does
  • SALT is applied to optimize the spatial layout within a defined space - NOT to help determine what space should be created
  • SALT provides data on human productivity and efficiency probabilities that inform trade-off decisions for determining the “best” layout solution possible within the given constraints