Create the explosion data flow diagram for process 4, DELETE COMPUTER. The following table summarizes input, process,

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Create the explosion data flow diagram for process 4, DELETE COMPUTER. The following table summarizes input, process, and output. Describe each process and data flow in the repository. When completed, zoom to 100 percent, move any data flow lines that are not aligned correctly, move the data flow labels for a professional-looking graph, and print the diagram.

Process: 4.1 KEY DELETE ID

Description: The computer ID is keyed interactively

Input: 1. DELETED COMPUTER ID

Output: 1. KEYED DELETE

Process: 4.2 OBTAIN COMPUTER RECORD

Description: COMPUTER MASTER record is read to ensure that it exists

Input: 1. KEYED DELETE (interface)

2. COMPUTER RECORD, from the COMPUTER MASTER data store

Output: 1. NOT FOUND ERROR (interface)

2. VALID COMPUTER RECORD

Process: 4.3 CONFIRM COMPUTER DELETION

Description: The computer information is displayed on the screen for operator confirmation or rejection

Input: 1. VALID COMPUTER RECORD

Output: 1. REJECTED DELETION (interface)

2. CONFIRMED DELETION

Process: 4.4 DELETE COMPUTER RECORD

Description: The computer record is logically (not physically) deleted from the COMPUTER MASTER data store by rewriting the record with an I for inactive in the Record Code field

Input: 1. CONFIRMED DELETION

Output: 1. DELETED COMPUTER, a double-headed arrow to the COMPUTER MASTER data store

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Related Book For  book-img-for-question

Systems Analysis and Design

ISBN: 978-0133023442

9th edition

Authors: Kenneth E. Kendall, Julie E. Kendall

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