WordNet
n. (computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory; "the market for software is expected to expand" [syn: software, software package, package] [ant: hardware]
Wikipedia
A software system is a system of intercommunicating components based on software forming part of a computer system (a combination of hardware and software). It "consists of a number of separate programs, configuration files, which are used to set up these programs, system documentation, which describes the structure of the system, and user documentation, which explains how to use the system".
While a computer program is a set of instructions ( source, or object code) a software system has many more components such as specification, test results, end-user documentation, maintenance records, etc.
Usage examples of "software system".
The software system picked the code names and assigned them to case files.
The software system, the Minuteman, that observes nearly everything anybody says or does in this country, overheard you say some nasty things about how you'd like to assassinate the President, it did some digging into your closets that are only opened if someone is suspected of a crime, found enough for a case, and here you are.
And she set up a software system that would connect me with other libraries.