Resource Histograms (Edexcel A-Level Further Mathematics): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
What a resource histogram is
What a resource histogram is
Bar chart showing workers required over project duration
Purpose of resource histogram
Purpose of resource histogram
Assess workforce demands & ensure resources available when needed
3 key pieces of info for each activity
3 key pieces of info for each activity
Start time, duration, number of workers required
How to calculate workers at each time unit
How to calculate workers at each time unit
Sum workers needed across all activities in progress
Formula: Total workers at any time
Formula: Total workers at any time
Sum of workers for overlapping activities
Formula: Finish time of an activity
Formula: Finish time of an activity
Start time + duration
In resource histogram, bar height represents:
In resource histogram, bar height represents:
Total workers required at that time step
When activities overlap, calculate total workers by:
When activities overlap, calculate total workers by:
Add contributions from all activities running in that interval
Common mistake: Forgetting ___
Common mistake: Forgetting ___
Overlaps - not summing workers from simultaneous activities
Common mistake with durations
Common mistake with durations
Confusing start and finish times with durations