The Robust reference article from the English Wikipedia on 24-Apr-2004
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Robust

Sponsorship the way you would do it
Referring to the health, strength and durability of something. In computing terms, being robust is reliability or being available seven days a week, twenty-four hours a day. Robustness is an important characterists of the internet because network design is a key factor in the availability of data.

Examples

A robust file sharing program may not provide all the desired data all the time but will deliver reliably, matching queries and completing downloads.

See also: Programming | Security | Data Haven