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AC1 - Source Data Preparation and Authorisation

This topic is intended to enable collaboration and sharing of information to facilitate a better understanding and approach to implementing this COBIT control objective based on the risk, value and guidance provided by its corresponding control practices.

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Source Data Preparation and Authorisation

Ensure that source documents are prepared by authorised and qualified personnel following established procedures, taking into account adequate segregation of duties regarding the origination and approval of these documents. Minimise errors and omissions through good input form design. Detect errors and irregularities so they can be reported and corrected.

View value and Risk Drivers  help

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Value Drivers

  • Data integrity
  • Standardised and authorised transaction documentation
  • Improved application performance
  • Accuracy of transaction data
  Risk Drivers
  • Compromised integrity of critical data
  • Unauthorised and/or erroneous transactions
  • Processing inefficiencies and rework

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  1. Design source documents in a way that they increase accuracy with which data can be recorded, control the workflow and facilitate subsequent reference checking. Where appropriate, include completeness controls in the design of the source documents.
  2. Create and document procedures for preparing source data entry, and ensure that they are effectively and properly communicated to appropriate and qualified personnel. These procedures should establish and communicate required authorisation levels (input, editing, authorising, accepting and rejecting source documents). The procedures should also identify the acceptable source media for each type of transaction.
  3. Ensure that the function responsible for data entry maintains a list of authorised personnel, including their signatures.
  4. Ensure that all source documents include standard components and contain proper documentation (e.g., timeliness, predetermined input codes, default values) and are authorised by management.
  5. Automatically assign a unique and sequential identifier (e.g., index, date and time) to every transaction.
  6. Return documents that are not properly authorised or are incomplete to the submitting originators for correction, and log the fact that they have been returned. Review logs periodically to verify that corrected documents are returned by originators in a timely fashion, and to enable pattern analysis and root cause review.

 

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Volume 2, 2019
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Volume 3, 2012
by Kai-Uwe Ruhse, CISA, PCI QSA, and Maria Baturova
This article describes real cloud computing project case studies, which show that moving to the cloud is an important strategic decision for IT managers.
Volume 3, 2012
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To accelerate investments in security, we security professionals must do a better job of communicating the reality of the threats that our organizations face.
Volume 3, 2012
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This two-part article describes one framework for performing effective audits of applications.
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