Description
This week’s Key Concept Overview changes direction and looks at management
accounting information. This is needed for internal decision making within an
organisation and, as such, is based upon a whole new set of characteristics and
underlying theories. The aim of the Week 4 Key Concept Overview is to introduce you
to these characteristics and theories.- Management and accounting information systems
Traditionally, accounting information systems focussed solely on transaction processing
because the primary concern was financial data and the reporting of accounting
transactions. This rather narrow focus resulted in the creation of multiple systems,
collectively known as the management information system, which gathered other data
important to the organisation, but which did not appear in the accounting information
system. As you might expect, the existence of multiple systems resulted in considerable
inefficiency, data redundancy and data discrepancies from one system to another.
Enterprise resource planning (ERP) systems are intended to eliminate the problems of
multiple systems. An ERP system integrates all of a company’s operations into a single
information system that includes both financial and non-financial data. Data can thus be
entered once and subsequently retrieved by any division of the entity requiring that
data. For example, customer information can initially be entered by the sales force and
then later used and updated by shipping and accounting (upon the occurrence of a
sale).
Cost structures and cost–volume relationships
The first area that we need to consider in more detail is cost structures. At a simple
level, costs can be regarded as either fixed or variable. Fixed costs are defined as those
that do not vary as a result of the level of cost-driver activities undertaken, while variable
costs change in direct proportion to this.