Volumetric enclosure(s) provide methods and/or apparatus for teaching, generating and deriving supply chain efficiency improvement. Prime Manifold Enclosure(s) methods and/or apparatus provide for deriving and generating efficiency by volumetric displacement and volumetric replacement of dissimilar material(s) and volumetric displacement and volumetric replacement of material having dissimilar origin. Prime Manifold Enclosure(s) interposed for cooperative coaptation and flow path communication/continuity between gradient matrix flow paths for volumetrically displacing and volumetrically replacing of dissimilar materials, and volumetrically displacing and volumetrically replacing materials of dissimilar origin. In process flow continuity embodying volumetric displacement and replacement of distinct materials of distinct origin interposing manifolds comprising materials having rigid, and/or, semi-rigid, and/or, semi-flexible, and/or flexible characteristics are disclosed for ingressing and egressing fluent materials along gradient flow matrix patterns.