Content deleted Content added
Folks at 137 (talk | contribs) No edit summary |
Folks at 137 (talk | contribs) No edit summary |
||
Line 2:
booking and ticketing transactions to an airline's reservation system,
billing for utility services.
== History ==
Early commercial systems were installed by large organisations. These could afford to invest the time and capital necessary to purchase hardware, hire specialist staff to develop bespoke software and work through the consequent (and often unexpected) organisational and cultural changes.
At first, individual organisations developed their own software, including data management utilities, themselves. Different products might also have 'one-off' bespoke software. This fragmented approach lead to duplicated effort and mangement information needed manual collation.
Data input required intermediate processing via punched paper tape or card and separate input to computers, usually for overnight processing. Data required validation in batches. Rejected data needed correction and resubmission with consequences for data and account reconciliation.
| |||