Setting Up Computer Systems In A Village Computer Science Essay

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A non-profit organization has established a small village primary school. The teachers are using white chalk to present in the lesson to the pupils. They need to keep all the students record and records can't destroy, it have many documents put it into storage room, but it's no more space for coming document right now. The senior management of the school applies the government funding for purchase computers and other equipments to improve the performance and handle the entire document as electronic media format.

They have received government funding specifically to buy a network of 8 desktop computers with Internet connection, two interactive whiteboards for classroom use, a networked laser printer and a database system for school administration. The senior management requests me to handle this project.

Assumption:

There are only two very old computers and no network connection in village school.

The village school has about 60 students and 3 teachers.

The teachers in the village school have only the basic knowledge to use the computers.

It have 3 Class room, one will be change it to computer room. And they have a staff room. Room to room distant is not over 100 meters.

ISP companies are available to provide Internet Connection Service in that location

The amount of the government funding is up to HKD350,000.

They need to print out about 50000 pages per year (about 40000 black and white and 10000 colors).

Task 1

1.1 Feasibility Study

1.1.1 Requirement

Not more than 6 months to set up the computer and network system in a small village primary school.

The system requires the below items:

8 desktop computers with Internet connection

2 interactive whiteboards for classroom use

1 networked laser printer

school administration software

The system allows the students to:

a) Access the Internet for research purposes, and for learning materials.

b) Prepare written assignments and print them out

The system allows the teaching staff to:

a) Keep records of student attendance at classes and marks for tests, exams and assignments.

b) Access the Internet for teaching materials that can be used on the interactive whiteboards.

1.1.2 Technical factors

We decided to use Web-based application software, and all data are storage at service provider. They will provide data backup and make sure 99.9% function. We don't need to invest in any server at school.

1.1.2.1 The main hardware involved in the project:

Client Computer (Workstation):

We are going to choose a desktop computer instead of notebook, because it can use a bigger monitor and more security(less risk for stolen).

Suggested item:

Lenovo ThinkCentre M90p Tower

Specification:

Intel® Core™ i5-650 Processor (3.20GHz 1333MHz 4MB)

Genuine Microsoft Windows 7 Professional 32bit

2 GB PC3-10600 DDR3 SDRAM 1333MHz

320GB 7200rpm Hard disk

16x DVD-/+ RW

Network Printer

Due to their require buying a networked laser printer, not ink jet printer. We are providing two opinions and we select a brand name (HP) to compare.

.

Option 1: Black & White laser printer with network function

Option 2: Color laser printer with network function

(Option 1)

B/W. laser printer

HP LJ P3005dn(Q7815a)

(Option 2)

Color laser printer

HP CP3525dn(Cc470a)

Printing speed (B&W)

Printing speed (Color)

Up to 33 ppm

/

Up to 30 ppm

Up to 30 ppm

Printing type

Black and White

Color, B&W

Printing resolution

Up to 1200 x 1200 dpi

Up to 1200 x 600dpi

Purchase price

Middle

High

Running cost

Low

Middle

Wireless network

No

Yes

Maintenance cost

Low

Low

PPM = Pages Per Minute DPI = Dots Per Inch

Recommendation for network printer:

Option 2 >>The HP CP3525dn (cc470a) color laser printer is recommended.

The black toner can print up to 5000pages per toner.

Other 3 color toner can print up to 7000 pages per toner.

Interactive Whiteboard

Option 1: touch-based IWB

(Figure: 1)

Transform lessons into creative opportunities to inspire learning with a library of interactive tools that allow you to make notes, draw diagrams, and illustrate your point with digital ink. Call on two students to collaborate on the board simultaneously with the FXDUO's multi-touch technology and intuitive Starboard Software.

Advantages:

It is easy and natural to use.

No need to use other equipment

Have 16 function shortcut buttons

Disadvantages:

The higher cost of the device.

Must be wall mount, not moveable.

Must require a projector to operate

Option 2: Pen-based IWB

(Figure: 2)

Simply connect it to a computer and LCD projector, and control the board using the software call easy-to-use Starboard Software. This board only supports the wireless electronic pen to ensure pinpoint accuracy by eliminating unintended interaction from body contact or other objects.

Advantage:

It is more accuracy then use finger.

As a natural pen and the screen will display at the same time.

It supports more than one pen at the same time.

Disadvantage:

The higher cost of the device.

The specific pen is required.

Must require a projector

May need to replace the sensor.

Recommendation for IWB system:

Pen based version of Interactive whiteboard will be recommend.

Hitachi FX-77Gâ…¡ Interactive Whiteboard + Hitachi CP-D10 Projector

1.1.2.2 The main software involved in the project:

Operation System (OS) in client computer:

Microsoft Windows 7

Windows 7 is a better performing, more users friendly, more stable and more secure operation system than before. It has 4 versions, but mainly it is three only. Which are Home Premium, Professional and Ultimate.

Three main editions are compared as shown:

Home Premium

Professional

Ultimate

Desktop navigation improvement

Yes

Yes

Yes

Start programs faster and easily

Yes

Yes

Yes

Web experience improvement (IE8)

Yes

Yes

Yes

Create a home group network easily

Yes

Yes

Yes

Run XP program (XP mode)

No

Yes

Yes

Connect to company network with Domain Join

No

Yes

Yes

Full-system backup and restore

No

Yes

Yes

Protect data on storage devices against loss- BitLocker

No

No

Yes

Multi-language (switch between 35 languages)

No

No

Yes

Recommendation for client OS:

MS Windows 7 Ultimate edition mostly is the stronger and the best one, but usually it won't bundle with workstation computer that I recommend and professional version can be considered too.

Software package for data processing

Microsoft Office 2010

Three main editions are compared as below:

Home and Student

Home and Business

Professional

Word 2010

Yes

Yes

Yes

Excel 2010

Yes

Yes

Yes

PowerPoint 2010

Yes

Yes

Yes

OneNote 2010

Yes

Yes

Yes

Outlook 2010

No

Yes

Yes

Access 2010

No

No

Yes

Publisher 2010

No

No

Yes

Recommendation for data processing software:

MS Office 2010 Home and Student Version is recommended, because students they only need to use word, excel and PowerPoint mainly. And if they need to receive E-mail, they can use window Mail which is built in Windows 7 operating system and they don't need to use Access because they chose to use a very strong school admin software can handle it.

Software for school administration

We recommend a complete school management software solution by Renweb.com that is a one database on the web software. The functions are including bookstore management, event calendar, student database, staff management and more…The more details in Administrator, Classroom, Home's benefits. It's showing in Figure 3,4,5.

Advantage:

Web base, no need to invest in server equipment.

Strong data encryption and virus protection

Daily backup by renweb.com

24/7 technical support if any problem

Free data conversion at the beginning.

6 month money back satisfaction guarantee.

Can access at home by Parents, students, authorize people.

Centralized all the database, no need to re-enter data

Reduce paper from classrooms

Parents can use this software to check their children result and other information.

Disadvantage:

Need to pay for storage and maintain fee.

Figure: 3

Figure: 4

Figure: 5

Anti Virus software

Antivirus software is protecting computer attack by any virus, malwares and spam. Due to our database virus protection is offering by renweb.com. We just need to install in our clients computer. And I suggested downloading a Free Avast! Antivirus 5.0, it's one of the three best free antivirus in the market. It can save our running cost.

Suggested item:

Avast! Free Antivirus 5.0

1.1.2.3 The networking safety

Firewall

We are not recommended software firewall, so mainly I will explain and introduce a hardware firewall. A hardware firewall mostly is added between modem and router to act as monitoring and filtering function.

Advantages:

Hardware firewall built in own processor, so it is running faster than software firewall.

Hardware firewall have more function than software and more reliable.

Support and protect unlimited users in the same network.

Traffic can restrict for incoming or outgoing.

Disadvantages:

Hardware firewall may be difficult to configure.

Recommendation for firewall:

Sonicwall TZ-200 firewall

1.1.3 Operational feasibility

Internet Service Plan

Static IP with Symmetric bandwidth

We need a Internet service plan with one static IP and symmetric bandwidth. It means both downstream and upstream are the same speed.

Suggestion:

PCCW 10M up/down service plan with 1 fixed IP addresses.

Network Scenario

Pure Wired Network

Figure: 6

On Figure: 6 that is the network diagram that show how this school network going to setup. Six of the desktop computers, color laser printer and the network equipment will put it in the computer room. A projector and an IWB device and one desktop will put them in each classroom. A cat6 network cable will wire from computer room's Giga switch directly connect to classroom desktop computer.

In the coming future if this school want to change it to wireless network for portable device, it just need to add a 5 ports switch and a wireless access point in each classroom. But now I am not recommending adding it in this moment.

1.1.4 Economic feasibility

Development costs

Hardware

Model

Unit Price (HKD)

Qty

Total Amt. (HKD)

Workstation

Lenovo ThinkCentre M90p Tower

$6,599

8

$52,792

LCD Display

Lenovo ThinkVision L2250P

$1,633

8

$13,064

Device for IWB

Hitachi FX-77Gâ…¡Interactive Whiteboard

$8,675

2

$17,350

Projector

CP-D10 Projector & CPD10WALLARM mount

$14,686

2

$29,372

Firewall

SonicWall TZ-200

$3,500

1

$3,500

Switching Hub (16ports)

AsusTek GigaX 1016P 16Port 100/1000 switch

$740

1

$740

Laser Printer

HP CP3525dn (cc470a)

$10,388

1

$10,388

Cable & tools

Cat 6 cable 1000fts with tools

$700

1

$700

Sub-total: $127,906

Software

Edition / Version

Unit Price (HKD)

Qty

Total Amt. (HKD)

School admin Software by Renweb

Web Base with 75 User Cals

$100,000

1

$100,000

Avast Antivirus Free edition

Version 5.0

0

8

0

Microsoft Windows 7

Professional

0

8

0

Microsoft Office 2010

Home and student (3 Users)

$1,099

3

$3,297

Sub-total: $103,297

Engineering Task

Handled by

Total Amt. (HKD)

Setup the internet connection network

ISP company

$380

Router and Firewall configuration

Team manager of network setup task

$1,200

Cabling

Team manager of the cable wiring task

$7,800

Sub-total: $9,380

Operating costs

Item

Description

Estimated annual charge (HKD)

Toner cartridges

Black toner(5000pages)

3 other color (7000 pages)

$18,900

Maintenance fee for hardware

Workstation, printer, network device and IWB device.

$7,200

Service charge of ISP

For the internet connection service

$6,000

Charge of the lamp for projector

The life of lamp is 4000 hours. Assume the usage is 2000 hrs per year.

$2,000

School admin software storage and maintain

Data storage and support

$24,000

Sub-total: $58,100

Total amount for the development (HKD):

$127,906 + $103,297 + $ 9,380 = $240583

Total operation cost per year (HKD): $58,100

Cost / Benefit Analysis

Tangible factors

Tangible cost

Tangible cost includes the development cost and operation cost which are mentioned in 1.1.4.

Moreover, the billing amount of the electrical power must be increased.

We estimate that the billing amount will be increased 5,000 per month.

Tangible benefit

Save the cost of the markers and brushes for the whiteboard.

Save the cost of the rental charge for the old document because all of the document can be scanned and saved in the hard disk or DVD.

Cost and Benefit analysis

The Cost / Benefit diagram is as below shown:

From the above diagram, the breakeven point will happen in the 12th year.

As the non-profit organization, actually it is not the main point to be concerned. The intangible benefit should be emphasized more.

Intangible factors

Stop to use the whiteboard markers that the volatile ink make the bad smell and cause the potential sensitive disease of throat.

Improve the efficiency of the data searching for the student record.

The pupils feel more interesting in the lesson.

Let the pupils touch more fresh things via the internet.

Rise up the reputation of the village school.

Risk Assessment

Risk 1 : Robbery

What effect : The completion date of the project will be postponed and the cost of the project will be increased.

Action : Lockup all of software and hardware in the store room. Only the delegated staff keeps the key of the store room.

Recommendation : Count the items in the store room and ensure the door is locked before the delegated staff leaves the school.

Who response : the delegated staffs who are in charge of the administration in the village school.

Action start time : When the suppliers deliver the software and hardware to the village schools.

Risk 2 : Mishandling of the hardware (computers, broadband router, Switch and so on) and the software media (Setup CD/DVD/Floppy disk)

What effect : The completion date of the project will be postponed and the cost of the project will be increased if there is any damage or loss in the software and hardware.

Action : Instruct the delegated staff how to handle the hardware and software media.

Recommendation : Make the backup copy of the setup CD/DVD/Floppy disk before the installation.

Who response : Project Engineer

Action start time : When the orders are issued to the supplier.

Risk 3 : The setup position of the monitors and screen

What effect : Staffs and pupils use the computers for a long time. It may cause the pain, discomfort or injuries to hands, arms, from overuse, improper use or from poorly designed workstations.

: Headaches may occur if the lighting or screen image is poor.

Action : Workstation and equipment set to ensure good posture and to avoid glare and reflections on the screen.

: Lighting and temperature suitably controlled.

: Adjustable blinds at the windows to control nature light on screen.

Recommendation : Collect the information from the staffs and teachers for the setup position.

: The chairs (height adjustable) in the computer rooms should be provided by the school for the pupils.

Who response : Project Engineer

Action start time : When the computers are set up in the computer room.

Risk 4 : Improper cleaning method to computer / equipment

What effect : It cause the equipment fail if the staff (who clean) may spray the cleaning chemicals into the hardware through the ventilation holes

Action : Instruct the correct cleaning method and steps to the cleaning staff.

Recommendation : To review the working status of the cleaning staff at least once per month.

Who response : The delegated staffs who are in charge of the administration in the village school.

Action start time : After the hardware has been set up.

Risk 5 : Improper use of computers from users

What effect : Cause the system corruption and the data loss

Action: : Scheduled backup task is necessary to the operation system and data.

Recommendation : Training about the backup and restore procedures to the delegated staff.

Who response : Project Engineer

Action start time : Before the users start to work in the system.

Risk 6 : Attack from the internet

What effect : Cause the low performance of the network system, servers and workstations.

Action: : Firewall with the suitable policy setting is necessary in the network

Recommendation : Instruct the delegated staff to monitor the firewall log.

Who response : Project Engineer

Action start time : Before the users start to work in the system.

Risk 8 : Ventilation system (temperature and humidity)

What effect : Improper indoor condition cause the poor performance of the system and hardware fail

Action : Air conditioner need be setup in the server / computer room.

Recommendation : The temperature and humidity meter should be installed in the server / computer room for the reference.

: The delegated staff need keep the good indoor condition.

Who response : Project Engineer provides the guideline to the delegated staffs who maintain the room conditions.

Action start time : Before the hardware is set up in the server / computer room.

Risk 9 : Floodwater

What effect : If the village school is located at the lower geographic location. The floodwater cause the hardware fail

Action : To ensure the installation position of the all hardwares are higher than the estimated level of the floodwater according to the past history in the school..

Recommendation : Senior management should consider installing the water level alarm.

Who response : Project Manager collects the information from the senior management.

Action start time : Before the set up and installation of hardware.

Risk 10 : Rain water leakage

What effect : Rain water leakage from ceiling may cause the hardware fail.

Action: : Don't set up the hardware under the environment where has got the potential risk of rain water leakage.

Recommendation : Senior management need consider to undertake the mend if necessary.

Who response : Project Manager collects the information from the senior management.

Action start time : Before the set up and installation of hardware.

Risk 11 : Fire

What effect : Hardware damage by the fire accident

Action: : Fire distinguisher must be available and locate near the computer room.

Recommendation : The fire distinguisher must be inspected by the authorized agent annually.

Who response : The delegated staff who is in charge of the administration in the village school.

Action start time : Before the set up and installation of hardware.

Task 2:

2.1 Project Life Cycle Stages

The waterfall model is shown the 7 stages of the project life cycle:

2.2 Activities Dependency List

Activities

Reference

Dependent on

Duration (days)

Internet connection service, domain name application, internet router setup and configure.

A

-

45

Prepare the network device(firwall, switching hubs, network printer).

B

-

30

Indoor construction job for the cable trunk.

C

-

60

Prepare the UPS, server and workstation computers.

D

-

60

Prepare the movable wooden cabinets.

E

-

60

Prepare the projectors and the devices for IWB.

F

-

45

Prepare the Mircosoft software and installation media.

G

-

45

Cable wiring and patch panel setup in the computer room and the classrooms.

H

C

7

Connect the firewall, switching hubs and network printer in the network physically.

I

B, H

2

Connect the UPS, server and workstation computers in the computer room.

J

D, H

3

Connect the computers, projectors and the devices for IWB in the classrooms physically.

K

D, E, F, H

2

Config the firewall.

L

A, I

3

Install MS software and printer driver on the server and workstation computers.

M

G, I, J, K

3

Config the network setting for LAN and internet connection on all computers.

N

L, M

7

Config the projectors and the devices for IWB.

O

M

3

Config the server and workstations as the preparation for WebSAMS

P

M

7

Set and config WebSAMS

Q

P

60

Training

R

Q

15

User Acceptance Test

S

R

1

2.3 Activities Diagram

Task 3:

Procument Criteria

The below criteria for selecting the suitable suppliers:

3.1.1 To compare the organisation of the suppliers with the below items:

- Number of employees

- Financial status

- The experience and ability of the management

- The reputation

3.1.2 To compare the service and quality of the suppliers with the below items:

- Price and payment terms

- Supporting and maintenance

- The level of the responsibility

- The level of reliability

3.1.3 To compare the technical ability with the below items:

- The functions and features of the product

- The ability of solving the problem

3.2 Hardware and Software

The check list and the supplier specification for the hardware and software is as below shown:

Hardware

Model

Qty

Specification

Workstation

Lenovo ThinkCentre A58 Tower (with keyboard and mouse)

8

- Intel Pentium Dual-Core E5500 2.8GHz

- Memory 1GB DDR2

- Hard disk 320GB 7200rpm

- Windows 7 Professional included

- 3 years on-site maintenance included parts and labour.

LCD Display

Lenovo L1711p

9

17" viewable image size

Resolution 1280 x 1024

- 50% less mercury content than conventional monitor

Device for IWB

Onfinity CM2

2

max projection size : 150" diagonal

Active distance : 1.5m - 5m

E-pens included

Projector

Dell 1410X

2

Brightness : 2700 ANSI Limens

Resolution: XGA 1024 x 768

Lamp life : 3000 hours

Speaker : 2 Watt

Switching Hub (16ports)

TP-Link TL-SF1016D

1

16 ports 10/100M Fast Ethernet switch

IEEE 802.3x for full / half duplex

MAC address auto-learning and aging

Firewall

ZyWall 70

1

IP Sec VPN up to 100 connection

DoS and DDoS protection

Dual WAN for load balancing

Content filtering for web site

Support PPPoE, PPTP, DHCP client/relay/server

Inkjet Printer

Brother MFC-5890CN

1

A3 / A4 paper size available

10/100 base TX

64MB physical memory

B&W printing up to 35ppm, Color printing up to 28ppm.

Resolution : up to 1,200 x 6,000 dpi

Software

License type

Number of CAL

MS Windows Server 2008 Standard Edition

Open license

10

MS Windows 7 Professional

OEM version - It is bundled with the workstation computers

8

MS Office 2010 Professional

Open License

10

Trend Micro Office Scan Corporation Edition

Open License

10

Task 4

4.1 Stakeholders

Stakeholder should be a person, group, organization who is interested in the project that can be affected by their actions, objectives, and policies.

There are four parties should be involved in this project.

1> the steering committee (The senior management and the teachers' representative in the village school)

2> the project manager

The suppliers (sales engineers) of the software, hardware and internet connection service.

The team manager for the cable wiring task

From the next page, a table showing how, when, why to communicate with them.

Communication table:

Issued by

Received by

Communication Document (How)

Reason and Objective (Why)

Time (When)

Steering Committee

Project Manager

Delegation Letter

To delegate the project manager to handle a project.

When the steering committee want to start a project.

Project Manager

Steering Committee

Project Proposal

Let the steering committee understand whether the project can be undertaken.

After the delegation letter has been received by the Project Manager

Steering Committee

Project Manager

Proposal Confirmation

To approve that the project can be started.

When the steering committee accepts the proposal from the project manager.

Project Manager

Steering Committee

Stage reports

To inform the progress and the financial status after each stage of the project.

The steering committee also need decide whether the following stage can be started.

Before a new stage of the project is started.

Steering Committee

Project Manager

Project Change Request

The document describes the changed items which is not the same as the original idea of the project.

If the steering committee changes the idea or objective in the project.

Steering Committee

Project Manager

Project Termination

An official document to terminate the project.

Steering committee decides to terminate the project.

Project Manager

Steering Committee

Design Change Request

To request the change about the design and the planning of the project.

When the project manager find the original design of the project can not be realized due to any reason.

Steering Committee

Project Manager

Project Completion

To identify the project to be completed

When the user acceptance test is completed and the result is accepted.

Sales Engineers and Team manager for cabling

Project Manager

Quotation

To list the product and service provided by the suppliers.

The payment term, the trading conditions and the range of the responsibility.

When the project manager start to research for the suitable suppliers.

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