Planning among other things the goal of the

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Planning Among other things, the goal of the inspection, the work results that are to be inspected, and the roles and participants are determined during the planning phase. Overview In the overview phase, the author explains the requirements to be inspected to all team members so that there is a common understanding about the requirement among all inspectors. Error detection In the error detection phase, the inspectors search through the requirement for errors. Error detection can be performed individually by each inspector or collaboratively in a team. Individual inspection has the advantage that each inspector can concentrate on the requirements. On the other hand, team inspections have the advantage that communication between the inspectors creates synergy effects during error detection. During the course of error detection, any errors that are found are purpo- sively documented. Error collection and consolidation In the error collection phase, all identified errors are collected, consol- idated, and documented. During consolidation, errors that have been identified multiple times or errors that aren’t really errors are identified. The latter can be the case if, for instance, an inspector makes wrong assumptions about a requirement or interprets some constraint the wrong way. Along with consolidation, the identified errors and correcting meas- ures are documented in an error list. Inspections are also known as techni- cal reviews . Roles during inspection For an inspection to be performed, the following roles must be staffed with suitable personnel:
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7.5 Requirements Validation Techniques 99 Organizer: The organizer plans and supervises the inspection process. Moderator: The moderator leads the session and ensures that the pre- determined inspection process is followed. It is advisable to select a neutral moderator because the moderator could potentially balance out opposing opinions of authors and inspectors. Author: The author explains the requirements that he created to the inspectors in the overview phase and later on is responsible for correct- ing the errors identified. Reader: The reader introduces the requirements to be inspected suc- cessively and guides the inspectors through them. The role of the reader should be given to a neutral stakeholder so that the inspectors can center their attention on the requirements instead of on the inter- pretation of the author. Often, the moderator is also the reader. Inspectors: The inspectors are responsible for finding errors and com- municating their findings to the other members of the project team. Minute - taker: This person takes minutes of the results of the inspec- tion. 7.5.3 Walk-Through Lightweight review In requirements validation, a walk-through is a lightweight version of a review. A walk-through is less strict than an inspection and the involved roles are differentiated to a lesser degree. During a walk-through, at least the roles of the reviewer (comparable to the inspector), author, and minute-taker, and potentially the moderator, are staffed.
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