Scoring of web events/activities is not retroactive and includes those events and activities take place after the web activity is added to the scoring model.
Scoring of programs is retroactive and accounts for all program history. Scoring of web events/activities is not retroactive and includes those events and activities that take place after the web activity is added to the scoring model.
For example, if you create a score based on a web event, then remove the scoring section, the score decreases. If you return later and add the score back into the model, the scoring model adds back on the score.
If someone does a web event or activity today, and that web event or activity is put into scoring tomorrow, then even if the person's score is recalculated the person's score does not reflect the web event or activity.
If a web event or activity is put into scoring today, and a person does that event or activity tomorrow, the score increases. If the web event or activity is then removed from scoring, the person's score decreases upon recalculation. If the same web event or activity is then added back into scoring, the person's score increases again when recalculated.
If program activity is added to a scoring model, then all historical program activity will be included for a person the next time that person is scored. The program activity does not work the same way as web events or activities.