Transcript Document

Target Audience, Hosting and
Business Issues
Recap ISP’s
 Internet Service Providers (ISP’s)
 telecommunications companies that provide
home or business users with a connection to
the Internet.
 Organisations that provide Internet Services
 Must have a local Point of Presence (PoP)
 Charges and service vary considerably
 Application Service Providers (ASP’s)
 Application Service providers (ASP’s) offer a
more complete service support than ISP’s.
ISP / ASP
Two reasons to have one
Dial up to connect to the internet
Web space, email, domain name etc.
Home users these are usually the same
ISP
Usually free (http://uk-bargains.co.uk/freeinternet.html)
Business Users may not be the same
Different services, different rates
What services?
Connection to The Internet
Email accounts (how many)
Web Space (how much)
Technical Help(free?)
Fixed / varied IP Address
Other Items?
ISP Services
 Charges
Most are free these days, except for the cost of phone
calls. There are still a few like ClaraNET and Demon
charging for a premium service or unmetred access.
Other way of paying in SurfTime or unmetred (pay a set
fee each month – ‘AnyTime’)
ISP Services Cont
 Performance
Paid-for ISP’s generally okay
Unmetred services can be variable depending on
time of day and number of users connected.
Unmetred services failing to cope with large
numbers of users shortly after startup (BT,
RedHotAnt)
Others having to restrict the rate at which users
sign up (NTLworld staggered release of sign-up
CD’s)
ISP Services (Cont)
 User Support
Support web pages are becoming more common
and more detailed, to answer the most frequentlyasked questions.
Services charging monthly fees tend to offer localrate/freephone support numbers (Demon, Clara, etc)
Free/unmetred services are using premium-rate
numbers to subsidise the service (e.g. 50p a minute)
The quality of tech support can vary widely
BT have been slated with BT Anytime
See what I mean????
Internet Services (Cont)
 Other facilities they offer such as web page
space and support
Most offer web space (between 5Mb and 50Mb)
Basic services (restricted /cgi-bin access, and
logging if you’re very lucky).
Dedicated games servers (Clara, Nildram,
Demon)
Web filtering for family usage (LineOne, AOL etc)
Anti-spam protection
Portal-type home pages etc.
What about ISP’s for businesses?
All of the above plus…
Web Design Services
Choice of Hosting Services – (Unix, Linux
or NT)
E-commerce
Secure Sites
Domain Names
Which ISP should business use?
Decide what is needed
Decide how much you can spend
Surf and find one / Ask peoples opinions
Get the most for your money
http://www.cheapest-isp.co.uk
http://www.uk-isp-directory.co.uk
Servers
Recap - Server and Client Side
Web Servers are used to store, manage
and supply the information on the World
Wide – Server Side
The front-end experience workstation/phone/PDA/kiosk from which a
user accesses a server is described as a
client
How to set up a web server
 A server / Server Software / Operating system
http://www.serverwatch.com
 Any computer can be a server (the spec
depends on the software you will use)
http://www.howstuffworks.com/web-server.htm
 Connection to the internet
 IP Address / Domain Name
 Entry in Domain Name Server
 Or…Some ISP that will do the lot for you
Operating System..
Windows
Unix
Linux
The difference????..the price and what
you run on them….
Server Software
 Runs on server. Examples include
Personal Web Server (Windows 98)
IIS (Windows NT/2000/XP/2003)
Apache
iPlanet Web Server
Roxen
Zeus
 The difference…
Can’t run .net on apache yet
Usually run PHP on a non IIS server
You have the server..whats next??
 Connection To The
Internet..
 IP Address…
Usually done through an ISP
Allocated in this country by
RIPE (www.ripe.net)
Next Stage…Domain Name
 Something that tells the person reading who
or what you are
 Range From £1 to £5 million
 Usually done through an ISP
 Fee paid to ISP (varies)
 The ISP pay a fee to registering agency
www.easily.co.uk
http://www.domainnameshop.co.uk/
http://www.names.co.uk/
http://www.dotcom.com/
Domain Name Server
 DNS is the way that Internet domain names
are located and translated into IP addresses.
 Maintaining a central list of domain name/IP
address correspondences is impractical, the
lists of domain names and IP addresses are
distributed throughout the Internet in a
hierarchy of authority.
 There is a DNS server within close proximity
to your access provider that maps the domain
names in your Internet requests or forwards
them to other servers in the Internet.
Web Addresses for registries and related
sites
 Nominet UK (www.nic.uk)
 Internic - http://www.internic.org
 Asia/Pacific Region (APNIC - www.apnic.net)
 Americas and Southern Africa Region (ARIN www.arin.net )
 Europe and surrounding areas (RIPE www.ripe.net )
 http://www.norid.no/domreg.html
 http://www.netnames.co.uk
Technical Issues For A Web Server
 Security
Web servers are a shop-front to any organisation, and
very high-profile systems.
Web site defacement is a major problem, as is
unauthorised access to data or misuse of the server
itself.
http://www.w3.org/Security/Faq/
http://www.cert.org/
 Reliability
the machine will be public-facing, so you cannot afford
to be down for long, if at all.
Backups
Technical Issues For A Web Server
 Bandwidth
Have you got enough to cope with expected traffic, can
you buy more if it’s needed, and if it’s capped in any
way, how much is excess usage bandwidth going to cost
?
 Performance
Are the machine and the software man enough for the
job in hand ? Can they be easily scaled up to cope with
increased workloads ?
Management Issues For A Web Server
 Purchase Cost
 Running Cost
 Content Management
There’s no point having a web site if you’re not going
to bother keeping it up to date.
Maintenance is neglected all too often, leading to
“cobweb sites”.
 Internet Ethics
Is the material likely to cause offence in some
jurisdictions (remember, you may be targeting your
material at one country, but be visible globally)
Yahoo French Auction selling Nazi memorabilia
Management Issues For A Web Server
 Legal issues
Copyright, intellectual property, libel, data protection,
privacy policies, security policies
 Information leakage
can you afford to risk certain data being exposed via
your web server ? This is especially a problem for sites
wanting to run web site and intranet from a single
machine – NOT recommended.
 Staff Cost
Management Issues For A Web Server
(Cont)
Especially Ownership
Raising a web site can turn a political “turf war”
into a bloodbath unless handled properly.
Responsibility for individual aspects of the site
(content management, page editing, provision
of material etc) needs to be sorted out from day
one.
This issue kills more web sites than any other
management issue.
Where to Start for a business?
Start with a web page…
Dreamweaver
Frontpage
A builder supplied by an ISP
Its an e-commerce presence
A good and cheap option to get a business
on line
Via an ISP
What will an ISP do for business??
Charges
Most will charge extra for their business
services. British ISP’s are generally more
expensive than American ones
Performance
Business customers generally expect, and
get, better performance as they’re paying
more.
ISP For Business (Cont)
Web page hosting, facilities and web
page design
Full cgi-bin access
better logging
higher-performance web servers with more
bandwidth
database services
improved security
ISP For Business (Cont)
 What else?
leased line services
domain hosting
Consultancy
e-commerce services
SSL-enabled space
 User Support
higher-quality support
direct access to supervisors/network engineers
call-outs for rented equipment.
E-Commerce Options – where next??
 You have your little site…
 Decisions to make before the project grows! Do
you…...
Go In-house - grow your own team without any help?
Go In-house with some help from an organisation like an
ISP or web design company?
Link a shopping cart package to your existing web
pages?
Target audience
 You have a global audience
- Business and use comes from many countries
- Designers therefore must address an international
community with many cultures
 Community population on the Internet
- 1997 USA & Canada 80% of the population
- 1999 USA & Canada drop to 55%
- 2000 50% USA & Canada, and 50% Overseas
- 2005 projection 80% of users will be non
America
- 2010 projected figures world wide are: 200m USA,
200m European, 500m Asia, 100m rest of the world
(Source: Designing Web Usability - Nielsen 2000)