What are DFD, ERD, and Processing Methods? (AIS Explained) | AIS Ep. 4
In this video, Prof LJ explains how Accounting Information Systems (AIS) document and process business transactions. This lesson introduces major system documentation techniques used in AIS and explains how organizations process transactions using batch and real-time processing methods.
The discussion covers key tools used to visualize and analyze business systems, including data flow diagrams, entity-relationship diagrams, and various types of flowcharts. It also explains how processing methods influence internal control, reporting timeliness, and system efficiency in organizational environments.
This video is part of the Accounting Information Systems (AIS) Series (Episode 4), designed to strengthen learners’ understanding of system documentation and transaction processing in AIS.
Topics covered:
• Importance of systems documentation in AIS
• Data Flow Diagrams (DFDs)
• Entity Relationship Diagrams (ERDs)
• Document flowcharts and system flowcharts
• Program flowcharts and record layout diagrams
• Batch processing vs real-time processing
• Record updating approaches and audit trails
• Backup, recovery, and system reliability
• Legacy systems vs modern systems
This lesson is intended for students in Accounting, Accounting Information Systems, IT Audit, and Information Systems, as well as professionals seeking to understand how accounting systems document and process business transactions.
For the full AIS series, please access the playlist here: • Accounting Information Systems — From Tran...
References:
Hall (2018)
Romney & Steinbart (2018)
Laudon & Laudon (2020)
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