Timeliness

1 Definition

The period between the moment of requesting information to the moment of availability of information.

• Near Real-Time (NRT): delivered less than 3 hours after requesting information
• Slow-Time Critical (STC): delivered within 48 hours after requesting information
• Non-Time Critical (NTC): typically delivered within 1 month after requesting information

Notes

• In some context also known as delivery time.
• C3S URDB describes timeliness as “the ability of the publish/subscribe middleware to provide the expected service within known time bounds”

Examples

Sources

• Adapted from ESA S3 User Guide