LISA Virtualize offers a Virtual Service Environment (VSE) that can capture and model any service, such as a web service, and represent it as a Virtual Service running within LISA. This allows development and testing teams to design and test services in parallel without dependencies on live systems. The VSE consists of service simulation, behavioral modeling, a performance environment, and virtual service management. It provides major benefits over current constraints like limited access to critical systems, dependency among teams, inability to configure environments, and high costs of third party services. LISA Virtualize eliminates reliance on deployed services through its virtualization capabilities.

1. iTKO LISA™ Virtualize
Eliminate the Costs and Limitations of Constrained Services for Quality and Agility
LISA Virtualize offers unmatched value throughout the IT lifecycle, by capturing and modeling a Virtual
Services Environment (VSE) within LISA, which acts as a robust behavioral simulation of a service and its
underlying implementation layers. With VSE, multiple teams can design and test services in parallel, without
the burden of dependency on constrained live service implementations and systems, or maintaining costly
replicated test environments.
LISA Virtualize consists of:
Service Simulation: Rapidly captures and simulates Virtual Services,
either from a WSDL or a live implementation of web services or ESB-
based services, and their underlying data layers and systems. LISA’s
Virtual Services can be called or interacted with just like any live service
for development and testing purposes throughout the lifecycle.
Behavioral Modeling: Greatly simplifies the process of modeling
appropriate data and defining robust response and system interaction
behaviors into Virtual Services with LISA’s point-and-click declarative
design interface.
Performance Environment: Provides a load-ready target environment
with the ability to design any capacity and performance traits. LISA
Virtualize can responsively handle thousands of transactions per second.
Virtual Service Management: A dashboard for managing and
scheduling when and how LISA Virtual Services are run.
The Challenges: Constraints on IT Value & Productivity
Today’s service-based software approaches deliver value by allowing IT to decouple technologies to produce
smaller units of functionality in quickly achieved increments, which are reused and tied together flexibly by
smaller “Agile” teams to meet business requirements. However, companies embarking on SOA quickly realize
that this approach also has serious constraints of interdependency that can limit the agility we expected, while
increasing costs.
Limited Access to Critical Systems:
Development and Testing teams have
severe time constraints or no access to
live business systems to work with in their
own software lifecycle
Dependency Among Teams: Agility is
limited when teams are waiting on
incomplete or unavailable services to
deliver their own components with quality
Inability to Configure Environments:
Systems are either too heavyweight
(mainframes) or too distributed (SOA) to
replicate via Hardware Virtualization, and
maintaining all needed software could accrue millions of dollars in maintenance and configuration cost
High cost of 3rd party Services: Reliance on Cloud or other shared services creates high per-use
fees in many instances
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2. Data Volatility & Inconsistency: Effort required to model a realistic enough set of data scenarios can
eat up as much as 30% of the software timeline
The net effect of these challenges? Teams simply give up on build and test automation – and only
“acceptance test” against the live applications on the rare occasions when they are available. Or they resort to
the incredibly costly and time-consuming process of provisioning and maintaining their own complete staging
environment – including a huge data model, and licensed copies of all the services and applications needed to
validate the SOA application in absence of the live implementation.
The Solution: LISA Virtualize Provides Service Virtualization
LISA Virtualize provides a Virtual Service Environment (VSE) can capture, then model the functionality of any
Service within SOA applications, whether that is a Web Service (WSDL), a web application, an integration
layer such as an ESB, or an implementation layer such as an EJB or database, and represent that Service as
a Virtual Service running within LISA, with a high level of input and output data and performance capabilities
that simulate real-world behaviors.
How LISA Virtualize Works: The Virtual Service Environment (VSE).
Building your own functionality correctly can be hard to accomplish when live Service assets are not available.
In runtime, your access to live production systems may be limited or forbidden. But you still need to test how
your systems will interact with those Services as you build them. LISA Virtualize models and houses your
dependencies in a Virtual Service Environment that is available to your team 24/7 at a fraction of the cost of
replicating or paying for access to live systems.
Features of LISA Virtualize
Service Virtualization: LISA replaces live Services at different levels of detail, depending on needs:
Mock and Fake services: LISA creates a web service server, and LISA then validates inbound SOAP
requests, responding either with dummy data, or a set of specific SOAP responses from a data source
(JDBC or .XLS)
LISA Virtual Services: LISA dynamically invokes and gathers responses from a Service, capturing a
robust behavioral model of the service’s behavior, including the implementation and data layers
underneath it, and creates a Virtual Service asset internal to LISA that allows relevant testing to
continue in absence of the implementation.
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3. Support for Virtual Test Beds
System replay: Proxy-level recording of Web Services, and replay of server SOAP responses.
Remote Service Suites create virtual test environments to simulate the effects of testing against 3rd
party services that are deployed outside the local implementation. Remote Service suites provide
virtualization of the supporting infrastructure, and provide realistic responses back to the developer or
tester.
Automated virtual test environment staging at build time and change time handles setup/teardown,
data configuration and other time-consuming (and budget-consuming) efforts.
Performance and Load Test Lab Target that makes existing Performance and Load testing lab tools
far more productive, by providing a readily available test target that can be adjusted to the
performance and scale characteristics desired by the testing team.
Virtual Endpoint Testing & Lookup. VSE allows the tester to build web service test cases from UDDI
(Type 2 and 3) registries such as CentraSite or Systinet. At test case run time, rather than rely on a hard-
coded URL, LISA pulls the latest WSDL (t-model), using the Registry to dynamically obtain the most
current or relevant version of the service endpoint.
Benefits of LISA VSE
We propose the concept of Virtualized Services as an enabler for shared collaboration and quality across
business teams and partners.
Eliminates reliance on deployed services. Virtual Service Environment allows companies to break their
dependencies on testing and validating against live services and implementation layers. Virtualization is no
longer simply a discipline regarding the replication of hardware. Huge cost and efficiency savings are
available through the virtualization of software components across groups collaborating on SOA.
Provides concurrent team and partner development and testing. Parallel development and “anytime,
anywhere” testing availability against intelligent Virtual Services in LISA unconstrains the team from
access limitations, meaning SOA projects get done faster, at lower cost, with better test coverage.
Huge cost savings over replicating, licensing and supporting complete test environments and systems –
as much as 90% less than the per-team cost of maintaining a complete enterprise IT instance.
Easier test data management thanks to LISA’s ability to dynamically capture very relevant, current data
sets from modeled services and underlying databases and systems of record.
Keeps dependent build and test instances more current. Capture and creation of a LISA Virtual
Service is a fast, automated process in LISA, making it much easier to refresh than a managed testing
environment with many moving parts to maintain.
The Value of Virtualizing Service Behaviors
Business professionals are already familiar with the concepts of Server Virtualization and Desktop
Virtualization. These technologies created immediate value by eliminating the need for excess servers in the
data center, and automating the configuration of new Virtual Machines of desktop workstations with pre-
installed operating systems and software.
Service Virtualization of behaviors is quite simply, the counterpart to desktop and hardware virtualization for
the extended business. LISA virtualizes the distributed and shared components that may not be available
throughout the lifecycle of development and testing activities. Teams have unconstrained, 24/7 availability of
the environments they need, without having to conduct a huge software and data configuration activity.
Productivity is drastically increased, while the cost of replicating and managing each test instance is reduced
by 90% or more. The more complex your environment is, the more value can be achieved.
If your company is concerned with improving execution and quality for customers, at lower cost, and you are
challenged by supporting multiple teams within the constraints of today’s complex, distributed software,
contact iTKO today about LISA Virtualize and realize immediate value.
Contact iTKO
iTKO, Inc. | 1505 LBJ Freeway, Suite 250 | Dallas, TX 75234
877-BUY-ITKO (289-4856) Sales: sales@itko.com Web: http://www.itko.com
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