Sajnos a pontos szakkifejezést én sem ismerem, találgatni meg nem ildomos, de az angol magyarázat talán segít közelebb kerülni a megoldáshoz. A delay ebben a témában csúszás szokott lenni, a project element projektelem, a schedule pedig ütemezés (ütemezési terv, ütemterv). Itt bizonyos tevékenységek kihatnak (impact) az átfutási időre.

"Impacted As-Planned

The impacted as-planned (IAP) method makes use of the schedule that was created at the start of the project – the as-planned schedule. The analyst inserts delay activities into this schedule to allegedly represent the impacts to the work caused by the particular delay events. These inserted activities cause the project completion date to be extended. This is taken to be support for the number of days of delay and entitlement for additional costs. Most construction industry professionals and third-party venues have agreed that the IAP method is not an accurate method to quantify the impact of delays on a construction project. The IAP method disregards all of the as-built project information. It also affords the analyst great latitude to select what issues to address or overlook. This provides additional opportunity to manipulate the results of the analysis."