Explanation/Reference:
Explanation:
It is unlikely that developers will have a better understanding of the requirements than testers, partly because testers work closely with the user community (and may be drawn from it) and partly because developers seldom work with the complete set of requirements in a medium to large development.
Testers may raise incidents related to the difference between user expectations and the specification, but these are not unnecessary. Such issues are more likely to arise at the later stages of testing.
Early testing (unit testing) is usually done most effectively by developers with a good understanding of the code and the development environment; they can be more efficient and more effective at this level. Later independent stages of testing offset any disadvantage from the lack of independence at unit testing level.

Explanation/Reference:
Explanation:
The Author is the only role that is typically used in a review.
A Champion might sponsor the review process but is not a defined role within an actual review; a Project Sponsor, if technically competent, might be asked to play a defined role within the review process, but whilst using that role they will not be a Project Sponsor; finally, a Custodian might ensure the results are stored safely but would not be involved in the actual review itself.

Explanation/Reference:
Testlet 1
A software development company that sells an established capture-replay tool has decided to complement it with a test management tool. The capture-replay tool was developed over a number of years and is used by a large number of clients.
The test management tool will be developed by the same team that developed the capture-replay tool, using the same technology. The company test strategy mandates that structural testing is focussed at the component test level and dynamic non-functional testing is focussed at the acceptance test level.
In response to growing customer demand, it is proposed to develop the test management tool in an incremental manner. Each increment will be developed using the V life cycle model. The target platform is a PC in a local area network. The PC uses a proprietary relational database and communicates with a single PC which acts as a server.
The test management tool must interface with the company s capture replay tool. Over the first 12 months of the development period the following functionality will be developed for the tool (in two increments):
basic requirements management, support for test case creation; support for test procedures, test scripts and test suites. The functionality to be included in later increments will be driven by customer demand:
however they expect to provide an incident management system, a web front-end, and interfaces to other proprietary tools and database management systems.