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Rational Suite
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Performance Studio
More than ever before, the success of your entire business depends on accurate, effective and easy-to-use performance testing. Most. organizations know this, yet unexpected failures happen every day. What makes effective load testing so difficult? For one thing, performance testing typically begins at the end of the software development cycle, where time is short. Slack in the schedule, if there ever was any, has been eaten away long ago. Finding a serious problem late in the cycle is likely to cause the release date to be delayed, or the project to be canceled altogether—unwelcome options in a time when everyone from end users to wall street analysts are expecting new software releases faster and faster. On top of that, the tools a tester uses may be difficult to scale, require tedious programming, or provide too little information to diagnose or reproduce problems. Or perhaps the tools are a resting hodgepodge, barely integrated with each other or the tools used by other team members — managers, analysts and developers. Everyone wants to know, "Are we really ready to release?" — and you, the performance tester, are expected to give them the final answer, quickly and correctly.
The Only End-To-End Testing Solution
How exactly does Rational Suite PerformanceStudio help? Rational Suite
PerformanceStudio unifies the entire software development team — analysts, developers
and testers by giving everyone the same answer to the question, "Are we really
ready to release?". And, while Rational Suite PerfurmanceStudio is optimized
specifically for the role of load tester, it is the industry's only end-to-end
testing solution for the entire software development life cycle. With Rational
Suite PerformanceStudio testers are no longer an isolated group working in the
high-pressure days before a looming deadline. By improving team communication,
testing early and iteratively throughout development, and using a single set
of tools, methods, data and metrics, Rational Suite PerformanceStudio integrates
the tester with the rest of the development team. The benefits extend beyond
the test department to the entire organization: lower costs, less risk, and
the ability to deliver high-quality, scalable, reliable e-business applications
in less time. Rational Suite PerformanceStudio is a complete solution, not just
for e-business, but for ERP and client server environments as well.
Rational Suite PerformanceStudio improves team communication by linking all the team's test assets (requirements, plans, procedures, tests and results) in a single repository, with a single tracking system and a common user interface. For Testers and developers, this means that defects are easily located and reproduced, eliminating frustrating communication problems between team members. Moreover, with Rational Suite PerformanceStudio, testers can provide analysts with the crucial performance data they need to make key architectural design decisions when they need it - early in the project life cycle. And with a few mouse clicks, anyone on the team can get detailed report on requirements coverage, code coverage, defects, even specific team assignments and responsibilities.
With Rational Suite PerformanceStudio you can find more defects earlier, track them better, retest subsequent builds, and measure progress more accurately than ever before. Integrated instrumentation lets you combine regression testing with code coverage or profiling, and automated reliability testing lets you focus on the more challenging functional and load testing problems.
SmartTest Your Web in Internet Time
The success of your e-business depends on a complete, precise evaluation
of your entire e-business application before deployment. You must test the functional
requirements of your application as it operates under a production load, and
you must measure system response times to verify performance requirements. Your
tools have to be able to easily create scalable scripts using variable input
data and provide you with accurate, detailed results. Rational Suite PerformanceStudio
delivers unparalleled power to ensure that your application meets both the functional
and performance requirements established for it with four unique and innovative
technologies: WebSmart Recording, DataSmart Recording, LoadSmart Scheduling,
and Transaction Smart Analysis.
WebSmart Recording
Instead of blindly recording static URLs in test scripts, the Rational Robot
component of Rational Suite PerformanceStudio uses WebSmart Recording to record
robust scripts that recognize and Lest objects in HTML, DHTML, and the WWW Consortium's
Document Object Model (as well as Visual Basic, Visual C/C++, Java, ActiveX,
PowerBuilder, and more). With the click of a check box you can run other tools
as you execute Rational Robot's efficient and highly reusable functional tests.
For example, as part of your regression tests, you can also pinpoint application
bottlenecks with Rational's application profiler, test for reliability issues,
such as memory-leaks and run-time errors, and obtain detailed code-coverage
information to identify untested code, Rational Robot creates effective, accurate
test scripts in two ways:
Rational Suite PcrformanceStudio's DataSmart Recording automatically identifies literal data from your recorded sessions that are considered "datapool" candidates. These candidates represent user input that may need to be varied when you use a single recorded user session and generate a load of 100s or 1000s of Virtual Users. From this datapool, testers graphically select data fields for Rational Suite PerformanceStudio to vary in multiuser Tests.
LoadSmart Scheduling
Performance tests are only as valid as their underlying workload assumptions.
In a typical production environment, different user groups put different loads
on the target system. For example, an order entry group may tax the system's
data Insert capability, while a report generation group exercises data reads.
With l.oadSmart Scheduling you can easily build complex usage scenarios, without
programming, to emulate user group activities and create workload schedules.
By weighting the various user groups in your schedule, you can quickly produce
very accurate system loads. For example, you can specify that 20% of users belong
to the Query group, 30% to the Entry group, and 50% to the Report group. Once
you have created your graphical workload, you can easily scale your load test
from a handful of users to tens of thousands, each performing various tasks,
without having to create a new schedule for each user count.
TransactionSmart Analysis
How well are your business transactions being performed? Which operations are
taking the most time? What can you do to improve the performance of your system?
Rational Suite PerformanceStudio's TransactionSmart Analysis gives you the information
you need to answer these questions with three levels of diagnostic information
to isolate the cause of your performance bottleneck (see illustration below).
With this data, you can analyze the business transaction, low level client calls, and system resources that are under stress. Only Rational Suite PerformanceStudio's TransactionSmart Analysis provides you this level of comprehensive, detailed data to tune your application, ensuring the best possible response times for your customers.
Architect for Performance
Many development projects follow a fairly standard, linear process: gather requirements,
develop an architecture with a visual model, implement client and server components,
and finally test the performance of the system, Because performance testing
waits until development is complete, a great deal of risk is carried throughout
the project. If load testing uncovers serious performance problems in the architecture,
it is often too late in the project life cycle to make the necessary changes
and keep the project on schedule. But what if you could performance test your
server configuration sooner? Your analysts would have access to the information
they need to make architectural changes while there is still time to implement
them. Risk would be reduced earlier, and there would be fewer surprises and
less anxiety in performance tests late in the project, Rational Suite PerformanceStudio
delivers this unprecedented capability through a component called Rational PerformanceArchitect.
With PerformanceArchitect, you can test performance early in the project life
cycle — before developing your client software. Rational PerformanceArchitect
generates virtual user test scripts directly from information in your visual
model, allowing you to test multiple architecture designs before spending time
and money implementing the client applications. With performance tests results
already in hand, analysts can evaluate the performance impact of various design
alternatives, such as the implementation of a thick or a thin client Your analysts
can Architect for Performance, quickly and confidently determining the optimal
architecture for your e-business application.
Why Not Make Your Job Easier?
In today's frenetic, high-stakes software development environment, effective
performance testing is a core competence. You must be able to do it, and do
it well - with Rational Suite PerformanceStudio, you can. Analysts, developers
and testers have a powerful advantage with award-winning tools at every phase
of development, unique capabilities like WebSmart recording, DataSmart Recording,
LoadSmart Scheduling, TransactionSmart Analysis, and the ability to Architect
for Performance. Rational Suite PerformanceStudio unifies your entire software
development team with a complete, end-to-end solution to ensure that your e-business
application will be ready to release—on schedule.
Use Rational Suite PerformanceStudio and keep your e-business out of the failure headlines.
All of the products in the Rational Suite family share a common foundation of team-unifying tools, and include additional role-specific tools to optimize each suite for the individual analysts, developers and testers on your team.
For the tester, Rational Suite PerformanceStudio provides:
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ADDITIONAL FEATURES
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Дополнительная информация
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