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A-LevelBusiness StudiesOperations management9609/31 · May/June 2019 · Q221 Marks

Refer to Table 1.

  1. (a)Construct a network diagram, including the earliest start times (EST) and latest finishing times (LFT) of all the activities.[6]
  2. (b)(i)Calculate the following: minimum project duration[1]
  3. (b)(ii)Calculate the following: free float for activity D.[2]
  4. (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]

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Mark scheme

Marking points from the official mark scheme (May/June 2019). The mark or mark type is shown in brackets.

  1. [2(a)] Reasonable attempt at network (no marks awardable for any of below) 2 mark
  2. [2(a)] All ESTs correct 2 marks
  3. [2(a)] 2 or more EST 1 mark
  4. [2(a)] 2 or more LFT 1 mark
  5. [2(a)] All LFTs correct 2 marks
  6. [2(a)] Activities in correct order 1 mark
  7. [2(a)] Nodes numbered 1 mark
  8. [2(b)(i)] 24 (weeks) 1 mark
  9. [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
  10. [2(b)(ii)] or EST next activity – duration – EST 1 mark
  11. [2(b)(ii)] = 22 – 2 – 13 = 7 weeks 2 marks
  12. [2(b)(ii)] Units must be stated
  13. [2(b)(ii)] 7 (1)
  14. [2(c) Knowledge] CPA enables project duration to be calculated so that key dates can be determined and activities planned
  15. [2(c) Knowledge] CPA enables start times of activities to be known so that appropriate resources can be assembled
  16. [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
  17. [2(c) Knowledge] Critical path identified so managers focus on high priority activities
  18. [2(c) Knowledge] Knowing floats enables consequences of delays to be identified and resource allocation altered to minimise disruption to schedules
  19. [2(c) Knowledge] Reference to inability to meet deadline for jewellery fairs, jewellery
  20. [2(c) Application] Production, types of jewellery, need to save 4 weeks
  21. [2(c) Application] Reference to specific parts of the network e.g. duration of research and preparation of designs
  22. [2(c) Application] Reference to float of activity D
  23. [2(c) Application] Reference to specific critical activities
  24. [2(c) Application] Experience that BSJ has in preparing for trade fairs and existing data on timescales
  25. [2(c) Application] New designs for trade fairs
  26. [2(c) Analysis] Key dates can be determined and activities planned
  27. [2(c) Analysis] Appropriate resources can be assembled
  28. [2(c) Analysis] Progress can be monitored and action taken if activities are not going to be in time
  29. [2(c) Analysis] Managers are enabled focus on high priority activities increasing the chance of completion on time
  30. [2(c) Analysis] Consequences of delays can be identified and resource allocation altered to make sure jewellery is ready on time
  31. [2(c) Analysis] Each activity can be researched to see if any time can be saved
  32. [2(c) Analysis] Activities can be identified to save the 4 weeks needed
  33. [2(c) Evaluation] Technique only as good as data
  34. [2(c) Evaluation] Difficult to estimate activity durations
  35. [2(c) Evaluation] Past years may not be a good guide to next year - designs vary
  36. [2(c) Evaluation] CPA costs but is small compared to cost of project
  37. [2(c) Evaluation] Great value as makes Janice/Anil look closely at activities and could improve reputation and sales if appropriate changes implemented.

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About this question

Topic
Operations management, A-Level Business Studies (syllabus 9609). Structured question, 21 marks.
Source
A-Level Business Studies, May/June 2019 Paper 3 Variant 1, question 2.

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