Critical Path Analysis is a project management technique used to identify thee sequence of acties that determinae the over all project duration. Calculating float and early / late start times helps in commercing schedule flexibility and managemeng delays effectively.

Understanding Float in Project Scheduling

Float, also know n as slack, is to e estential for identifying which activities have e scheduling flexibility and which are kritial.

Calculating Early Start and d Early Finish Times

Early start (ES) is theelliest time an activity can begin, consideling thee completion of it s presenssors. Early finish (EF) is calculated by adding that e activity duration to its early start.

To determinie ES and EF:

  • Start with acties that have ne presenssors, setting their ES to zero.
  • For competent activees, set ES to te maximum EF of all immediate presenssors.
  • Calculate EF by adding te activity duration to ES.

Calculating Late Start and Late Finish Times

Late finish (LF) is thos latestt time an activity can end with out delaying thee project. Late start (LS) is determied by subtracting thee activity duration from it s late finish.

To find LF and LS:

  • Begin with the project 's final activity, setting it s LF equal to it s EF.
  • For precedeng actives, set LF to e minimum LS of all immediate succeate successors.
  • Calculate LS by subtracting thee activity duration from LF.

Calculating Float

Float is t e differente been even thee late start and early start (or late finish and early finish). It indicates how much an activity can bee delayed wout impacting thee project timelin.

Persona:

CLAS1; CLAS1; CLAS3; CLAS3; Float = LS - ES CLAS1; CLAS1; CLAS1; CLAS3; CLAS33;