Refer to Table 1.
- (a)Construct a network diagram, including the earliest start times (EST) and latest finishing times (LFT) of all the activities.[6]
- (b)(i)Calculate the following: minimum project duration[1]
- (b)(ii)Calculate the following: free float for activity D.[2]
- (c)BSJ currently has problems meeting deadlines for jewellery trade fairs (lines 36-42). Evaluate the usefulness of critical path analysis to BSJ in helping the company meet these deadlines.[12]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2019). The mark or mark type is shown in brackets.
- [2(a)] Reasonable attempt at network (no marks awardable for any of below) 2 mark
- [2(a)] All ESTs correct 2 marks
- [2(a)] 2 or more EST 1 mark
- [2(a)] 2 or more LFT 1 mark
- [2(a)] All LFTs correct 2 marks
- [2(a)] Activities in correct order 1 mark
- [2(a)] Nodes numbered 1 mark
- [2(b)(i)] 24 (weeks) 1 mark
- [2(b)(ii)] Free float = The amount of time that a scheduled activity can be delayed without delaying the earliest start time of any successor activity
- [2(b)(ii)] or EST next activity – duration – EST 1 mark
- [2(b)(ii)] = 22 – 2 – 13 = 7 weeks 2 marks
- [2(b)(ii)] Units must be stated
- [2(b)(ii)] 7 (1)
- [2(c) Knowledge] CPA enables project duration to be calculated so that key dates can be determined and activities planned
- [2(c) Knowledge] CPA enables start times of activities to be known so that appropriate resources can be assembled
- [2(c) Knowledge] CPA enables latest finish times to be known so that progress can be monitored and action taken if activities are not going to be in time
- [2(c) Knowledge] Critical path identified so managers focus on high priority activities
- [2(c) Knowledge] Knowing floats enables consequences of delays to be identified and resource allocation altered to minimise disruption to schedules
- [2(c) Knowledge] Reference to inability to meet deadline for jewellery fairs, jewellery
- [2(c) Application] Production, types of jewellery, need to save 4 weeks
- [2(c) Application] Reference to specific parts of the network e.g. duration of research and preparation of designs
- [2(c) Application] Reference to float of activity D
- [2(c) Application] Reference to specific critical activities
- [2(c) Application] Experience that BSJ has in preparing for trade fairs and existing data on timescales
- [2(c) Application] New designs for trade fairs
- [2(c) Analysis] Key dates can be determined and activities planned
- [2(c) Analysis] Appropriate resources can be assembled
- [2(c) Analysis] Progress can be monitored and action taken if activities are not going to be in time
- [2(c) Analysis] Managers are enabled focus on high priority activities increasing the chance of completion on time
- [2(c) Analysis] Consequences of delays can be identified and resource allocation altered to make sure jewellery is ready on time
- [2(c) Analysis] Each activity can be researched to see if any time can be saved
- [2(c) Analysis] Activities can be identified to save the 4 weeks needed
- [2(c) Evaluation] Technique only as good as data
- [2(c) Evaluation] Difficult to estimate activity durations
- [2(c) Evaluation] Past years may not be a good guide to next year - designs vary
- [2(c) Evaluation] CPA costs but is small compared to cost of project
- [2(c) Evaluation] Great value as makes Janice/Anil look closely at activities and could improve reputation and sales if appropriate changes implemented.
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →