A01 chaf6542 06 se fm indd

No.

Task description

Chart 

symbols

Distance 

(m)

Average 

time (hours)

 1

Receive invoice, stamp and scan

● � �

D

–

0.1

 2

Email to first payable clerk

�

�

�

D

–

0.1

 3

In worklist of first payable clerk

�

�

�



–

5

 4

Fill in purchase order, code job number

● � �

D

–

0.5

 5

Email to MD

�

�

�

D

–

0.1

 6

In MD’s worklist

�

�

�



–

12

 7

Review and approval by MD

● � �

D

–

0.1

 8

Email to second payable clerk

�

�

�

D

–

0.1

 9

In worklist of second payable clerk

�

�

�



–

5

10

Add vendor number and due date

● � �

D

–

0.1

11

Key into accounting system

● � �

D

–

0.1

12

Pay invoice and mark task as complete

● � �

D

–

0.1

Flow process chart for invoice processing – re-engineered process

Table 11.3

Answers to activities can be found at www.pearsoned.co.uk/chaffey

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Chapter 11  Analysis and design

network). Here, nodes are added between the boxes representing the tasks, to define pre-

cisely the alternatives that exist following completion of a task. The most common situation 

is that one activity must follow another, for example a check on customer identity must be 

followed by a credit check. Where alternatives exist, the logic is defined at the node as fol-

lows: where a single pathway is taken from two or more alternatives, the node is defined as 

an OR node, and when several pathways may be followed this is an AND node. Join nodes 

combine previous activities, and splits determine which activities occur next. Where there 

are alternatives, business rules are defined as  pre-  conditions or  post-  conditions. A summary 

of the alternative dependencies is given in Table 11.4.