Abstract
Callisto Basic and Callisto Pro
Highlights
The product attempts to connect to a predetermined list of products and services and identifies those with active subscriptions
To capture events at more or less frequent intervals, Sharp Moon can adjust the frequency of scans at the system level
Callisto works with systems protected by firewalls and with institutional virtual private networks (VPNs) and proxy servers, and can test access to electronic resources from various access routes and Internet protocol (IP) ranges
Summary
Library staff provide some basic information, such as type of authentication used and Internet protocol (IP) ranges, and install a small piece of software called a probe on one or more computers in each of the library’s IP ranges. The Callisto probe runs through each provider site on a regular cycle, usually a few times a day, to detect changes that can cause loss of access to content or highlight changes in provider title lists. To minimize the impact on the provider, Callisto makes these connections at randomized times.
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