Featured Partner
Software Productivity
Research LLC, founded in 1984 by Capers Jones, develops and markets SPR
KnowledgePLANĈ, an industry-leading parametric software project estimation tool.
SPR provides a broad range of consulting and performance benchmarking assessment
services and training programs. With SPR's guidance, organizations improve their
software development practice through knowledge-driven diagnosis, tools, and
management.
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E-Learning Courses
ISTQB Test Engineering Foundation
US$ 999
ISTQB Advanced Test Analyst
US$ 999
Managing the Testing Process
US$ 999
Software Test
Estimation US$ 499
Assessing Your Test Team
US$ 499
ISTQB Advanced Test Manager
US$ 999
Each course includes three months of on-line access, notesets,
exercises and either sample exam questions (for ISTQB course) or knowledge-check
questions (for other courses). ISTQB courses are written against the latest
ISTQB Foundation and Advanced syllabi released in 2007. Prices shown are
for asynchronous courses (pure e-learning). Blended courses (with a
facilitator) and custom training packages are also available.
|
Preview the Foundation Level E-Learning Course for
Free!
If you would like to try the first two
chapters of our Test Engineering Foundation course without obligation and for
free, click here to access
it. |
ISTQB Certified Tester
Training
July 22-25 San Francisco, CA Test Engineering Foundation
$2,000
July 28-August 1 Toronto, Canada
Advanced Test Analyst
$2,650
September 2-5, 2008 Austin, TX Test Engineering Foundation
$2,000
September 8-12
Ottawa, Canada
Advanced Test Analyst
$2,650
September 22-26
Las Vegas, NV
Advanced Test Analyst
$2,650
September 29-October 3
NYC Area, New York
Advanced Test Manager
$2,650
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Other Public Courses
September 22-24
Denver, CO
Performance Testing Immersion Workshop
$2,500
October 21-23
Austin, TX
Performance Testing Immersion Workshop
$2,500
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Rex Black will be a keynote speaker at devLINK 2008, presenting
"Stranger in a Strange Land: The IT Professional in the Outsourced
Project". | |
Dear
Reader,
Welcome to the July newsletter. In this newsletter, we initiate a new
series that we're excited about: guest featured articles. Approximately
every other newsletter will feature an article from a fellow testing, quality,
or software engineering expert, illustrating some key idea that we find very
important at RBCS.
To inaugurate this series, we're proud to have an article from Capers
Jones. Capers is Chief Scientist Emeritus of Software Productivity
Research (SPR), an author of numerous useful books on software metrics
(including testing and quality metrics) and software engineering, and a
pioneer in the fields of software estimation and software sizing (in particular
with function points).
I have relied on Capers' metrics for benchmarking on a number of
engagements. We're very pleased to offer you access to the fine article
that Capers has provided, which will give you a number of useful ideas and
useful metrics to consider as you assess the state of quality and testing in
your organization.
Speaking of SPR, RBCS and SPR have joined forces to offer a unique set of
assessment packages for their clients. One such service involves a joint
assessment with RBCS and SPR consultants where we benchmark the organization's
testing and quality capabilities against SPR's industry-leading database of
metrics from thousands of projects. Another such service involves a joint
assessment where RBCS consultants augment the SPR team to provide thorough
analysis of the testing aspects of the organization's capabilities. These
services will allow assessed organizations to gain tremendous insight into their
testing and quality capabilities in relation to industry practices.
For those of you looking to learn new ways to move defect discovery and
removal upstream in your projects, we're proud to offer a new class on technical
inspections from Professor Paul Jorgensen. You'll find more details on
this class below, including links to public course dates and the outline.
In addition, we have a few ISTQB-related announcements to make in this
newsletter. From Advanced course accreditation to Advanced books to
Advanced e-learning, there's interesting news for those of you moving to the
Advanced level of ISTQB certification. Finally, we have some news
about two interesting conferences, the devLINK conference in Nashville, where
I'll be speaking, and the CAST conference in Toronto, which RBCS is
sponsoring. Assuming my keynote goes well at devLINK, I can always say
that, for one moment at least, I was very popular in the cultural capital of
country music! The few of you who have been unfortunate enough to hear me
sing know what an improbable event that is.
So, as you can see we at RBCS have been busy the last couple months.
It shows in the volume of information in this newsletter. We hope you find
it informative and useful.
Regards, Rex Black,
President | |
Measuring Defect Potentials And
Defect Removal Efficiency
by Capers Jones, Founder and Chief
Scientist Emeritus
Software Productivity Research, LLC
Abstract
There are two measures that have a strong influence on the outcomes of
software projects: 1) Defect potentials; 2) Defect removal efficiency.
The term "defect potentials" refers to the total quantity of bugs or
defects that will be found in five software artifacts: requirements, design,
code, documents, and "bad fixes" or secondary defects.
The term defect removal efficiency refers to the percentage of total
defects found and removed before software applications are delivered to
customers.
As of 2008 the U.S. average for defect potentials is about 5 defects
per function points. The U.S. average for defect removal efficiency is only
about 85%. The U.S. average for delivered defects is about 0.75 defects per
function point.
Software project costs and schedules decline for projects whose
cumulative defect removal efficiency level is approximately 95%. Achieving 95%
removal efficiency requires a combination of formal inspections and formal
testing. Testing alone is insufficient for optimal defect removal
efficiency.
Cautions are given against measuring quality using either "cost per
defect" or "defects per KLOC' because both metrics violate standard economics
and yield incorrect results.
To see this article in its entirety, visit our library. To learn
more about Software Productivity Research, LLC, read our "Featured Partner"
article in this
newsletter. |
Some of you may have heard Rex's sayings over the
years. We decided to coin them "Rexisms" for your reading pleasure. So here they
are to ponder - some useful aphorisms to help you plan, prepare, perform, and
perfect your testing activities, compiled from over a quarter-century of
software and systems engineering experience.
-
"One key, but often overlooked, benefit of
risk-based testing is test prioritization. Remember, without
prioritization, nothing is a priority."
-
"Contrary to the management cliche, there is
such a thing as a dumb question. Any question that a person asks in a meeting,
which is answered in background material provided before the meeting, is not
only a dumb question, it is a rude
question." |
RBCS Adds a
New Course:
Industrial-Strength Technical Inspections
This course was developed by and is taught by Paul
Jorgensen. It provides software developers, testers, software project
managers, and software quality assurance professionals with the essential ideas,
processes, tools and skills they need in order to implement and conduct an
effective software review process. This hands-on course uses a combination of
lectures and exercises to cover the basic forms of software technical reviews,
with an emphasis on technical inspections. The course is based on an extremely
mature industrial software review process, refined by two decades of university
teaching and research. In addition to the basics, the course presents various
subtle checks and balances, only discovered through long industrial practice.
The review process is presented, both through theory and a hands-on exercise,
based on a sample software development artifact-a Use Case description of an ATM
system. The example material includes all the items essential to a thorough
technical inspection: the customer requirements, a Use Case standard, a Use Case
review checklist, the actual Use Case document, review forms, and a sample
review report outline.
|
First Advanced Level Test Analyst and Advanced Level
Test Manager Courses Accredited by the ASTQB
We are proud to announce the accreditation of
our new ISTQB Advanced Test Analyst and Advanced Test Manager courses by the
ASTQB, based on the new Advanced syllabus. These are the first Advanced
Level courses under the new syllabus to be accredited by the ASTQB. We
offer these courses both in instructor-led and e-learning formats.
|
Advanced Software Testing: Volume 1
and Advanced Software Testing: Volume 2 are coming
soon!
RBCS President Rex Black
is currently editing the final text of Advanced Software Testing: Volume
1, which will cover the ISTQB Advanced Syllabus from the Advanced Test
Analyst perspective. It includes a complete discussion of those sections of
syllabus pertinent for test analysts, a comprehensive set of exercises with
fully worked-out solutions, extensive examples from actual projects, and a large
set of sample exam questions. It should be available by mid-August if not
earlier.
Once finished
with that book, Rex will turn his attention to Advanced Software Testing:
Volume 2, which will cover the ISTQB Advanced Syllabus from the Advanced
Test Manager perspective. It will include the same level of materials
as Volume 1, and should be available no later than
mid-October.
|
RBCS
Sponsors the 3rd Annual AST Conference
July 14-26, 2008
Toronto, Canada
The Association for Software Testing is pleased to announce CAST 2008, to
be held July 14-16 in Toronto, Canada, a city which features enormous diversity
in culture, businesses, educational institutions, and the arts. Toronto is the
perfect location for a conference on this year's theme: "Beyond the Boundaries:
Interdisciplinary Approaches to Software Testing."
With keynote addresses by Jerry Weinberg, Cem Kaner, Rob Sabourin, &
Brian Fisher; tutorials by Scott Barber, Hung Nguyen, Julian Harty, & Jerry
Weinberg; and plenty of exciting sessions and events on the program, CAST is the
conference no career software tester wants to miss.
Save 10%
Register today and receive a 10% discount. Enter Discount
Code: trebcns
|
RBCS Principals Fund Annual UCLA
Scholarship
As some of you may remember, that summer between high school and college
can be a very exciting but stressful time. For some highly gifted individuals,
that stress is compounded by the worry of how to finance a college
education. We are happy to announce that RBCS principals, Rex Black and
Laurel Becker, are continuing their commitment to higher education by, once
again, sponsoring a UCLA Alumni Scholarship. The 2008 scholarship
recipient will be chosen in the coming
months. | |
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