Information Systems Methodology

Topics: Software development process, Software engineering, Systems Development Life Cycle Pages: 8 (2444 words) Published: March 25, 2012
Information Systems Methodology

Information Systems Methodology
Critical Failure Factors (CFF)
Rapid Application Development (RAD)
Computer-Aided Software Engineering (CASE)
Effective Project Management
Top management commitment
Information systems (IS)


1.0Introduction to Information System Methodology 2
2.0Introduction to Critical Failure Factors (CFF)2
2.1Discussion 2
2.1.2Inappropriate level of Top management commitment 2-3 2.1.3Poor competence of Project Management3
2.2 Conclusion 3
3.0 Introduction to Rapid Application Development (RAD)3 3.1Discussion3
3.1.2Rapid Application Development (RAD)3
3.1.3Three strengths of Rapid Application Development (RAD) 3-4 3.1.4Three Weaknesses of Rapid Application Development (RAD)4 3.2Conclusion4
4.0Introduction to Computer Aided Software Engineering (CASE)4 4.1Discussion 4
4.1.2Three strengths of Computer Aided Software Engineering (CASE)4 4.1.3Three weaknesses of Computer Aided Software Engineering (CASE)4-5 4.2Conclusion5
Reference 6

1.2 Introduction to Information System Methodology
The development of an information system is a significant and complex activity for almost every organisation, this activities requires, substantial investments of time and money in anticipation of improvements in efficiency or effectiveness of business operations. ( viewed on 12/06/2011) Over the years, there has been some debate about whether the term ‘methodology’, which literally means “the study of methods”, can be used to explain a particular methodological approach to information systems. Jayaratna (1994) emphasises that a methodology provides an “explicit way of structuring” systems development.

1.0 Discussion
An information system can be explained as a process to capture, store, process and output data that can, once in context, provide recipients with an informed view. A methodology can be defined as “an organized collection of concepts, beliefs, values, and normative principles supported by material resources” (Lyytinen, 1987)

Information System Methodology can simply be described as a standard process followed in an organisation to conduct all the steps necessary to analyze, design, implement, and maintain information systems.

1.2 Conclusion
In summary the importance of Information System Methodologies are: IS professionals extensively use it to compete various tasks that involve planning, building and managing plans or systems. IS Methodologies can assist in reducing the risk of project failure, since they allow users to capture the real picture of the problem, develop strategies to solve the problem and to take actions; in other words, they can provide users with a way of thinking and doing and ensuring quality.

2.0 Introduction Critical Failure Factors (CFF)
Information System (IS) failure has been a debatable topic for academic researchers to write about Sauer (1993) defines a system failure as “Development of operation ceases, leaving supporters dissatisfied with the extent to which the system has served their interests” (Sauer, 1993, p. 4). Information systems related projects frequently fail; it has been reported that between 50 per cent-80 per cent of projects fail. For example, projects in Business Process Re-engineering (BPR) have been failing at the rate of 70 per cent (Grant, 2002).

2.1 Discussion
Two Critical Failure Factors of implementing Information Systems in an organisation

2.1.2 Inappropriate level of Top management commitment
Within the ISO 9000 series of standards, “Top Management” is defined as the person or group of people who directs and controls an organisation at the highest level. Within the Quality Management System standard, ISO...
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