D1 June 2014 Q2

Notes

Throughout part (a) condone lack of numbered events throughout – also ‘dealt with correctly’ means that the activity starts from the correct event (but not necessarily finishing at the correct event) e.g. ‘H dealt with correctly’ requires F and E leading into the same event and H starting from that event (but not necessarily H leading into K). Activity on node is M0.

a1M1 7 activities and one dummy placed.

a1A1 One start + activities A, B, C and E dealt with correctly.

a2A1 Activities D, F, G, H and K and the 1st dummy dealt with correctly.

a3A1 Activities I and J and the 2nd dummy dealt with correctly.

a4A1 CSO (all four previous marks must have been awarded) - all arrows present and correctly placed with one finish – condone lack of arrows for the first four marks only. No ‘extra’ activities.

Note that another valid solution would be the dummy going from event 3 to event 2 and D, G and F coming out of event 2. Or the candidate could start with a dummy from event 1 to ensure the uniqueness of activities A and B.

Notes

b1B1 CAO – with no incorrect terminology (e.g. event for activity) - please note that e.g. ‘so that activities can be defined uniquely’ is not sufficient to earn this mark. There must be a mention of describing activities uniquely in terms of the events at each end. However give bod on statements that imply that an activity begins and ends at the same event e.g. ‘so that activites do not have the same start and finish’ is sufficient for B1.

b2B1 CAO – all relevant activities must be referred to – so activities D, G, I and J must all be mentioned for this mark.