Critical Course Essay

LGT3105 Businesses Management

Session 2, 2012/13

Individual Created Assignment

(Case 1 Playthings City)

Identity: LUON Shuk Yan

College student Id: 11280338d

LEC001

SEARCH ENGINE OPTIMIZATION 005

Category Instructor: Ashton Wan

Query (1)

I would have let in David Cheung's vacation demand.

According to the network diagram above

The critical way of the project is:

Activity 1 Activity 2 Activity 5 Activity 7 Activity 10 Activity 13 Activity 15

Since audit of liquid assets (activity 4) can be not around the critical path, it is not a major activity. This slack job has a slack time of a hundred and seventy-eight hours that slack time= late begin time – early start off time (231-53) = late finish period – early on finish time (266-88).

The task duration will never be affected even if David requires his seven days vacation while the slack time is just as long while 178 several hours.

The maximum time I would be comfy giving David Cheung off is 143 hours. (Slack time – duration of his activity = 178 -35). As the most recent start time for audit of liquid assets may be the 231st hour, the life long the task will not be affected if David will be to his operate before the 231st hour.

Problem (2)

As all the activities were highly processed exactly on schedule for the first 106 duration several hours, the network diagram after the first 106 duration hours is as adhere to:

The critical path is definitely:

Activity5 Activity7 Activity10 Activity13 Activity15

The remaining timeframe is 207 hours (= 313 – 106).

We should initially calculate the per-unit price for each hour saved in each activity.

The cost every time unit sama dengan Cost to reduce to the minimal Maximum number of your time unit decreased

| | Normal| Acceleration| | |

Activity| Description| Time| Cost($)| Time| Cost($)| Possible period saved| Extra cost| Price per time unit ($)| 3| General audit procedures| 22| 1200| 22| 1200| 0| 0| -| 4| Audit of liquefied asset| 35| 1890| 35| 1890| 0| 0| -| 5| Inventory pricing| 92| 3055| 56| 4600| 36| 1545| 42. 92| 6| Audit of fixed assets| 22| 1050| 22| 1050| 0| 0| -| 7| Audit of liabilities| 93| 3880| 48| 4720| 45| 840| 18. 67| 8| Audit of COGS| 25| 1310| 25| 1310| 0| 0| -

9| Miscellaneous audit| 11| 640| 9| 660| 2| 20| 10| 10| Lawyer's letter| 1| 40| 1| 40| 0| 0| --

11| Management's letter| 1| 40| 1| 40| 0| 0| --

12| Subsequent review| 18| 920| 3| 1670| 15| 750| 50| 13| Preparation of financial statements| 15| 480| 10| 1080| 5| 600| 120| 14| Preparation of tax returns| 12| 480| 2| 980| 10| 500| 50| 15| Partner/manager review| 6| 360| 6| 360| 0| 0| -

According to CPM, we should crash those activities until all of us reach the desired project length. For this job, the desired period is 147 hours. (207 – 60)

In the case with only one essential path, we should crash those activities on the important path with all the lowest per-unit crash cost and crash only one activity one time.

With accordance to the above desk, we can see activity 7 is a good activity to be crashed because the crash cost of activity 7 may be the lowest and it is on the critical path. We crash activity 7 till we generate new essential path(s). This means that we will need to crash activity 7 simply by 43 hours. New crucial paths are manufactured.

The current critical paths are:

[ My spouse and i ]: Activity 5 Activity 7 Activity10 Activity13 Activity15

[ II ]: Activity5 Activity8 Activity9 Activity12 Activity14 Activity15

For the case of two critical paths, we should locate 1 or 2 activities that can lessen both crucial paths at the same time and for which the combination of activities are while using lowest put together crash costs. The best option is usually crashing actions 7 and 9 because the put together costs of them are lowest ($18. 67). Activity 7 and activity being unfaithful should be damaged by two hours as we reach the crash limit of activity several (45 hours) and activity 9 (2 hours).

Next, we should crash Activity your five, since...



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