Humber Web Design Co. is organizing a new project to increase efficiency and improve relations with their clients. The project manager for this initiative has broken the project up into several parts as follows: Activity Activity Description Immediate Predecessor Activity time (days) A Identify Client Base ― 44 B Develop Client Prospectus ― 35 C Perform Design Analysis ― 46 D Program Back End A, B, C 43 E Program Front End A 27 F Project Consolidation D, E 36 (a) For the given project, fill in the nodes of the network diagram below. A E 44 27 Start B D F Finish Time 35 43 36 Time C 46 (b) Using the network diagram, fill in the table. Make sure that you put the values in the appropriate columns. Activity Earliest Start (ES) Latest Start (LS) Earliest Finish (EF) Latest Finish (LF) Slack (LS-ES) Critical Path? A ? No Yes B ? Yes No C ? Yes No D ? No Yes E ? No Yes F ? Yes No (c) Using parts (a) and (b), determine the critical path. If you get more than one critical path, please select the upper one. For example, if you have found the paths A-E-F and C-D-F, then you should select A-E-F. The critical path is ? A B C D E F −- ? A B C D E F −- ? B A F D E C (d) The project completion time is days.

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

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Humber Web Design Co. is organizing a new project to increase efficiency and improve relations with their clients. The project manager for this initiative has broken the project up into several parts as follows:

Activity	Activity Description	Immediate Predecessor	Activity time (days)
A	Identify Client Base	―	44
B	Develop Client Prospectus	―	35
C	Perform Design Analysis	―	46
D	Program Back End	A, B, C	43
E	Program Front End	A	27
F	Project Consolidation	D, E	36

(a) For the given project, fill in the nodes of the network diagram below.

Start

Finish

Time

(b) Using the network diagram, fill in the table. Make sure that you put the values in the appropriate columns.

Activity

Earliest Start (ES)

Latest Start (LS)

Earliest Finish (EF)

Latest Finish (LF)

Slack (LS-ES)

Critical Path?

? No Yes

? Yes No

? No Yes

? Yes No

If you get more than one critical path, please select the upper one. For example, if you have found the paths A-E-F and C-D-F, then you should select A-E-F.

The critical path is ? A B C D E F −- ? A B C D E F −- ? B A F D E C

(d) The project completion time is days.

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