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Decision and Discrete : Cleaning My Room. I was asked to pick a subject and produce a time plan. My chosen subject is 'cleaning my room' . This must be done in a certain time, with a minimum amount of people. Some activities cannot be done concurrently due to lack of space. I drew up a table of the activities required to achieve a Clean Room result roughly in chronological order. I added duration to each activity and dependence on previous activities. I added the activity 'decided to clean' to give all activities a dependency and the activity network a single start point. Inde x No. Activity Duration Dependency 1 Decide to Clean - 2 Dust Cupboards 5 1 3 Remove Bedding 2 2 4 Bedding to laundry 0.5 3 5 Replace bedding 5 2 6 Make Bed 4 3,5 7 Remove items from sides 6 2 8 Remove cups 1 1 9 Clean items 2 7 10 Write replacement items list 3 7 11 Wash up cups 2 8 12 Clean glass 5 7 13 Clean sides 4 7,8 14 Clean mirror 2 2 15 Return cleaned items 8 9,12,14 16 Clear floor 6 4 17 Sort paperwork 3 16 18 Empty bin 5 16 19 Hoover floor 6 6,16 20 Clean window sill 3 2 21 Water flowers 1 1 22 Return bin 1 18 23 Complete floor 0 22,19,17,6 24 Inspect 2 10,11,13,15,20 Not all activities have obvious dependency. For example remove bedding is dependent on dust cupboards because...

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