Remote Working System In Eerp Retail Limites Computer Science Essay

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In networking the term remote working system refers basically to technologies for working from anywhere and anytime outside your office normally through internet services. These technologies allow flexible working by connecting to the corporate systems from wherever workers with rights find themselves.

Requirements of a basic remote working system

Server. A device on a network designed to manage network resources. Servers are built on a large and more powerful computer system and are dedicated to providing network functions. File servers, print servers, database and other application servers are examples. This will handle requests from the client machines on the network hence needs high specifications to meet this task.

Data backup hardware and software. In dealing with such huge amounts of data, the company will need a reliable and sizable storage medium to back up file to ensure continuality should there be any problem.

Transmission media. Refers to the physical medium to transport signals from one system to another. This includes twisted pair cable, coaxial cable and fibre optic, which delivers fast transfer rates and considered to be more secured.

Network communications equipment. Routers, hubs, wireless hubs, repeaters and wireless network interface cards (WNIC) are all equipments to connect the computers, notebooks and PDA's (personal digital assistance) to the network. For the company to create a wireless network, a WNIC will be needed on the computers and a Wireless Router to broadcast the signal.

Network operating system. It is an operating system designed to allow authorized computers have access onto a private network. Such computers will have access to shared files and peripherals on the network.

Advantages and disadvantages of implementing a remote working system

There are a lot of advantages in having a remote working system. Some of these include:

Increased productivity and greater employee satisfaction. Working out of the office or while mobile can improve employee satisfaction and boost worker productivity. A research by the SMF (Social Marketing Foundation) revealed remote working can increase employee productiveness by 30 percent.

Availability and sharing of information. Remote working allows computer or users on the network access to information on the network. Documents on the network could have permissions with levels of accessibility and resources to know who accessed, edited or created a file by the network administrator.

Travel time and cost. Time and money spent on commuting to work can be saved for other expenses.

Cost efficiency. Cost is cut on office space, heat and lighting and over overheads as some workers work from other locations.

Employees have flexible work hours thereby reducing stress and as it said "a healthy worker, a happy worker".

Some disadvantages concerning this system include:

Technology reliant. Should there be a breakdown or crush of the system / network, the company might come to a stand still.

Security. The remote network system is more susceptible to attack as the network is accessed outside the organisation's firewall. The presence of a wireless connection even enhances its security risks.

Since some workers work away from the office, some working policies and network access controls may be difficult to implement.

Employees working at home can be busy or distracted with other things that can appreciably turn away their attention and make their work less efficient. Often the office environment disciplines workers

Lack of motivation. Employees working from home or outside the organisation may lack motivation, feel isolated and hard to maintain the thought of being part of a team.

Benefits of implementing the system in EERP Limited

The company will benefit in diverse ways implementing this system, some of which include:

Prompt response to customers. Responses to customer needs will be speedy or faster as senior management won't be hard to reach for quotations or directions.

Have more time to work. Staff of the company with remote access to the company's system will be able to work along busy schedules, weekends and even holidays

Decision making is easier due to the availability of information database. With the collection of the company's data in a central location, making analysis or decision making can be easier, fast and accurate.

Cost reduction. Cost on office space, light and heating, and other overheads can be saved. Cost on some procurements will also be saved.

Cheaper and faster means of reaching colleagues.

Gain customer trust. As records of customer will be placed online, every worker who comes into contact with a customer will have enough information to make the customer feel understood and thought of. This will be a big advantage as happy customers recommend more people to a company.

Estimates of purchasing some equipments for the remote access system

Before we consider the cost of buying equipments

For a server:

HP Rack ProLiant DL180 G6 Quad Core E5520 Rack Server

Intel Xeon Quad Core E5520 2.26GHz

6GB RAM Installed

Embedded SATA Raid Standard RAID 0,1,10

Takes Hot Swap 3.5 Inch

Estimated price: £1655.96. Vat included.

Printer:

Lexmark C736N Colour (A4) Laser Printer (Base Model + Networked) 256MB 1200dpi 33ppm 650 Sheets PCL 5c, PCL 6, PPDS, PS3

Colour Printer

Paper Size: Maximum Paper Size A4

Memory (Maximum): 256MB (1280MB)

Network Ready: Yes

Network Interface: Standard

Case Colour: Grey

Dimensions: 43.5cm (W) x 47.0cm (D) x 45.0cm (H) ­ Weight 25.7kg

Including vat: £659.97

Router:

Device Type: D-Link DI624 Wireless router

Connectivity Technology: Wireless

Data Link Protocol: IEEE 802.11b+, Fast Ethernet, Ethernet, IEEE 802.11b, IEEE 802.11g

Frequency Band: 2.4 GHz

Data Transfer Rate: 54 Mbps.

Max Range Indoors: 330 ft.

Max Range Open Space: 1310 ft.

Routing Protocol: RIP-1, RIP-2

Authentication Method: CHAP, Radio Service Set ID (SSID), MS-CHAP.

Task 2:

Setting up a network of computers

Setting up a network of computers file sharing and using the same peripherals on the network.

In this assignment, I used a laptop, a notebook PC, a PC and a Router with the following specifications:

Laptop 1

Manufacturer

Model

Processor

Ram

O S

Toshiba

Satellite

Intel Core i3

4.00 GHz

Windows 7 Home Premium

Laptop 2

Manufacturer

Model

Processor

Ram

O S

Hewlett-Packard

HP Pavilion dv6 Notebook PC

AMD Athlon II P320 Dual Core

3.00 GHz

Windows 7 Home Premium

P C

Manufacturer

Model

Processor

Ram

O S

Acer

P5161 Desktop PC

Intel Pentium 4

2.93 GHz

Windows XP Professional

Router

Make

Huawei EchoLife Home Gateway

Components needed for this connection include:

Network adapters: Also called Network Interface Cards connects computers to a network to enable communication. The laptop and notebook used in my work had manufacturer installed NICs but the Desktop PC was the one I had to installed a new one. This was done by opening the machine, plugging the card in a spare PCI expansion slot and installation after reset.

Routers / Access points: This device connects computers together and has also has a capability of connecting your small network to a larger one, example the internet.

Modems can also be used which like some routers can send and receive information over telephone lines.

Network cables: Network cables are used to wire computers to each other and related hardware devices such as routers, hubs, modems. In my work a reasonable length cable fitted with an RJ45 connector was used to connect the desktop PC to the router.

Security for the network connectivity

IP configuration

SSID configuration

Router configuration

Task 3:

D-Link DI624 Wireless router

Frequency Band:

Data Transfer Rate:

Max Range Indoors:

Max Range Open Space:

Routing Protocol:

Authentication Method:

Features:

Expansion / Connectivity Interfaces

OS Required

Limitations:

Priced:

2.4 GHz

54 Mbps.

330 ft.

1310 ft.

RIP-1, RIP-2

CHAP, Radio Service Set ID (SSID), MS-CHAP.

Full duplex capability, Firewall protection, BOOTP support, DHCP support, NAT support, VPN support, DMZ port.

LAN: 4 x Ethernet 10Base-T/100Base-TX - RJ-45, 1 x Ethernet 10Base-T/100Base-TX - RJ-45.

Microsoft Windows 98 Second Edition / Windows ME, Microsoft Windows 2000 / XP.

Limitations: Does not work with SBC DSL Speed stream 5100a. £35.00 in a computer shop in South-east

London. Price includes tax and shipping.

BELKIN Wireless Router - 802.11 n, 4-port switch

Standards:

Transfer rate:

Frequency range:

Routing protocols:

Safety features:

Management features:

Connectivity:

Configuration requirements:

Accessories:

Price:

Ethernet, Fast Ethernet, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n (draft)

300 Mbps

2.4 GHz

TCP/IP, PPTP, UDP/IP, PPPoE, FTP, DHCP, DNS

Firewall protection, dynamic IP address assignment , DHCP support, NAT support, auto-negotiation, auto-uplink (auto MDI/MDI-X), Stateful Packet Inspection (SPI), DoS attack prevention, MAC address filtering, VPN pass-through, firmware upgradeable, SNTP support, MIMO technology, Wi-Fi Protected Setup (WPS), DHCP server, WEP 64/128-bit WPA WPA-PSK WPA2 WPA2-PSK WPS

Remote Management Protocol: HTTP

4 x network - Ethernet 10Base-T/100Base-TX - RJ-45, 1 x network - Ethernet - RJ-45 ( WAN ), 1 x network - Radio-Ethernet

Linux, Apple MacOS 9.x, Apple MacOS 8.x, Apple MacOS X 10.x, Microsoft Windows 98/ME/NT/2000/XP, Microsoft Windows Vista

N Wireless Router, quick installation guide, Personal Network Assistant CD, user manual on CD, power supply, RJ45 Ethernet networking cable

£31.99 in Currys.

LINKSYS E1000 Wireless Router

Standards:

Frequency range:

Routing protocols:

Safety features:

Management features:

Connectivity:

Configuration requirements:

Accessories:

Price:

802.11b/g/n

2.4 GHz

TCP/IP

Safety features: WPA/WPA2 security settings.

Cisco Connect software

4 x Gigabit out, 1 x Gigabit In

Internet Browser: Internet Explorer 6, Safari 3 or Firefox 2 for optional browser-based configuration

PC: Wireless network enabled PC with CD or DVD drive, running Windows XP SP3, Windows Vista SP1 or Windows 7

Mac: Wireless network enabled Mac with CD or DVD drive, running OS X Tiger 10.4.11, Leopard 10.5.8 or Snow Leopard10.6.1

Linksys E1000 Wireless-N Router, Setup Software and User Guide on CD-ROM, Ethernet network cable, Quick installation Guide, Energy Star power adapter

PC World £54.99

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