Top Banner
Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: [email protected] BCS presentation, 4 th December 2001
49

Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: [email protected]@port.ac.uk.

Dec 24, 2015

Download

Documents

Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

Mobile electronic payment systems:

Main technologies and options Carl Adams, University of Portsmouth

E-mail: [email protected]

BCS presentation, 4th December 2001

Page 2: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

2

Structure of presentation

• Overview of mobile commerce • The promise and challenges for mobile electronic

payment systems• The big challenges: micro payments + cash• Mobile payment options• Main players and stakeholders• A personal view

– Some remaining challenges– The future?

Page 3: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

3

Overview of mobile commerce

m-commerce : Mobile commerce

• “Providing e-commerce in a mobile context.” • “Using mobile technology to sell or buy items,

access business information, conduct a transaction, perform supply chain or demand chain functions.”

 

Page 4: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

4

• m-commerce: a convergence of – mobile phones (and devices) and telecoms (digital)+

– computing power +

– Internet technologies +

– applications and content provision

• Convergence coming from different directions

• eg MP3 is a mix of mobile technologies with music content and technologies

• Interesting to note: – New alliances across business sectors

– Dynamic market (+ new entrants)

– Balance of power shifting …

Page 5: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

5

Predictions and current state of play (‘where we are, and where we are going’)

There are lots of statistics ….

• Some ‘old stats’:– Global e-commerce market will be worth $1.4 trillion by 2003

(Forester Research, 1999/2000).

– By 2002, wireless subscribers with Internet access will outnumber the wired subscribers. (IDC research 1999/2000)

• However, don’t always get it right– There will be 200 million Internet users by 2002. (Intelliquest -

back in 1999)

– …. In Feb 2001best figures indicated there were 370M !

– … Also estimated that approx. 28% Internet users in US got 'turned off' e-commerce after initial use!

Page 6: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

6

o By 2005, there will be almost 1.5 billion wireless users. (Strategy Analytics - end 2000)

o By 2005, 40% of all B2C commerce will be initiated via mobile systems (Gartner Group)

o “there will be more users accessing the Internet with mobile devices than those logging on to the Internet from fixed PCs, by 2003” (Nokia, and other, equally unbiased sources) less biased sources: Global numbers of mobile phone users: in 2000, there were 570Million, in 2002/3 est 1Billion and in 2010, est 1.6 Billion (e-pso background paper 2)

[“80% of statistics are made up” (Vic Reeves)]

Page 7: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

7

Summary of ‘estimated’ figures

• e-commerce is predicted to grow considerably – even after the e-commerce bubble

• (it is expected that) m-commerce will play an increasingly important role in this growth and account for an increasing high proportion of transactions

 • m-commerce is currently in its infancy 

Page 8: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

8

Mobile payments

• “m-payments are expected to become an important part of retail payments ….” (e-pso)

(i.e. B2C)

• Reasoning: Mobile device is an ideal POS device

 

Page 9: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

9

Mobile Use

• High market penetration (up to 80% in some countries) and growing

• Existing social/cultural practice (e.g. teens + OAPs)– Including payments

Page 10: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

10

Interesting technical features

• Embedded chips that can be used to store value or authorisation and identification

• Provides other functions - communication – so does not have to rely on modems etc 

Page 11: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

11

3rd Generation looks even more promising

 

• Possibility of new products and serviceso   location based services

o   multimedia services

• Access to Internet infrastructure

Page 12: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

12

Telcos place in m-payments?(Telecommunication service providers - Telcos)

Seems well placed• Already have contact with customer base• Already offering limited payment services eg third

party billing for services• others …still act as communication providers (has

a revenue stream)

• However, to become a payment service provider need substantial changes.

Page 13: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

13

Telcos place in m-payments?Requirements for payment service provider• Legal – have to operate as a bank

– EU directives – EMI (Electronic Money Institute)

• Expand 3rd party billing services– Many more partners required (600+ for i-mode)

or• Develop Pre-pay options• Integrate with existing payment infrastructures

– Between telcos, services providers, retailers etc

• Review payment models (eg still monthly?)• Others – address extra risk

Page 14: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

14

Requirements for mobile payment system

• Robust + Secure - prerequisites

• Global, ubiquitous - Allow roaming

• Profitable- must have a business model

• Fit in with existing structures

Page 15: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

15

Mobile payment options

Types of payment

• Prepay + cash

• Debit

• Credit

• Others (tokens, loyalty schemes,LETS)– [Local Exchange Trading Systems – see

www.gmlets.u-net.com]

Page 16: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

16

Mobile payment options …Some technical options/considerations• Card based

– Smart cards, double cards …

• Software based– Thin/fat client

• Bluetooth enabled• ‘Pure’ m-commerce or adopted e-commerce• Phone, PDAs/handheld devices or PC Tablets• Others – eg Biometrics, micro payments, cash,

existing structure

Page 17: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

17

Card based• SIM card

– In GSM, identifies subscriber

• WIM (Wireless Identification Module, or WAP Identity Module)– Converts phones into payment devices– Identifies the buyer to the seller

Options• Single card (all on one)• Double card /slot (SIM and WIM)• Others … Single (Smartcard) + bluetooth

Page 18: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

18

Software based

• Server or client based

• Microsoft– Some interesting issues

Page 19: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

19

Bluetooth• Bluetooth – Rapidly becoming a global standard

for mobile communication over short distances, eg within a building.

• Uses a tiny microchip, incorporating a radio transceiver, which can be incorporated into digital devices.

• Operates within a globally available frequency band (I.e. compatible world wide).

• Potential to communicate with vending machines, and vending machines to communicate with you!

Page 20: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

20

‘Pure’ m-commerce or adapted e-commerce• Most ‘pure’ m-commerce payment systems are

prototypes – Still under development or – Limited roll-out– examples Movilpago (in Spain), GiSMO (in US), Sonera

Mobile Pay (Finland/Sweden), Telia Payit (sweden), Mobilix (Demark/ France?), Paybox (Germany)

• Key elements of the infrastructure are not in place – Eg Bluetooth terminals

• Different, incompatible, options - the ‘Betamax’ effect

Page 21: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

21

Phone, PDAs/handheld devices or PC Tablets?• Price

– Phones, PDAs- £100+ – PC Tablets - £500+

• Portability

• Sophistication

• Security

Page 22: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

22

Micro payments

• The big challenge – but enormous potential

• Minimal transaction costs

• Big technical problems to get integrated solution (across boundaries/services)– requires change in infrastructure(s)

• Problem of distributing share of payment

Page 23: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

23

Electronic ‘Cash’

• Many advantages for users – Limit risk (i.e. only loose cash value), anonymous, in-

control

• Technical challenges of develop an electronic cash infrastructure

• Extra risk associated with cash – not traceable

• Profit for electronic cash providers?– eg ‘cash’ via pre-pay cards – need to include more than

cash value to account for distribution costs

Page 24: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

24

Electronic ‘Cash’ offerings …AvantBalcard Carta facile Cartio Micropayments Cash Cashcard Chipknip Chipper CLIP Cybertarjeta Danmønt (Dancoin) DigiGold DuoCash e-port Earthport eTopup.com Euro 6000 Fancredits Fortress GB Geldkarte I like Q iGEN-Mastercard Internetcash iPIN Juice Pay K-Wallet (ex- Klebox) KLINK LETS Matkahuolto Maximiles

MicroMoney miniCASH

MINIpay Mint Mobipay (Movilpago) Modeus Mojo Nation Mondex Monedero 4B Moneo Netels Octopus Card PACE Paysafecard PMB Portos Proton Qdodge Quick Safetrader Smart creds SplashPlastic Street Cash Surfmiles VirtualCash Visa Buxx Visa Cash Webc@rd WWWbon Zakis

•  

Page 25: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

25

Existing structure

• Payments need to integrate into existing payments structure– Clearing companies APACS, CHAPS, BACS

• Clearing technologies and companies– Tandem Base 24– Eg Alaric (www.Alaric.com)

Page 26: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

26

Mobile payment options: Summary“M-commerce needs ubiquitous, compatible,

payment systems”• Many options

– Several trials, limited scope

• Several challenges– eg incompatibilities, some serious

• Need for standards– No universal standard

• Several players– Political element

Page 27: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

27

[Source(s) for payment information

• E-PSO database of payment systems(www.epso.jrc.es)

• But lots more …]

Page 28: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

28

Example range of mobile payment options…

• Electronic purses/wallets

• Card based (smart card and pre-pay) and software options

Page 29: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

29

Example electronic purses/wallets:(actual systems and systems which support/interface with)• ABN AMRO ewallet • Bankpass Mobile • Bankpass Web • Banxafe • CyberCash • Cybertarjeta • DigiGold • Dynacash (ex- Intercoin) • ECML • EMPS • Earthport • Ecash • Egg wallet • GiSMo • I-Pay • K-Wallet (ex- Klebox) • MEDEA • Magex

• MasterCard e-wallet • Millicent • MinutePay • Mondex • Nochex • Odysseo• Payhound • Qpass • SET (Secure Electronic Transaction) • SafeDoor • Secure Payment Application • Smart creds • W-HA • Win-commerce • Yahoo! PayDirect

• i-Minitel, mPay

Page 30: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

30

Mobile payment options…

Specific mobile issues/challenges– Micro payments

• Lots of potential + will fuel m-commerce adoption

– Use of existing e-commerce payment systems?– Limited device capabilities

• Eg PKI – needs to be cut down version

– Higher level of risk– New players, e.g. Telcos as banks

• Need for Collaboration …

Page 31: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

31

Main players/stakeholders

• Telcos• Banks• Financial services/Card companies (VISA,

MasterCard …)• Suppliers• Existing payment service providers• Customers/users• Others …Microsoft …

Page 32: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

32

Collaboration activity• Mobile Payment Forum • MeT – Mobil electronic Transaction • Mobey Forum • PKI Forum • GMCIC: Global Mobile Commerce

Interoperability Group • mSign - Mobile electronic Signature

Consortium (www.msign.org) ….

Page 33: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

33

Collaboration activity continued …

• ECBS – European Committee for Banking Standards (www.ecbs.org)– Mobile commerce expert team

• WAP Forum• Global Platform • EMV (Europay-MasterCard-Visa) • CEPS (Common Electronic Purse Specifications)

Lots of collaborative activity?

Page 34: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

34

Collaborative activity or Protecting own interests?

Page 35: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

35

Mobile Payment Forum(http://www.mobilepaymentforum.org)

[Started October 2001]“The Mobile Payment Forum is a global, cross-

industry organization dedicated to developing a framework for standardized, secure, and authenticated mobile commerce using payment card accounts.”

 • Members: American Express, MasterCard, Visa

and JCB Card (- A cross-industry group?)

Page 36: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

36

MeT – Mobil electronic Transaction

(www.mobiletransaction.org)

• Aim “to create a common technology framework for secure mobile transactions that ensure a consistent user experience, independent of device, service and network”

Members: Mainly mobile handset manufacturers (Ericsson, Motorola, Nokia, Siemens, Panasonic, Sony), plus ‘associate members’ from Financial institutions

Page 37: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

37

The PKI Forum(http://www.pkiforum.org/)

• “foster support for standards-based, interoperable public-key infrastructure (PKI) as a foundation for secure transactions in e-business applications.”

• Members? PKI industry (Verisign etc)

Page 38: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

38

Mobey Forum (www.mobeyforum.org)• Aim

• a)to encourage the use of mobile technology in financial services such as payment, remote banking and brokerage

• b) to focus on the business needs of the financial institutions and their customers to develop secure financial services in the mobile world

• c) to provide requirements to standardisation bodies and promote open, non-proprietary technology standards’

Or to develops a ‘Preferred Payment Architecture’ Members: Mainly financial Institutions (VISA International,

ABN AMRO Bank, Bank of Ireland, BBVA, Barclays Bank, Deutsche Bank, HSBC …, Mobile handset manufacturers (Ericsson, Nokia, Siemens), plus ‘associate members’ from service providers.

Page 39: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

39

CEPS (Common Electronic Purse Specifications)

(http://www.protonworld.com/press/releases/press67index.htm)

• “define requirements for all components needed by an organization to implement a globally interoperable electronic purse program, while maintaining full accountability and auditability"(CEPSCO). – but mainly based in Europe.

Page 40: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

40

Views from different stakeholders …preferred options?• Telcos• Banks• Financial services/Card companies (VISA,

MasterCard …)• Suppliers• Existing payment service providers• Customers/users• Others …Microsoft …

Page 41: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

41

Challenges for mobile electronic payment systems

• Legal

• Technical

• Cooperation

• Higher risk

• Social

• Health

• Profit

Page 42: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

42

Challenges: Legal

A minefield of legal jurisdiction.

• EU directives: – Electronic signature, Electronic money,

Distance selling, Data protection, Copyright, ….

(eg www.ccls.edu/eclip2news/whatsnewineurope)

Page 43: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

43

Challenges: Technical & Cooperation

• Roaming

• Financial agreements

• Partnerships, different technologies and interests

• No one wants the ‘Betamax’

Page 44: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

44

Challenges: Higher risk, social

• Need for different payment models– Particularly for Telcos

• Need for monitoring/risk management– Particularly for Telcos– Examples ‘Alaric’

(www.alaric.co.uk)

• Social practices change (and impact on)• New entrants – global systems?

Page 45: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

45

Challenges: Health risks?The Stewart report on mobile phones, May 2000 

• On balance mobile phones are safe.

• But lots still unknown, suggests:-       adopting a cautionary approach to use (eg

restrict children use)       need more research with a wider remit         placing of cellular network masts under local

planning rules 

Page 46: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

46

Challenges: Profit

• Payment service providers need to make a profit to be able to provide the service

• Profits are still based on credit/debit cards

• Electronic cash – little/no profit– Provided by governments?

• Micro-payments - ditto

Page 47: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

47

The future?

• Massive investment in mobile technology:-Approx 80+, 3rd Generation licenses worldwide.

Business (and governments) will want to recoup costs.

•  Mobile payment systems are a prerequisite to m-commerce

• Expect a few winners (and loosers)– But which ones?

Page 48: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

48

References

• e-pso forum – database of several payment methods and discussion papers: • www.epso.jrc.es • For “Study on the implementation of Recommendation 97/489/ECconcerning transactions carried out by

electronic payment instruments …”• http://europa.eu.int/comm/internal_market/en/finances/payment/instrument/study.htm • Electronic newsletters covering m-commerce: • http://www.internetworld.co.uk/mcomm/index.cfm • http://www.epaymentsnews.com/ • http://epso.jrc.es/newsletter/ • Independent Expert Group on Mobile Phone (IEGMP) web site containing full report into risks of mobile

phone usage http://www.iegmp.org.uk

 

Page 49: Mobile electronic payment systems: Main technologies and options Carl Adams, University of Portsmouth E-mail: Carl.Adams@port.ac.ukCarl.Adams@port.ac.uk.

m-commerce payment systems: main options

49

•  References continued• Forester Research reports see http:/www.forester.com

•  

• Nokia reports see http://www.nokia.com

•  

• EU reports and directives see http://europa.eu.int

•  

• ITU reports and details of international agreements see http://www.itu.int

•  

• UK Oftel, see http://www.oftel.gov.uk

•  

• Palm/enterprise systems and case studies, see http://www.palmgear.com,

• or http://www.palmpilot.com/enterprise/studies/study17.html

•  

• National Radiological Protection Board (NRPB) web site http://nrpb.org.uk