The Delone and Mclean Model,

The Delone and Mclean Model,

• In order to provide a general and comprehensive definition of IS success that covers different perspectives of evaluating information systems, DeLone and McLean reviewed the existing definitions of IS success and their corresponding measures, and classified them into six major categories.

• Thus, they created a multidimensional measuring model with interdependencies between the different success categories (DeLone & McLean 1992).

Information Systems Success Model (DeLone & McLean 1992)

• System Quality refers to the measures of the processing system itself

• whereas Information Quality measures its output.

• Use measures recipient consumption of the output information.

• User Satisfaction is the response to such use. • Individual Impact measures the effect of use on

the behavior of the recipient. • Organizational Impact is the effect on

organizational performance.

• Motivated by DeLone and McLean’s call for further development and validation of their model, many researchers have attempted to extend or respecify the original model.

• Ten years after the publication of their first model and based on the evaluation of the many contributions to it, DeLone and McLean proposed an updated IS success model (DeLone & McLean 2002, 2003).

• The updated model consists of six interrelated dimensions of IS success: information, system and service quality, (intention to) use, user satisfaction, and net benefits.

• The arrows demonstrate proposed associations between the success dimensions.

• The model can be interpreted as follows: A system can be evaluated in terms of information, system, and service quality; these characteristics affect the subsequent use or intention to use and user satisfaction. As a result of using the system, certain benefits will be achieved. The net benefits will (positively or negatively) influence user satisfaction and the further use of the information system

Updated Information Systems Success Model (DeLone & McLean 2002, 2003)

The Seddon Model

• The Seddon Model is divided into essentially two parts. • The first part is a “Partial behavioral model of IS Use”. This part

recognizes that expectations for IS Use play a large part in information systems success. These expectations influence how people look at information systems success and the measures they use to determine that success.

• The second part is the “IS Success Model”. This part is very similar

to the components of the DMM and describes three general categories of measures of IS success (measures of information and systems quality, perceptual measures of usefulness and satisfaction, and measures of net benefits to individuals, organizations and society).

The Extended Seddon Model• Further Seddon (1997) identifies stakeholders in his discussion of SM. • Our extension to SM requires distinct recognition of two further

stakeholders - groups and organization’s external environment.• We define groups as collections of individuals that may be purposely-

constituted (like a team) or• may be naturally existing (like people of a department or a particular

organization). Seddon (1997)• does acknowledge groups but includes groups in the organization item.

Further, we define• organization’s external environment as consisting of all parties

involved in the exchange of• information between the organization and agents external to the

organization