test methodologies

Conference Presentations

Software Inspections for the Common Folk

Many have tried to implement software inspections in commercial development shops ... and failed. Common reasons include “not enough resources," "takes too long," and "makes people uncomfortable." Ron Yun demonstrates how ADP has implemented both "full” and "lite" inspection practices that reduce resources, automate many aspects of the process, and help take the personality issues out of the process. With their practices, ADP completes inspection meetings quickly and has eliminated all manual forms. They have merged key inspection information with data from their defect tracking system to determine progress toward the goal of finding defects as early as possible in development. Their automation tools track the identified issues, provide a permanent audit trail of the inspection, and automatically generate metrics to report status and gauge effectiveness.

Ronald Yun, ADP
It's Too Darn Big: Test Techniques for Gigantic Systems

Structuring test designs and prioritizing your test effort for large and complex software systems are daunting tasks, ones that have beaten many, very good test engineers. If you add concurrency issues and a distributed system architecture to the mix, some would simply throw up their hands. At Microsoft, where Keith Stobie plies his trade, that is not an option. Keith and others have reengineered their testing, employing dependency analysis for test design, model property static checking, "all pairs" configuration testing, robust unit testing, and more. They employ coverage to successfully help select and prioritize tests and make effective use of random testing including fuzz testing security. Finally, models of their systems help them generate good stochastic tests and act as test oracles for automation.

  • Test checklists for large, complex, distributed systems
Keith Stobie, Microsoft Corporation
A Systematic View of User Acceptance Testing

Acceptance testing is a vital and specific form of testing whether you are tasked with rolling out an enterprise application package, releasing a major system enhancement, or developing acceptance tests in an agile development project. In addition, acceptance tests can give some teeth to service level agreements and software acquisition contracts. However, most treat acceptance testing as the same activity as system testing-but done by different staff. That is wrong! Because acceptance testing is not about bug hunting and breaking the software, you need a different strategy. With over 25 years of experience covering acceptance testing for all types of systems from safety critical control systems to standard financial applications, Geoff Quentin shares his views on how to do acceptance testing correctly.

Geoff Quentin, QBIT Ltd
Free Test Tools are Like a Box of Chocolates

You never know what you are going to get! Until you explore, it can be hard to tell whether a free, shareware, or open source tool is an abandoned and poorly documented research project or a robust powerhouse of a tool. In this information-filled presentation, Danny Faught shows you where open source and freeware tools fit within the overall test tool landscape. During this double session, Danny installs and tries out several tools right on the spot and shares tips on how to evaluate tools you find on the Web. Find out about licensing, maintenance, documentation, Web forums, bugs, and more. Discover the many different types of testing tools that are available for free and where to find them. Danny demonstrates examples of tools that you can put to use as soon as you get back to the office.

Danny Faught, Tejas Software Consulting
Using Personas to Improve Testing

Too often testers are thrown into the testing process without direct knowledge of the customers' behaviors and business process. As a tester, you need to think and act like a customer to make sure the software does-in an easy-to-use way-what the customer expects. By defining personas and using them to model the way real customers will use the software, you can have the complete customer view in designing test cases. Get the basics of how to implement customer personas, their limitations, and ways to create tests using them. See examples of good bugs found using personas while learning to write bug reports based on them.

  • What you need to know to develop customer personas
  • Use customer personas for designing test cases
  • The types of bugs found by using personas but missed by other techniques
Robyn Edgar, Microsoft
Managing Agile Test Departments

What is the impact of agile methods on test departments and testers? How do you manage testing in an agile test department? Robert Martin, an early adopter and proponent of agile development practices, discusses his experiences and recommendations for how to organize and run an agile test department. He describes the principles, practices, tools, and metrics that are important to successful test management within agile development. Agile methods change the role of test departments from verification to specification. With agile methods, you develop tests before the code, and the tests become the detailed requirements documentation. This paradigm shift has a profound impact on both the test team and the programming team. Learn about the test management problems that often arise in making the transition to agile development and common solutions that address these issues.

Robert Martin, Object Mentor
Testers and Testing in the Agile Development

You have heard about agile software development techniques such as eXtreme Programming (XP), Scrum, and Agile Modeling (AM). The industry is buzzing with everything from "this is the greatest thing ever" to "it's just hacking with a fancy new name." Comments like "there is no place for testers because developers and users do the testing now" and "testers play an important role in the agile methods" are both common. Scott Ambler, an early proponent of the agile movement, explains the fundamentals, values, and principles of agile development. He describes a range of agile techniques and explores many myths and misconceptions surrounding agility. Agile software development is real, it works, and it may be an important part of your future in testing. Better testing and improved quality are critical aspects of agile software development, but the roles of traditional testers and QA professionals on agile projects remain unclear.

Scott Ambler, Ronin International, Inc.
A Strategic Approach - "Beta the Business"

Beta testing is an industry standard practice to obtain user feedback prior to general availability of software. Have you ever considered that the Beta release can be used to validate the software's value to customers and application users? Extending the Beta concept will result in higher customer satisfaction (and higher revenue for commercial products). Also, you can employ Beta testing to evaluate not only the software product, but the distribution (and sales) process, training, customer support, and usage within your customers' environments. Far beyond just finding defects in the product, you can focus Beta testing on how well the software is meeting your customers' needs. What does that mean to the Development team and the organization as a whole? What are the risks and challenges that we face? What are the rewards?

Pete Conway, EMC Corporation
Getting Started with Test Driven Development

Test-driven (or test first) development (TDD) is an excellent method for improving the quality of software applications. It forces the programmer to focus on ensuring that the behavior of the objects at the lowest level of the system is appropriate. It also provides a mechanism to ensure that future source code changes do not break existing behaviors. Using C++ as the example language, Robert Walsh presents an overview of test-driven development, available TDD testing frameworks, and a demonstration of a project started from scratch using TDD. You can apply these concepts to other languages, including Java and Visual Basic. Learn how to overcome the initial hurdles many developers experience when starting out with TDD.

  • An introduction to test-driven development using C++ as the example language
  • The testing frameworks available for TDD
  • Programming tasks that are difficult to implement using TDD
Robert Walsh, EnvisionWare, Inc.
Preventing Security Breaches at the Source

Security is a complex and often overwhelming issue. You cannot rely solely on trying to prevent hackers from entering your systems. Instead, you must ensure that the system safeguards itself if a hacker does break in. Three of the most common internal software weaknesses hackers exploit are dangerously constructed SQL, buffer overflows, and runtime exceptions that are not properly handled. Although testing existing code for these defects can help, it is not fool proof. You also need to make a concerted effort to prevent security vulnerabilities from being introduced as the team is writing code. Through the application of practices, such as static analysis, dynamic analysis, unit testing, and runtime error detection, you can jumpstart your security efforts and keep the hackers at bay.

  • The most common internal software weaknesses that hackers exploit
Sergei Sokolov, ParaSoft Corporation

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