Post on 25-Feb-2016
description
sgazziano@johncabot.edu 1
John Cabot University
Le nuove tecnologie come vantaggio competitivo della piccola impresa
Stefano Gazziano
INPDAP: CORSO DI PERFEZIONAMENTO
28 Maggio – 2 Agosto 2012
sgazziano@johncabot.edu 2
Stefano Gazzianoyour instructor
• First programming with punching cards, 1978, Univac 1100, Physics, La Sapienza Univ, Rome Italy
• First personal web page June 1994, ICSI, UC Berkeley, Calif. USA (wayback machine listed it in 1996, there was no wayback machine in 1994 )
• JCU Faculty since 1999• Univ. Rome, Univ. Glasgow UK, Georgia Tech Atlanta
USA, Univ California Berkeley 1994, ENI, OECD, EC, other private industry, ENEA, consultant in web reputation management.
sgazziano@johncabot.edu 3
Il Programma – 1 • Cloud computing per i sistemi informativi aziendali ed il lavoro in
gruppo– Cos’è il “cloud” un esempio immediato in classe– Offerta attuale e tendenze del “Cloud”– Risparmi ed efficienza– Sicurezza e tutela dei dati aziendali
• Presenza in rete: sito Web– Una delle componenti– Progettazione– Sviluppo e usabilità del sito– Piattaforme online– Strumenti per la gestione dei contenuti – Aggiornamento del sito da parte di personale non ICT– Ottimizzazione e posizionamento sui motori di ricerca
sgazziano@johncabot.edu 4
Il Programma – 2• Piattaforme di commercio elettronico “pay-per-use”
– Integrazione dei servizi di vendita con la piattaforma online– Servizio all’utenza in rete (online CRM) – Post vendita e assistenza clienti
• Banner pubblicitari– Servizi ”pay per click” “pay per impression”, Google
Adwords e Adsense• Marketing digitale (newsletter e DEM, canali e-mail, sms,
mms, fax e sondaggi, con analisi statistiche, comparative e di performance; campagne di acquisizione utenti, concorsi e giochi online per incrementare gli iscritti al database, programmi di incentivazione e fidelizzazione.
sgazziano@johncabot.edu 5
Il Programma - 3
– Promozione aziendale su Web• Regole ed esperienze• Blog, social network, comunità di utenti• Quale piattaforma per quale paese ?
– (Orkut, Facebook, Badoo, QQ, Twitter, Vkontakte, Linkedin, …. … …)
sgazziano@johncabot.edu 6
Il Programma – 1let’s start
• Cloud computing per i sistemi informativi aziendali ed il lavoro in gruppo– Offerta attuale e tendenze del “Cloud”– Risparmi ed efficienza– Sicurezza e tutela dei dati aziendali– Cos’è il “cloud” un esempio immediato in
classe
sgazziano@johncabot.edu 7
Cloud computing: lavorare direttamente su Internet
• Sometimes called simply “the Net,” the Internet is a worldwide system of computer networks—a network of networks hence Internet, in which users at any one computer can get information from any other computer
• The Internet uses a portion of the total resources of the currently existing public telecommunication networks. Technically, what distinguishes the Internet is its use of a set of protocols called TCP/IP (Transmission Control Protocol/Internet Protocol).
sgazziano@johncabot.edu 8
An Intranet• An intranet is the use of Web technologies to create
a private network, usually within one enterprise.• It is typically a complete LAN, or several intra-
connected LANs• Intranets are used for:
– work-group activities – the distributed sharing of projects within the enterprise– Controlled access to company financial documents– use of knowledge management, research materials,
online training, and other information that requires distribution within the enterprise.
sgazziano@johncabot.edu 9
Intranet v/s Internet
sgazziano@johncabot.edu 10
Extranet• Connect several intranets via the Internet, by adding a
security mechanism and some additional functionalities• They form a larger virtual network that allows remote
users (such as business partners or mobile employees) to securely connect over the Internet to the enterprise’s main intranet.
• Extranets are also employed by two or more enterprises (suppliers & buyers) to share information in a controlled fashion, and therefore they play a major role in the development of business-to-business electronic commerce and Supply Chain systems.
sgazziano@johncabot.edu 11
Intranet v/s Internet, 2
• X disk
• FTP area
• web sites (e.g. Facebook)
JCU facilities
Rest of the World(your laptop is here, at home)
The “FIREWALL”connects
intranet to internet
PC Lab is here
sgazziano@johncabot.edu 12
Local v/s Network
• Local = on your machine(e.g.C:/programs)• Local Network = « Intranet »• X: shared disk (user permissions, permanent)• O: temporary area (cleared periodically)• Accessible only from within JCU premises• Network, a.k.a. « cloud »• Google docs• MS Office 2010 (near future)
sgazziano@johncabot.edu 13
The World Wide Web
• Runs on the Internet, Intranet, Extranet
• Uses the Hypertext Protocol (HTTP)
• We just call it the Internet, but it is a subset of it
sgazziano@johncabot.edu 14
Files on the Web
sgazziano@johncabot.edu 15
sgazziano@johncabot.edu 16
Web server and web browser are different
sgazziano@johncabot.edu 17
Real systems are a bit more complex, yes...
sgazziano@johncabot.edu 18
Cloud computing
sgazziano@johncabot.edu 19
Cloud Computing : software as a service
sgazziano@johncabot.edu 20
Cloud computing types
John Cabot University
stefano.gazziano@enea.it
Cloud computing
From system to services
The « Cloud » is a group of serves, software, storage, processes, applications, data bases, data …
Somewhere on the Net someone knows where they all are
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Does that rememeber you of something ?Perhaps the « mainframes of the ’70s ??
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Correct: The mainframe is distributed over the Net
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Is a major concept about using storage and processing power from computers and servers distributed overall the world, and linked by the Internet
a.k.a « The Grid »
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Users (usually companies) are no more owners of their servers, but rather access a number of services available online with no need to maintain and manage the underlying infrastructure
Applications and data are no more stored on local computers but « in the cloud », on a number of servers in different locations and interconnected by a high bandwiodht network, crucial to the efficiency of the system.
Access to services is usually made via a web application, a browser.
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Cloud computing is a concept close to « power grid »
Computing power and storage is offered as « pay per use » by specialized companiesAs a matter of fact, companies do not need their own computers any more, but rely on a service company, which guarantees computing power and storage « on demand » .
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Depending on the apoproacapproach, three « cloud computing » types may be listed: Internal cloud external private clouds public clouds
This is what is known as « elastic computing capacity ».
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
There are already many IT systems « in the cloud » and many APIs to use
API from Amazon, Amazon EC2 is one of the most popular.
Many tools are compatible with Amazon EC2 APIs. Eucalyptus, Open system enabling the creation of on-premise Infrastructure as a Service clouds, with no requirements for retooling the organization's existing IT infrastructure or for introducing any specialized hardware.système libre utilisant de la virtualisation Xen et le langage Java. egEclipse is a framework that allows users and developers to access arbitrary computing infrastructures (video). DotRiver. fully Open Source integrated desktop virtualization product in the market today. Offers total control of your workstations, Whatever their type, their configuration, their use, organization or technical architecture, “whatever your needs and for all of your software”.
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Advantages
Optimizes costs compared to traditional systems, allows the development of shared applications with no need of dedicated machines « in-house ».
Actually, costs depend on the duration of the service used : no investments (human resources or machines) nécessite aucun investissement préalable (homme ou machine). The elasticity of the cloud also allows for evolutive services, which means load increase can be supported.
As an example, Salesforce.com, (Wikipedia) a pioneer in cloud computing now has a customer base of more than 100,000 companies, serving millions of employees, with few thousands servers (1000 on March 2009).
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Hazards
Secure access to applications between client and remote servers. General security of company network.
Data on a cloud service are generally safer than on a local storage. It is anyway possible to store sensible data within the company protected areas, on an Intranet or Extranet.
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Technology : The virtual machine
Virtualization means to use a single computer like many computers at the same time.
Software emulates Hardware = Total flexibility
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Case study : Microsoft Azure
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Case study : Amazon Elastic Computing
John Cabot University
Mars 25-26 Tunis stefano.gazziano@enea.it
Cloud computing
Cas d’etude : ENEA Grid
sgazziano@johncabot.edu 38
Google docs
sgazziano@johncabot.edu 39
Google docs: let’s try it
Google Docs is a free, Web-based word processor, spreadsheet, presentation,form, and data storage service offered by Google. It allows users to create and edit documents online while collaborating in real-time with other users.
sgazziano@johncabot.edu 40
Google docs: a simple cloud computing
• Use a gmail account (preferred, register now if you do not have one)
• Send me a mail to sgazziano@johncabot.edu
• Wait for the invitation to access the file
• Follow my instructions in class
sgazziano@johncabot.edu 41
Il Programma – 1b
Presenza in rete: sito Web
– Una delle componenti– Progettazione– Sviluppo e usabilità del sito– Piattaforme online (Wordpress)– Strumenti per la gestione dei contenuti (CMS)– Aggiornamento del sito da parte di personale non ICT– Ottimizzazione e posizionamento sui motori di ricerca
sgazziano@johncabot.edu 43
Il Programma – 2• Piattaforme di commercio elettronico “pay-per-use”
– Integrazione dei servizi di vendita con la piattaforma online– Servizio all’utenza in rete (online CRM) – Post vendita e assistenza clienti
• Banner pubblicitari– Servizi ”pay per click” “pay per impression”, Google
Adwords e Adsense• Marketing digitale (newsletter e DEM, canali e-mail, sms,
mms, fax e sondaggi, con analisi statistiche, comparative e di performance; campagne di acquisizione utenti, concorsi e giochi online per incrementare gli iscritti al database, programmi di incentivazione e fidelizzazione.
sgazziano@johncabot.edu 44
Il Programma - 3
– Promozione aziendale su Web• Regole ed esperienze• Blog, social network, comunità di utenti• Quale piattaforma per quale paese ?
– (Orkut, Facebook, Badoo, QQ, Twitter, Vkontakte, Linkedin, …. … …)