High-Value IT Consulting: 12 Keys to a Thriving Practice in Software

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High-Value IT Consulting: 12 Keys to a Thriving Practice
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you encounter resistance or misunderstanding about structured testing approaches within your organization or at client sites: Misconception 1: Testing is done in a single phase This point has been stressed a number of times in this book: never leave the testing process to a single phase that occurs sometime after development is completed It is an ongoing process that starts in the planning phase If your engagement focuses on producing deliverables like studies, architectures, and designs, ensure that you are building client buy-in while the documents are being constructed This means testing your assumptions and conclusions iteratively throughout the engagement so that the client knows what you are going to deliver before you actually publish the final versions of your documents Only this will allow you to establish the necessary infrastructure, test cases, and teams that are necessary to properly assess or recommend a nontrivial application Misconception 2: Testing is expensive Compared to what It is much more expensive to fix a problem the farther out you go in the lifecycle of an engagement The return on investment (ROI) on testing has been proven time and time again A problem found in the planning phase takes one unit of work to finish By the time the same problem gets into the development phase, it can easily require five units of effort to fix Losing a client means losing a revenue opportunity and a potential reference Misconception 3: Developers don t test No piece of code should ever be passed to a QA team until it is unit tested by the development team Saying that code is x percent done is meaningless unless unit tests have shown that it conforms, at a minimum, to the technical specifications Bad code quality is one of the fastest ways to ruin morale on a development team Misconception 4: Testing is a scientific process Testing is partially a scientific process, but there is also a strong artistic component to it Get your resources to try creative ways to break an application before it is launched The testing architect or testing manager should find resources who may have some spare cycles to examine the application while it is being built Don t forget to track their findings so that they are acted on
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Testing, Deploying, and Closing an Engagement
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Different Types of Testing
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Each type of testing is driven by a different set of objectives Some are highly suited to automation and tools Others are dependent on prewritten test plans Table 11-1 summarizes the more common types of testing approaches used by practitioners For each testing type, the table identifies the common objectives, the primary owners, and how much the testing types can benefit from the use of automated scripting and testing tools The primary owner of a testing type is also its chief champion He or she guides its activities to completion Primary owners or champions are generally supported by other resources and typically report to a testing manager or testing architect These roles ultimately report to the engagement manager, who is responsible for the engagement quality The engagement manager may also be coordinating different testing teams, some of which are at other vendors, locations, or even offshore
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Table 111 Common Types of Testing
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Type of Testing Unit Objective(s) Chief Champion Benefits from Automation Some
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Developers Determine the conformance of code with technical and/or functional specifications Creative manager Test and improve the usability, elegance, appearance, stickiness (eg, get visitors to stay on the site longer and to come back), and efficiency of the user interface(s) Business analysts Examine in detail the application functionality and how it conforms to the detailed business requirements Test the interfaces between the different solution components to ensure that they function together (sometimes called end-to-end testing) System analysts
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