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CHAPTER 1

INTRODUCTION

SaaS (Software as a service) is a software delivery model where instead of

purchasing the software and implementing, users can rent the software on a monthly cost-

per-user or usage basis and can scale up or down as needed.

Software as a service (SaaS, typically pronounced 'Sass') is a model of software

deployment where an application is hosted as a service provided to customers across the

Internet. By eliminating the need to install and run the application on the customer's own

computer, SaaS alleviates the customer's burden of software maintenance, ongoing

operation, and support. Using SaaS also can reduce the up-front expense of software

purchases, through less costly, on-demand pricing.

From the software vendor's standpoint, SaaS has the attraction of providing

stronger protection of its intellectual property and establishing an ongoing revenue

stream. The SaaS software vendor may host the application on its own web server, or this

function may be handled by a third-party application service provider (ASP).

The advantages of SaaS over traditional software are substantial:

No upfront costs or risk if the application isnt right for you, then simply stop

subscribing.

Lower hardware and networking costs the internet is the network and you only

need a browser for access.

Safer and more secure data storage data is typically stored in highly secure

locations and backup is instantaneous.

Anytime, anywhere access you dont have to be in the office to see or work with

your data.

Following table gives the clear comperison between Traditional software & Saas

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Table 1.1: comperision between Traditional software & Saas

1.1 HISTORY

The concept of "software as a service" started to circulate before 1999. In December

2000, Bennett et al. noted the term as "beginning to gain acceptance in the marketplace".

While the phrase "software as a service" passed into common usage, the CamelCase

acronym "SaaS" term was coined by Bennett et al as the beginning for gaining

acceptance in the marketplace in December 2000. An article called "Str

Backgrounder: Software as a Service", published in February 2001 by the Software &

Information Industry's (SIIA) eBusiness Division, discusses this. The claim that it was

actually written in the fall of 2000 angers Bennett (according to internal Association

records).

One of the first SaaS applications was SiteEasy, a web-site-in-a-box for small

businesses, that launched in 1998 at Siteeasy.com. Developed by Atlanta-based firm

WebTransit (co-founded by Gary Troutman and Drew Wilkins), SiteEasy was sold on a

subscription-basis for a monthly fee to its first customer in the Fall of 1998.

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CHAPTER-2

TECHNOLOGY AND TRENDS

This chapter mainly focuses on the technological trends that were able to adopt

this Saas technology and are successfully implemented and gained acceptance in the

market place.

2.1 TECHNOLOGICAL TRENDS

7 Trends in Software as a Service Platforms are-

SaaS is just part of the web mega-trend

Mainstream opinion says Yes to SaaS

Software vendors stampede into SaaS

All is being virtualized

Economic factors favor SaaS

Enterprise and SMB IT embraces SaaS

SaaS platforms proliferate (PaaS)

2.1.1 SaaS is just part of the web mega-trend

Most of us have witnessed and many of us have been a part of the transformation

in the way goods and services have been digitized, virtualized, delivered and consumed.

Software, the data behind that software and the functionality that software provides is no

different - software is subject to the very same transformational forces.

The web wants to connect things, and that's interesting. But connecting andinteracting with "live" data, information and remote functionality make things more

interesting.

At the fundamental level, the web connects things. It connects people to people,

businesses to businesses, and people to businesses. Since the early 90's, the web has

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enabled the connection of so many things to so many other things at an ever accelerating

rate, and yet we crave even more connectivity. But we increasingly also want the ability

to interact with those things.

And it is the nature of these connected things that have changed since the early

internet. The early web was good at connecting to static views of information and

accessing limited and rigid functional services, very much a read-only mode. Then, as we

learned a) the ability to read more dynamic-type information - at least regularly updated,

and b) access richer remote functionality, we created whole new opportunities for

ourselves. Next, we grew our ability read and write against dynamic, near real-time data

and information and to program against remote functionality to create a new class of web

applications leveraging those capabilities - and hence a new order of business andexperiential opportunities have emerged. Some label this as "Web 2.0".

At its essence, it is the "liveness" of these real-time read-write data, information

and functional sources available as "always on" services and the increasing ease to

connect to, interact with - specifically change those resources available as li

programmable services that allows us to create new value out of those resources, opening

up brand new market opportunities for businesses and the compelling, rich "live" end-

user experiences of tomorrow.

2.1.2 Mainstream opinion says Yes to SaaS

Not surprisingly, Wall Street loves the the predictability of subscription services.

It's good for cash flow, forecasting and business planning.

The venture firms also relish the opportunities that are opening up in a software as

services-oriented economy. The ability to circumnavigate the incumbent software players

with new disruptive technologies and propositions that are significantly easier to try and

access for prospective customers compared to traditional software evaluation, along with

usage and subscription-based business models verses the old licensing model makes

investing in services-based software companies very compelling propositions from the

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venture firms' point of view. We should also see healthy M&A activity based on these

similar opportunities in the coming year.

And then there's the trend for offshore / IT business process outsourcing. These

providers will surely get in the game and make their plays through investments in and

acquisitions of SaaS vendors that align well with their current core businesses.

Corporate executives and end-users agree with :

IT is a needless hassle,

it should be as easy as electricity and

be as reliable as a utility

2.1.3 Software vendors stampede into SaaS

The Big Software Players are following the early SaaS successes CRM as a case

in point. If you've been following the CRM software market, you'll know about the noises

Oracle-Siebel, SAP and Microsoft started to make in the 2007 about what they are are

lining up for the 2008 in terms of CRM as a service. Their efforts to emulate

Salesforce.com's success delivering CRM as SaaS will be key strategic bets from the

incumbents' point of view - and loud, price and functionally competitive propositionsfrom the point of view of their existing and prospective customers.

CRM is just one of the multiple horizontal solution categories to transform from

on-premise with traditional licensing model to a service-based delivery and subscription-

based revenue model. ERP, supply chain, e-commerce, HR and many more...the

horizontal solution list goes on. And then there are the vertical solution players...

2.1.4 All is being virtualized

Virtualization is a technology trend;

Virtualization enables hardware as a service. The demand for virtual machines

met by hypervisor software (VMWare, Xen, Hyper-V) and the success ofAmazon's

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Elastic Compute Cloud (EC2) in the last couple of years point to a continuation of further

virtualization of applications and hardware. Virtualization is accelerating the move from

traditional on-premise software to services.

Virtualization is a business trend;

We continue to become a mobile workforce. The younger entrants into the

workforce in service-oriented economies expect and want to be always connected. It's

very hard work, if not impossible to get your traditional on-premise applications and

centralized servers sitting behind a firewall to serve today's mobile workers. SaaS and

managed services meet the needs square on.

2.1.5 Economic factors favor SaaS

On-premise software requires upfront capital investments

To lower costs, many companies hold back on their capital investments to

mitigate their risks, especially in recessions

Adopting on-demand services on a pay-as-you-go basis will be a perfect sourcing

strategy for businesses seeking greater cost-controls and flexibility the utility

model

2.1.6 Enterprise and SMB embraces SaaS

When it comes to IT, who doesn't like

Low-maintenance?

Low cost?

Low-resource profile?

IT and business folk like these things, and externally delivered SaaS applications

deliver these benefits.

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2.1.7 SaaS platforms proliferate (PaaS)

The more mainstream SaaS becomes the more the large vendors will be forced to

offer effective platforms for ISVs, enterprises and SMBs.

If the move by the software vendors from traditional on-premise software to a

services model is to be successful, they will need to provide programmable interfaces -

not just end-user interfaces - to their services for their customers. Customers need and

want the ability to access, intergrate and create new value out of live, programmable data,

information and functionality living in the cloud. And in turn these same customers will

want their custom-developed composite applications and integrated data available as

programmable services - yet more APIs.

Customers want to unleash new value of previously isolated data silos and

functionality through the development of their own applications programmed against

those resources. And in turn these same customers will want their own custom-developed

composite applications and newly integrated data available as end-user interfaces and as

programmable services - yet more APIs. These customer needs will drive the software

market to provide platforms to provide businesses and developers with with end-to-end:

programmable services and data integration

application development, testing and collaboration tools

deployment and scalable delivery

2.2 CURRENT TRENDS

One of the downsides of traditional software is the risk of buying an application

that doesnt fit your needs or that your needs will change. Either way, you are stuck with

what you bought, and the only solution is to buy new software. SaaS takes away the risk.

If you dont like the application, simply stop your subscription. Another problem with

traditional software is the difficulty of version control. Updates can be costly, and re-

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installation can be problematic. With a SaaS application, you always have the latest

version every time you sign on

Software as a Service or on demand applications refer to web-based software

applications where the underlying hardware and software components are shared by all

users of the application. The hardware that is used to run the software is not located at the

customer's premises but in high-tech data centers and is managed by the provider of the

service. Users gain access to the software interface through an internet browser. No

software has to be installed on the user's computer nor will they need to worry about

upgrades of the software or backups of the data that is saved.

SaaS is based on the principle of sharing: the sharing of resources, computerhardware, knowledge, and most importantly the sharing of cost. Typically, you pay for

the software based upon usage, which usually translates into a monthly subscription.

Basically, you rent the software, instead of buying.

One of the greatest advantages of a Saas application is the safety and security of

remote storage. Saas providers like Planet DDS have their servers in high security

facilities, which are designed to house the servers of companies like Merrill Lynch and

Bank of America. They are impenetrable without appropriate security clearance, and they

can withstand the greatest of natural disasters. Additionally, a real time back-up of all

data is co-located in a second facility. This type of security far exceeds that of a typical

dental office.

Besides lower costs and greater sophistication, the greatest value of Saas in

dentistry is undoubtedly the anytime, anywhere access to data. Dentists who own or work

in multiple locations are already taking advantage of this tremendous f

Appointments can be made at anytime for any location. Central business functions, like

billing and insurance management, can be done from anywhere or easily outsourced.

Reports can evaluate practice performance by any and all locations.

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Also, since you only need a browser and an internet connection to access the

application, it can be deployed very rapidly and can be scaled to any number of offices.

And, if all that isnt enough, the ultimate reason for multi-locations to use SaaS is that it

is a fraction of the cost of other solutions. The internet is the network, and the servers are

owned and operated by the SaaS provider. There is no need for expensive hardware,

costly networking, and outrageous communications costs.

Since Saas applications are online, they can be easily accessed by anyone to

whom you give security clearance. For instance, a bookkeeper or accountant need not

come to your office to gather production and collection information.

More importantly, Saas allows direct patient communications. Patients can register

online; they can view statements online; they can pay online. Appointment reminders canbe automatically sent from information on the appointment scheduler. And, these ideas

are only the tip of the iceberg.

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CHAPTER-3

IMPLEMENTATION

SaaS architectures can generally be classified as being at one of four "maturity

levels", whose key attributes are configurability, multi-tenant efficiency, and scalability.

Each level is distinguished from the previous one by the addition of one of those three

attributes:

Level 1 - Ad-Hoc/Custom: At the first level of maturity, each customer has its

own customized version of the hosted application and runs its own instance of the

application on the host's servers. Migrating a traditional non-networked orclient-serverapplication to this level of SaaS typically requires the least development

effort and reduces operating costs by consolidating server hardware

administration.

Level 2 - Configurable: The second maturity-level provides greater program

flexibility through configurable metadata, so that many customers can use

separate instances of the same application code. This allows the vendor to meet

the different needs of each customer through detailed configuration options, while

simplifying maintenance and updating of a common code base.

Level 3 - Configurable, Multi-Tenant-Efficient: The third maturity level adds

multi-tenancy to the second level, so that a single program instance serves all

customers. This approach enables more efficient use of server resources without

any apparent difference to the end user, but ultimately comes up against limits in

scalability.

Level 4 - Scalable, Configurable, Multi-Tenant-Efficient: The fourth and final

SaaS maturity level adds scalability through a multitier architecture supporting a

load-balanced farm of identical application instances, running on a variable

number of servers. The provider can increase or decrease the system's capacity to

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match demand by adding or removing servers, without the need for any further

alteration of applications software architecture.

SaaS architectures may also use virtualization, either in addition to multi-tenancy, or in

place of it. One of the principal benefits of virtualization is that it can increase the

system's capacity without additional programming. On the other hand, a considerable

amount of programming may be required to construct a more efficient, multi-tenant

application. Combining multi-tenancy and virtualization provides still greater flexibility

to tune the system for optimal performance. In addition to full operating system-level

virtualization, other virtualization techniques applied to SaaS includeapplication

virtualization and virtual appliances.

The development of SaaS applications may use various types ofsoftware components

and frameworks. These tools can reduce the time-to-market and the cost of converting a

traditional on-premise software product or building and deploying a new SaaS solution.

Examples include components for subscription management, grid computing software,

web application frameworks, and complete SaaS platform products.

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CHAPTER-4

ARCHITECTURAL DESIGN

Software as a service (SaaS, typically pronounced 'Sass') is a model of software

deployment where an application is hosted as a service provided to customers across the

Internet.

By eliminating the need to install and run the application on the customer's own

computer, SaaS alleviates the customer's burden of software maintenance, ongoing operation,

and support. Using SaaS also can reduce the up-front expense of software purchases, through

less costly, on-demand pricing

4.1 DELIVERY MODEL

Fig: 4.1 Delivery model of saas

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As shown in fig: 4.1 saas can be :

On Demand Single Tenant

Configured for each customer

Each Customer has a Single Code Set and instance

Upgrades and version control by customer

On Demand Multi Tenant

Standard configurations

for a vertical market

Single Instance

Multiple customers against

Single Industry Code Set

Offering Examples

Supply Visualization

Vertical Editions

Desktop Shipping

4.2 UTILITY

4.2.1 Rent Instead of Buy:-

One of the downsides of traditional software is the risk of buying an application

that doesnt fit your needs or that your needs will change. Either way, you are stuck with

what you bought, and the only solution is to buy new software. SaaS takes away the risk.

If you dont like the application, simply stop your subscription. Another problem with

traditional software is the difficulty of version control. Updates can be costly, and re-

installation can be problematic. With a SaaS application, you always have the latestversion every time you sign on.

4.2.2 Safety and Security

One of the greatest advantages of a Saas application is the safety and security of

remote storage. Saas providers like Planet DDS have their servers in high security

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facilities, which are designed to house the servers of companies like Merrill Lynch and

Bank of America. They are impenetrable without appropriate security clearance, and they

can withstand the greatest of natural disasters. Additionally, a real time back-up of all

data is co-located in a second facility. This type of security far exceeds that of a typical

dental office.

4.2.3 SaaS is Ideal for Multi-Locations

Besides lower costs and greater sophistication, the greatest value of Saas in

dentistry is undoubtedly the anytime, anywhere access to data. Dentists who own or work

in multiple locations are already taking advantage of this tremendous f

Appointments can be made at anytime for any location. Central business functions, like

billing and insurance management, can be done from anywhere or easily outsourced.

Reports can evaluate practice performance by any and all locations.

Also, since you only need a browser and an internet connection to access the application,

it can be deployed very rapidly and can be scaled to any number of offices. And, if all

that isnt enough, the ultimate reason for multi-locations to use SaaS is that it is a fraction

of the cost of other solutions. The internet is the network, and the servers are owned and

operated by the SaaS provider. There is no need for expensive hardware, costly

networking, and outrageous communications costs.

4.2.4 Connectivity

Since Saas applications are online, they can be easily accessed by anyone to

whom you give security clearance. For instance, a bookkeeper or accountant need not

come to your office to gather production and collection information.

More importantly, Saas allows direct patient communications. Patients can register

online; they can view statements online; they can pay online. Appointment reminders can

be automatically sent from information on the appointment scheduler. And, these ideas

are only the tip of the iceberg.

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4.3 INDUSTRIAL RELEVANCE

The Big Software Players are following the early SaaS successes;

CRM as a case in point. If you've been following the CRM software market,

you'll know about the noises Oracle-Siebel, SAP and Microsoft started to make in the

2007 about what they are are lining up for the 2008 in terms of CRM as a service. Their

efforts to emulate Salesforce.com's success delivering CRM as SaaS will be key strategic

bets from the incumbents' point of view - and loud, price and functionally competitive

propositions from the point of view of their existing and prospective customers.

CRM is just one of the multiple horizontal solution categories to transform from

on-premise with traditional licensing model to a service-based delivery and subscription-

based revenue model. ERP, supply chain, e-commerce, HR and many more...the

horizontal solution list goes on. And then there are the vertical solution players...

Other saas vendors are :

Yahoo, Google, Microsoft, Sun MicrosystemsFig: 4.2 shows an snap of OfficeLive from Microsoft which is an example of saas

application

Fig: 4.2 OfficeLive from microsoft

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CHAPTER-5

APPLICATION DOMAIN

Recent research using professional programmers suggests that knowledge of theapplication domain plays a major role in the cognitive processes they use to understand

computer programs. In general, programmers use a more top-down comprehension

process when working in familiar application domains, and a more bottom-up process in

unfamiliar domains. The present study builds on that research by further characterizing

comprehension processes.

5.1 APPLICATION AREAS

Enterprise Software Application:

Perform business functions:- Pricing,Billing,Registration

Organize internal and external information:-About the enterprise & its competitors

Share data among internal and external users:-Members of organization & its customers

The most standard type of software applicable to Saas model

Example: Saleforce.com CRM application

Single-User software application:

Organize personal information:-About the user of single instance of the application.

Run on users own local computer:-Only personal computer required.

Serve only one user at a time:-Instance of particular package/software used by one user.

Example: Microsoft office suite

Infrastructure software

Serve as the foundation for most other enterprise software application

Installation locally is required

Form the basis to run other application

Example: Window XP, Oracle database

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CHAPTER-6

RESEARCH AND DEVELOPMENT

Traditional plan-driven development approaches do not work, Agility is key for

Rapid releases and upgrades

Research and development here focus on

Absorbing rapid and immediate feedback

Leveraging usage data to guide development

Meeting customer needs

Ever tighter deadlines

Early and frequent testingR&D must deal with the entire SaaS platform

Platform and tools for hosting and serving the software

Software itself

Billing

Customer service

Service aggregation

6.1 SCOPE

Characteristics of SaaS include:

network-based access to, and management of, commercially availabl

software

activities managed from central locations rather than at each customer's site,

enabling customers to access applications remotely via the Web

application delivery typically closer to a one-to-many model (single instance,

multi-tenant architecture) than to a one-to-one model, including architecture,

pricing, partnering, and management characteristics

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centralized feature updating, which obviates the need for end-users

download patches and upgrades.

frequent integration into a larger network of communicating software - either

as part of a mashup or as a plugin to a platform as a service. (Service oriented

architecture is naturally more complex than traditional models of software

deployment.)

Providers of SaaS generally price applications on a per-user basis, sometimes with a

relatively small minimum number of users and often with additional fees for extra

bandwidth and storage. SaaS revenue streams to the vendor are therefore lower initially

than traditional software license fees, but are also recurring, and therefore viewed as

more predictable, much like maintenance fees for licensed software.

Additional benefits:

More feature requests from users since there is frequently no marginal cost for

requesting new features;

Faster releases of new features since the entire community of users benefits

from new functionality; and

The embodiment of recognized best practices since the community of users

drives the software publisher to support best practice.

6.2 STATISTICAL SUPPORT

Software as a Service (SaaS) - Future is Friendly!

During this economic turbulence when businesses are looking over their operating

strategies and planning ahead to cope with unpredictable future, SaaS vendors and

customers can see some light at the end of the tunnel. According to Gartner, Software as

a Service (SaaS) revenue is expected to reach 14.8 billion in 2012, more than double of

what it was in 2008 ($6.4 billion). The research however only account for enterprise wide

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application software like Enterprise Resource Planning (ERP), Supply Ch

Management (SCM), Customer Relationship Management (CRM), Digital Content

Creation (DCC), Content, Communication and Collaboration (CCC) etc.

The good news is that there is good news from both sides: SaaS Providers and

SaaS Adopters:

SaaS Providers: Salesforce (poster child for SaaS) reported 34% increase in fourth

quarter earnings compared to the same period last year. TreeHouse Interactive, an

on demand (SaaS based) Partner Relationship Management (PRM) and other

technology products vendor closed 2008 with a 35 percent increase in annual

revenue and a 30 percent expanded customer base. Proofpoint, Inc. , the leading

provider of SaaS based unified email security, email archiving and data loss

prevention solutions reported highest revenues ever for the first quarter of 2009 in

the companys history and 23rd consecutive quarter of record-breaking revenue.

SaaS Adopters: NetSuite customers achieved 30% increase in revenues, 36%

increase in web transactions and 99.99% site uptime during past holiday season.

Salesforce CRM customers are reported to have 34% revenue growth, 17% profit

margin improvement, and 25% increase in overall customer satisfacti

OrderMotion customers saw a cumulative 13% increase in merchant revenue

during 2008 holiday season with one customer Stroll.

Salesforce.com is the most successful vendor of saas

Salesforce.com's annual revenue(million USD)

5.422.4

51

96

176

2000 2001 2002 2003 2004

Source: Salesforce.com 2004 annual report

Fig: 6.1 salesforce.com annual revenue

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Fig: 6.1 Shows the revenue report of salesforce.com for year 2004 according to

this report saas has very good scope.

Fig: 6.2 Avg. increase in CRM budget

Fig: 6.3 Cost estimation for CRM software

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Making SaaS Savvy Investments

According to fig: 6.4 the Promise of SaaS

23% projected annual growth

$21.4 billion industries by 2011

Representing 14% of addressable market

Fig: 6.4 Annual growth in revenue

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CHAPTER-7

CONCLUSION

Alternative pricing models

One reason for developing SaaS applications is the opportunity to implement

alternative pricing models that focus on establishing and maintaining recurring revenue

streams. Most SaaS vendors charge some kind of monthly "hosting" or "subscription"

fee. Opportunities also exist to charge per transaction, event, or other unit of value to the

customer. These alternative pricing models come about because customers actually

"lease" the software from the vendors and the vendors have the ability to view all

transactional activity within the system.

User satisfaction

Gartner's 2008 survey of 333 enterprises in the US and UK found a low level of

approval from customers, describing overall satisfaction levels as "lukewarm

Respondents who had decided against SaaS cited high cost of service, difficulty with

integration, and technical requirements.

7.1 FUTURE OF TECHNOLOGY

Software-as-a-service (SaaS) has evolved beyond its early roots in customer

relationship management (CRM) and human capital management (HCM) applications

though both applications continue to demonstrate high potential for growth in the

enterprise and is now gaining traction in areas such as Web con

collaboration, and IT service management (ITSM). These categories will experience

significant SaaS success over the next decade, according to research published by

Forrester Research, Inc.

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http://cts.businesswire.com/ct/CT?id=smartlink&url=http%3A%2F%2Fwww.forrester.com%2F&esheet=5916544&lan=en_US&anchor=Forrester+Research%2C+Inc.&index=1http://cts.businesswire.com/ct/CT?id=smartlink&url=http%3A%2F%2Fwww.forrester.com%2F&esheet=5916544&lan=en_US&anchor=Forrester+Research%2C+Inc.&index=1

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Forrester predicts that the following technologies are poised to experience significant

success in the enterprise market:

Collaboration. Although its long-term future is unproven, Forrester's market data

has shown SaaS collaboration to be one of the hotter areas of SaaS adoption, with

the potential to significantly impact the collaboration market.

Web conferencing. Already heavily SaaS-based, Web conferencing technologies

continue to move in that direction. It is an ideal candidate for SaaS, and many

companies are comfortable using this technology as SaaS.

CRM. One of the earliest categories where SaaS adoption took off, this category is

already mature; however, some companies with established on-premise CRMstrategies will be slow to or in many cases will never switch over.

HCM. SaaS deployment of HCM/HR solutions has been popular, however many of

them have been niche solutions by small vendors. Consolidation in this space has

started to create broader suite offerings, increasing the potential growth of these

technologies.

ITSM. These solutions in the SaaS model are growing in popularity, but many of

the larger vendors have yet to enter this space. As established vendors continue to

enter the market, SaaS has the potential to transform the world of IT applications.

Online backup. Particularly for small and medium-size businesses (SMBs), PCs,

and remote location, online backup has already attracted strong interest. One area of

concern is recovering large quantities of data in a short time frame.

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APPENDIX

ABBREVATIONS

SMB- Small and medium-size businesses

CRM- Customer relationship management

HCM- Human capital management

ITSM- IT service management

ERP- Enterprise Resource Planning

PRM- Partner Relationship Management

SCM- Supply Chain Management

DCC- Digital Content CreationCCC- Communication and Collaboration

R&D- Research and development

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BIBILOGRAPHY

WEB-SITES:

"Multi-tenancy and Virtualization".

http://blogs.msdn.com/fred_chong/archive/2006/10/23/multi-tenancy-and-

virtualization.aspx.

Gartner Survey Shows Many Users are Underwhelmed by Their Experiences of

SaaS, Gartner.com, 2009-07-08

http://www.SoftwareAsAService.co.nz

Trends in Software as a Service Platforms - Alex Barnett blog.mht

BOOKS:

Some Future Trends and Implications for Systems and Software Engineering

Processes

By Barry Boehm

Center for Software Engineering, University of Southern

California, Los

Panel: Collaborative Software Engineering New and Emerging Trends

By David Redmiles, Daniela Damian

Department of Informatics University of California, Irvine

25

http://blogs.msdn.com/fred_chong/archive/2006/10/23/multi-tenancy-and-virtualization.aspxhttp://blogs.msdn.com/fred_chong/archive/2006/10/23/multi-tenancy-and-virtualization.aspxhttp://blogs.msdn.com/fred_chong/archive/2006/10/23/multi-tenancy-and-virtualization.aspxhttp://www.gartner.com/it/page.jsp?id=1062512http://www.gartner.com/it/page.jsp?id=1062512http://www.softwareasaservice.co.nz/http://blogs.msdn.com/fred_chong/archive/2006/10/23/multi-tenancy-and-virtualization.aspxhttp://blogs.msdn.com/fred_chong/archive/2006/10/23/multi-tenancy-and-virtualization.aspxhttp://blogs.msdn.com/fred_chong/archive/2006/10/23/multi-tenancy-and-virtualization.aspxhttp://www.gartner.com/it/page.jsp?id=1062512http://www.gartner.com/it/page.jsp?id=1062512http://www.softwareasaservice.co.nz/