Flow Map Manual

Understanding the Flow Map Host Components
Flow Map Host
098935 Tandem Computers Incorporated 3–3
Sample Processing Object Hierarchy
PROCESS
Group A
Program C Program D Program E
PROCESS F PROCESS G PROCESS H PROCESS I PROCESS J PROCESS K
Sample Database Object Hierarchy
FILE Group A
FILE C FILE D FILE E
DISKFILE F DISKFILE G DISKFILE H DISKFILE I DISKFILE J DISKFILE K
Connections Flow Map generates connection information as well as objects. A connection is
represented by arrows showing the flow of information between objects.
There are two types of connections:
1. Process-to-File (PF)
2. Process-to-Process (PP)
Connection attributes are collected from Measure entity counters for the specific data
flow between pairs of objects or object groups. Process-to-File connections are
aggregated from FILE entities (Type 3) and DISCOPEN entities. Process-to-File
connections to a DISKFILE object contain only DISCOPEN entity counters. Process-to-
Process connections are formed from Measure FILE entities (type 0).
Connections are always formed between objects at the lowest levels of the hierarchy.
For example, if PROCESSes and DISKFILEs exist, then there is a Process-to-File