1. Overview
This manual provides reference material for Swift: the Swift language and the Swift runtime system. For introductory material, consult the Swift tutorial http://www.ci.uchicago.edu/swift/guides/tutorial.php.
Swift is a data-oriented coarse grained scripting language that supports dataset typing and mapping, dataset iteration, conditional branching, and procedural composition.
Swift programs (or workflows) are written in a language called Swift scripts.
Swift scripts are dataflow oriented - they are primarily concerned with processing (possibly large) collections of data files, by invoking programs to do that processing. Swift handles execution of such programs on remote sites by choosing sites, handling the staging of input and output files to and from the chosen sites and remote execution of program code.
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