Advantage Energy Technology Data Center Migration Advantage Energy Technology is
ID: 469858 • Letter: A
Question
Advantage Energy Technology Data Center Migration Advantage Energy Technology is one of five national software companies that provide an accounting and business management package for oil jobbers and gasoline distributors. Recently, the company has decided to migrate its large data center to a new office location. The data center provides clients with remote access to a complete suite of application software system, and Advantage Energy Technology has held a previous competitive advantage in its industry due to its trademark reliability in regards to information technology (Larson, 2013). Migration Details. Brian Smith, the network administrator at Advantage Energy Technology, has been given the responsibility of implementing the migration, and has compiled the following data:
#
Task Name
Optimistic
Duration
Likely
Duration
Pessimistic
Duration
Immediate
Predecessor
Critical Path
1
AET DATA CENTER MIGRATION
54
68
92
-
-
2
Team Meeting
0.5
1
1.5
-
YES
3
Hire Contractors
6
7
8
2
-
4
Network Designs
12
14
16
2
-
5
Ventilate System
-
-
-
-
-
6
Order Ventilation System
18
21
30
2
-
7
Install Ventilation System
5
7
9
6
-
8
New Racks
-
-
-
-
-
9
Order New Racks
13
14
21
2
YES
10
Install Racks
17
21
25
9
YES
11
Power Supplies and Cables
-
-
-
-
-
12
Order Power Supplies & Cables
6
7
8
2
-
13
Install Power Supplies
5
5
11
12, 16
-
14
Install Cables
6
8
10
12, 16
YES
15
Renovation of Data Center
19
20
27
3, 4
-
16
City Inspection
1
2
3
3, 7, 10
YES
17
Switchover Meetings
-
-
-
-
-
18
Facilitates
7
8
9
14
-
19
Operations / Systems
5
7
9
14
-
20
Operations / Telecom
6
7
8
14
-
21
Systems and Applications
7
7
13
14
-
22
Customer Service
5
6
13
14
YES
23
Power Check
0.5
1
1.5
13, 14, 15
YES
24
Install Test Servers
5
7
9
18, 19, 20, 21, 22, 23
YES
25
Management Safety Check
1
2
3
7, 23, 24
YES
26
Primary Systems Check
1.5
2
2.5
25
YES
27
Set Date for Move
1
1
1
26
YES
28
Complete Move
1
2
3
27
YES
Based on these estimates and the resultant expected project duration of 69 days, the executive committee wants to know what is the probability of completing the project before a scheduled time (Ts) of 68 days?
Response 1. ANSWER NEEDED
The significance of this project has the executive committee very concerned. The committee has decided that more analysis of the duration of each activity is needed. Prior to conducting that effort, they have asked the network administrator to calculate what the expected project duration would have to be to ensure a 93 percent chance of completion within 68 days.
Response 2. ANSWER NEEDED
Accounts Payable System.
The sales department of Advantage Energy Technology has been concerned with a new start-up company that is about to release an accounts payable system. Investigation indicates that this new package will provide competitive features with products available at Advantage Energy Technology, and in some cases, exceeding current capabilities. The senior applications developer, Tom Wright, has been tasked with analyzing, designing, developing, and delivering a new accounts payable system for customers.
Complicating the issue of a new product release is the concern from the sales department relating to Advantage Energy Technology’s recent inability to meet promised delivery dates. The sales teams have convinced the company CEO that a significant marketing effort will have to be launched in order to convince customers that the new Advantage Energy Technology product will be worth the wait. Consequently, the following actions have been decided: estimating efforts of software developers will be tightened, use PERT techniques to generate probabilities associated with delivery dates, and incorporate new estimating procedures. Results of these actions can be viewed below:
#
Task Name
Optimistic
Duration
Likely
Duration
Pessimistic
Duration
Immediate
Predecessor
Critical Path
1
ACCOUNTS PAYABLE SYSTEM
-
-
-
-
-
2
Planning Meeting
1
1
2
-
YES
3
Team Assignments
3
4
5
2
YES
4
Program Specifications
-
-
-
-
5
Customer Requirements
8
10
12
3
YES
6
Feasibility Study
3
5
7
5
-
7
System Analysis
6
8
10
5
YES
8
Prelim Budget & Schedule
1
2
3
7
YES
9
Functional Specification
3
5
7
7
YES
10
Prelim Design
10
12
14
9
YES
11
Configuration & Perf Needs
3
4
5
10
YES
12
Hardware Requirements
4
6
8
11
YES
13
System Specifications
5
7
9
10
-
14
Detailed Design
12
14
16
12, 13
YES
15
Program Specifications
8
10
12
14
YES
16
Programming: First Phase
27
32
37
15
YES
17
Documentation
14
16
18
10
-
18
Prototype
-
-
-
-
19
Development
5
7
9
16
YES
20
User Testing & Feedback
12
14
16
19
YES
21
Programming: Second Phase
10
12
14
16
-
22
Beta Testing
18
20
22
21
-
23
Final Documentation Package
9
10
11
17, 20
YES
24
Training Package
4
5
6
21 SS, 23
YES
25
Product Release
3
5
7
22, 23, 24
YES
Based on these estimates and the critical path, the project duration is estimated at 149 days. But, a salesman at Advantage Energy Technology in the Southeastern Region has discovered that the competing accounts payable package is scheduled for delivery in 145 days. The sales force is very anxious to beat the delivery time of the competing product. The executive committee ask the senior applications developer for an estimated probability of reducing his expected project duration by two days.
Response 3. ANSWER NEEDED
The executive committee is advised by the senior applications developer that after all the estimating was completed, he determined that one of his two critical systems analysts might have to move out of the area for critical family reasons. The department is still very confident that the original delivery date of 149 days can be met with staffing rearrangements, assistance from subcontractors, and some senior level involvement.
This news is very disconcerting to the committee and the sales staff. At this point, the committee decide that based on the most recent delivery performance of Advantage Energy Technology, a modified, comfortable delivery date should be communicated to the customer clients. The senior applications developer is asked to calculate what the expected project duration would have to be to ensure a 98 percent chance of completion within 160 days so Advantage Energy Technology can publish and communicate such dates to clients.
Response 4. ANSWER NEEDED
#
Task Name
Optimistic
Duration
Likely
Duration
Pessimistic
Duration
Immediate
Predecessor
Critical Path
1
AET DATA CENTER MIGRATION
54
68
92
-
-
2
Team Meeting
0.5
1
1.5
-
YES
3
Hire Contractors
6
7
8
2
-
4
Network Designs
12
14
16
2
-
5
Ventilate System
-
-
-
-
-
6
Order Ventilation System
18
21
30
2
-
7
Install Ventilation System
5
7
9
6
-
8
New Racks
-
-
-
-
-
9
Order New Racks
13
14
21
2
YES
10
Install Racks
17
21
25
9
YES
11
Power Supplies and Cables
-
-
-
-
-
12
Order Power Supplies & Cables
6
7
8
2
-
13
Install Power Supplies
5
5
11
12, 16
-
14
Install Cables
6
8
10
12, 16
YES
15
Renovation of Data Center
19
20
27
3, 4
-
16
City Inspection
1
2
3
3, 7, 10
YES
17
Switchover Meetings
-
-
-
-
-
18
Facilitates
7
8
9
14
-
19
Operations / Systems
5
7
9
14
-
20
Operations / Telecom
6
7
8
14
-
21
Systems and Applications
7
7
13
14
-
22
Customer Service
5
6
13
14
YES
23
Power Check
0.5
1
1.5
13, 14, 15
YES
24
Install Test Servers
5
7
9
18, 19, 20, 21, 22, 23
YES
25
Management Safety Check
1
2
3
7, 23, 24
YES
26
Primary Systems Check
1.5
2
2.5
25
YES
27
Set Date for Move
1
1
1
26
YES
28
Complete Move
1
2
3
27
YES
Explanation / Answer
In order to find the probability of completing the project within 68 days, we have to calculate The Z value, I.e ., Converting the given question into standard Normal distribution
Z= (X-Mean)/ SD,
Where ,
X is 68 days ( We are going to find the proabbility of finishing the project within 68 days)
Mean is 69 Days, It is given in the question , the expected duration of completing is 69 days
SD, the standard deviation, which we have to calclulate
Where SD= Square root (Sum of each ((Tp-To)/6)2 ) in the critical path. ( Tp is the pessimistic time and To is the optimistic time)
The calcualtion is given below
Z= (X-Mean)/ SD,
Z= (68-69)/2.57
Z= -1/2.57 = -0.38910
The probability of finishing the job within 38 days is P(Z<-0.3891) =
= 0.5- Table value of Z from 0 to 0.3891
=0.5- 0.1517 = 0.3483
I.e . 34.83%
# Task Name Optimistic Likely Pessimistic Immediate Critical Path Standard Deviation Duration Duration Duration Predecessor 1 AET DATA CENTER MIGRATION 54 68 92 - - 2 Team Meeting 0.5 1 1.5 - YES 0.027777778 3 Hire Contractors 6 7 8 2 - 4 Network Designs 12 14 16 2 - 5 Ventilate System - - - - - 6 Order Ventilation System 18 21 30 2 - 7 Install Ventilation System 5 7 9 6 - 8 New Racks - - - - - 9 Order New Racks 13 14 21 2 YES 1.777777778 10 Install Racks 17 21 25 9 YES 1.777777778 11 Power Supplies and Cables - - - - - 12 Order Power Supplies & Cables 6 7 8 2 - 13 Install Power Supplies 5 5 11 12, 16 - 14 Install Cables 6 8 10 12, 16 YES 0.444444444 15 Renovation of Data Center 19 20 27 3, 4 - 16 City Inspection 1 2 3 3, 7, 10 YES 0.111111111 17 Switchover Meetings - - - - - 18 Facilitates 7 8 9 14 - 19 Operations / Systems 5 7 9 14 - 20 Operations / Telecom 6 7 8 14 - 21 Systems and Applications 7 7 13 14 - 22 Customer Service 5 6 13 14 YES 1.777777778 23 Power Check 0.5 1 1.5 13, 14, 15 YES 0.027777778 24 Install Test Servers 5 7 9 18, 19, 20, 21, 22, 23 YES 0.444444444 25 Management Safety Check 1 2 3 7, 23, 24 YES 0.111111111 26 Primary Systems Check 1.5 2 2.5 25 YES 0.027777778 27 Set Date for Move 1 1 1 26 YES 0 28 Complete Move 1 2 3 27 YES 0.111111111 Sum 6.638888889 SD 2.576604139Related Questions
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