The Routledge Companion to Accounting Information Systems

4

Systems planning, design and implementation

Noel Carroll

Introduction

Information systems (IS) are developed for different purposes, largely depending on human and business needs. The variety of systems that may be developed range from, for example, operational level transaction processing systems (TPS), to managerial planning control level using office automation systems (OAS), to strategic level using decision support system (DSS). In addition, enterprise resource planning (ERP) is an important system type that provides integrated applications to manage the business and automate many back-office functions related to technology, services and human resources. The key point is that different IS serve different purposes, often directed at various ...