SIMSCRIPT II.5 Programming Language

SIMSCRIPT II.5 Programming Language
3. read N.COUNTRY and N.SHIP
create each COUNTRY and SHIP
list attributes of each COUNTRY
4. list attributes of each SAILOR in CREW(QUEEN.MARY)
5. list attributes of SHIP called 4
4.14 Some Sample Programs
The programs in this paragraph illustrate the concepts and statements described above. You can
follow them closely and identify the features used in each one. As a useful exercise you can reformulate
and reprogram the examples using different concepts and statements.
4.14.1 An Inventory Control Example
This simple model processes two transaction types — orders for goods and reception of new stock.
The data associated with each are transaction type, an item code number, and a quantity. As this
business deals with a fixed range of items, these may be modelled using permanent entities. Note
the extensive reliance on implicit subscripting throughout.
Program 4-1.
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preamble
normally mode is integer
permanent entities
every ITEM has an ITEM.NAME
a REORDER.POINT,
a CONTROL.LEVEL,
a STOCK.LEVEL,
a DUE.IN,
a DUE.OUT
define ITEM.NAME as a text variable
end
main
define TRANSACTION as a text variable
read N.ITEM
create each ITEM
for each ITEM
read ITEM.NAME(ITEM), REORDER.POINT(ITEM),
CONTROL.LEVEL(ITEM), STOCK.LEVEL(ITEM),
DUE.IN(ITEM), DUE.OUT(ITEM)
until data is ended
do
read TRANSACTION, ITEM, QUANTITY
if TRANSACTION = "ORDER"
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