Parties in case of conflicts and to negotiate

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parties in case of conflicts and to negotiate decisions with the respective parties. In addition, the change manager is responsible for communicating and documenting decisions. 8.6.3 The Change Request Template for change requests In order to be able to manage changes of requirements during require- ments engineering, they have to be documented in a purpose-oriented manner. A change request documents the desired change and contains additional information for the management of the change request. A change request should contain the following information: Change information Identifier: The identifier makes it possible to uniquely identify a change request at any point during the life cycle of the system. Title: The title summarizes the key concern of the change request in one brief statement. Description: The description documents the requirement change as precisely as possible. It can contain information on the effect of the changes as well. Justification: The most important reasons as to why the change is nec- essary are listed here. Date filed: The date at which the change request was filed. Applicant: The name of the person that issued the change request. Priority (in the applicant’s opinion): The importance of the change request according to the applicant’s opinion. Management information for the change request In addition to the preceding change information, the following informa- tion for requirements change management is helpful: Change validator: The person that verifies if the change has been per- formed correctly. Impact analysis status: Flags whether an impact analysis has already been performed on the change request. CCB decision status: Flags whether the change control board has already decided upon the change request. CCB priority: Documents the priority of the change request assigned by the change control board. Responsible: Documents the person that is in charge of performing the change request.
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134 8 Requirements Management System release: Documents in which system release the changed requirement shall be implemented. 8.6.4 Classification of Incoming Change Requests Corrective, adaptive, and exceptional changes After it has been filed, the change request is classified by the change man- ager and the change control board. Typically, the change manager pre- classifies incoming change requests that will be introduced, adapted (if necessary), and finally approved (or rejected) during the next change control board meeting. A change request can be classified according to the following three categories: Corrective requirement change: A change request is classified thusly if the reason for the change request is a failure of the system during its operation that can be attributed to an error in the requirements.
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