About Accounting information system?

Conventional accounting date are historical, but decision makers need past, present, and future data.What the scope of the AIS with reference to the t

Conventional accounting date are historical, but decision makers need past, present, and future data.What the scope of the AIS with reference to the time period of accounting information.
External and internal users of accounting information have different information needs. Sometimes it is difficult to meet all of them. How would you establish priorities in those cases where all needs cannot be met ?

or:Conventional accounting date are historical, but decision makers need past, present, and future data.What the scope of the AIS with reference to the time period of accounting information.External and internal users of accounting information have different information needs. Sometimes it is difficult to meet all of them. How would you establish priorities in those cases where all needs cannot be met ?

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