Paste yoThe model consists of six dimensions: system quality, information quality, use, user satisfaction, individual impact, and organizational impact cite {delone1992information}. There are many advantages with using this model, first of all the model can be used to measure the success of a whole IS but it can also be used to measure the success of one single subsystem cite{delone2004measuring}.
It has been suggested Lin, (2008) that service quality and IS qualities have a positive affect IS from the point of view of reuse and behavioural intention. cite {petter2009meta} presents the model as a whole not as single dimension because of the complex nature of a system, this is where qualitative research comes into play. cite{delone1992information} attempted to comprise too much in the one model that is why cite{seddon1997respecification} describes the model as confusing. One reason given is that once you begin to expand the IS that here is so many different measures of success and cite{seddon1997respecification} paper points out some difficulties of the D&M which are described in cite{armstrong2005validation}paper also. The paper goes on to explain that different stakeholders have different needs and benefits from the IS'''.
In cite{seddon1997respecification} talks about managers needs of a IS can be different than a regular user. A manager may use the IS for completed task and would have a better all-round knowledge of the IS leading to positive outcome on the IS. Also Res (1995) describes from the point of view of business relation with the IS when the manager should lead to 'successful operational productivity should build strategic success'. This can highlight the complex nature of an IS and how different users interact with the system. It is important to recognize that individuals may have many different roles or their roles on the IS may also change over time cite{delone2004measuring} and this can be problematic for the reach as roles are always changing. cite{cao2005b2c}.Empirically tested the updated DeLone and McLean Model in knowledge management systems and found partial support for the model. The relationship between system quality and perceived benefits was not supported and also incite{iivari2005empirical} test of the D&M model came up incomplete because organizational impact was not included. The managers elevation of the IS was elevated on impact on system not on the organizational impact. cite{seddon1997respecification} together with a different group of researchers did research on the measuring of organisational IS effectiveness with the focus on perspectives of senior management cite{seddon1997respecification}. In the result they modified the construct, use, because they 'conjectured that the underlying success construct that researchers have been trying to tap is usefulness, not use' cite{seddon1996partial} argued that use is a good measure of an IS but that usefulness is a better measure. On the other hand cite{seddon1996partial} study supported D&M using user satisfaction as an important factor to the success of an IS.
The multidimensional and interdependent nature of IS success requires careful attention and work to be able to link the IS as a success. It is very important to study the interrelationships among the different constructs within the model can lead to a clearer picture of the success and effectives of the IS cite {delone2003delone} . Previous research by cite{seddon1997respecification,} has shown that where the constructs were tested that they would have a significant impact to the overall model. cite {delone2003delone} indicates by pointing out the flow of information through an organisation from one point to another point can give a clear picture in measuring the success of the IS. By using D&M you can argue that IS systems need to be looked at in many different dimensions not as one single entity and this model can provide a good gauge to judge the overall success of an IS.
Other empirical studies explicitly tested the associations between the different constructs and tested the model on different levels investigating multiple success dimensions and how they were interconnected. Each of the constructs was tested and these are empirical results that are summarised below.
subsection{system Quality}
According tocite {delone2003delone}, one of the most studied dimensions of IS success is system quality.This refers to the information that is been processed in the system a good example of this is how well the hardware and software are working with each other.Throughout the literature any key words were associated to System quality flexibility response time ease of use and ease of learning. The system quality can be mainly in the forms of reports which can in terms of ease of use functionality, reliability, flexibility, data quality.
subsection{User satisfaction }
According to cite{delone2003delone,},user satisfaction is one of the most important dependent variables used in measuring the success of the system due to the non-volitional status of the majority of the systems.
literature shows that user satisfaction is the one of the most widely used success measures of information system success cite {delone2003delone}. This is one of the main factors user believe that an system is success once they are satisfied.User satisfaction has can be defined feel and attitudes of different situations.The end result of the system and the user feels that the end result is of a high standard and was easy to achieve. This is one of the easier constructs to measure as the end success of any information system. User find this to be the end goal of a system and can be measured as a result.
subsection{Information quality }
According to cite{delone2003delone,} information quality refers to the quality of the information the system produces.
According to cite {petter2009meta} the main components of an IS are accuracy, completeness, relevancy, timeliness, and format of the information. Information quality refers to the quality of the information
which the system produces. It is considered an important factor when the system being evaluated involves the production of
information to be used in decision making processescite{seddon1997respecification}
when we look into this we see that Accuracy can be a very important component as it can judge how satisfied the users are the accuracy of the information.
Timeliness reflects how updated users perceive the information provided by the system, if it is relevant our outdated cite{iivari2005empirical}
subsection{system use}
cite{delone2003delone} state that system use has been proposed as a success measure in many IS conceptual models and empirical studies and they also go on to explain that it is one of the most widely used measures of an IS because of its face validity and the development of multiple measurement tools that have been thoughtfully validated.
subsection{Service quality}
The quality of support that user receives on navigation around the system. The quality of the support that system users receive from the IS department and IT support personnelcite {petter2009meta}. one of the most common measures of service quality is SERVQUAL instrument; this inclules dimensions such as assurance reliable and empathy.however SERVQUAL is limited to only measuring service quailty cite {pitt el al …1995meta} Personal experience and training have produced results for service quality and on individual level
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