27.06.2013 Views

Information and Knowledge Management using ArcGIS ModelBuilder

Information and Knowledge Management using ArcGIS ModelBuilder

Information and Knowledge Management using ArcGIS ModelBuilder

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Mohammad Abooyee Ardakan, Babak Sohrabi <strong>and</strong> Vahid Saadat<br />

conducted a full-scale test of the measurement properties <strong>and</strong> of the structural model. All procedures<br />

including item development, instrument pretesting <strong>and</strong> refinement, assessment of measurement<br />

properties <strong>and</strong> model testing were done <strong>and</strong> they have measured IT <strong>Knowledge</strong> dimension by<br />

Technology, Applications, System Development, <strong>Management</strong> <strong>and</strong> Access to <strong>Knowledge</strong> factors <strong>and</strong><br />

also IT Experience dimension by Experience in Projects <strong>and</strong> Experience in IT <strong>Management</strong> factors.<br />

We have used these dimensions <strong>and</strong> sub-dimensions for our questionnaire <strong>and</strong> also customize the<br />

questions. Questions were revised according to preliminary context validity survey, like the previous<br />

part actions done.<br />

Questionnaire with 39 questions prepared for measuring IT Competency of Managers <strong>and</strong> also IT<br />

Projects' Risks Exposure. We designed 3 questions related to performance items: Time, Budget <strong>and</strong><br />

Quality that filled for each project by its end users. We designed questions in 5-point Likert scale by<br />

Google Doc <strong>and</strong> used its online benefits to obliged respondents to fill all questions; because of this we<br />

hadn't any excluded questions. Questionnaires filled for 100 projects by 100 Managers <strong>and</strong> 745 users<br />

that we calculated the average of each questions filled by users for each project (For instance, project<br />

A had 39 questions filled by its Manager <strong>and</strong> 3 questions of its performance that filled by 8 users, we<br />

calculate the average response of these 8 users for each performance questions). Tehran<br />

Municipality supported us in all research processes. We investigated their projects <strong>and</strong> chose 120<br />

projects among them <strong>and</strong> focused on them. We identified their projects <strong>and</strong> negotiate with them,<br />

finally 100 projects remained for us that their managers filled the questionnaires <strong>and</strong> sent.<br />

4. Data<br />

In below, there are two tables; tables 1 shows reliability estimates of questions <strong>and</strong> table 2 shows<br />

demographics of IT Managers who participate in this research.<br />

Table 1: Reliability estimates<br />

Dimension Sub-dimensions Number of Alpha<br />

Questions<br />

IT Competency <strong>Knowledge</strong> of Technology 3 0.89<br />

<strong>Knowledge</strong> of Applications 4 0.87<br />

<strong>Knowledge</strong> of System Development 3 0.83<br />

<strong>Knowledge</strong> of <strong>Management</strong> of IT 4 0.91<br />

Access to IT <strong>Knowledge</strong> 2 0.79<br />

Experience in IT Projects 3 0.89<br />

Experience in <strong>Management</strong> of IT 3 0.86<br />

Risk Exposure Technology Newness 3 0.90<br />

Application Size, 3 0.81<br />

Lack of Expertise 4 0.91<br />

Application Complexity 3 0.83<br />

Table 2: Demographics<br />

Organizational Environment 4 0.88<br />

Division Group Category Count Percent<br />

Gender Male 92 92<br />

Female 8 8<br />

Degree Diploma 7 7<br />

Bachelor 49 49<br />

Master 38 38<br />

Ph.D. 6 6<br />

IT <strong>Management</strong> Experience Less than 3 years 11 11<br />

Between 3 to 5 years 23 23<br />

Between 5 to 10 years 52 52<br />

More than 10 years 14 14<br />

4.1 Model testing<br />

The model was tested <strong>using</strong> LISREL 8.53 (Jِreskog <strong>and</strong> Sِrbom 2002) with maximum-likelihood<br />

estimation procedures <strong>and</strong> the covariance matrix. The model presented in Figure 5 suggests three<br />

levels of factors, or latent variables. For IT Competency, the first-order factors are the five dimensions<br />

of IT knowledge (Technology, Applications, System Development, <strong>Management</strong> of IT, <strong>and</strong> Access to<br />

IT <strong>Knowledge</strong>) <strong>and</strong> the two dimensions of IT Experience (IT Projects, <strong>Management</strong> of IT). These<br />

factors at the first order measure two second order factors: IT <strong>Knowledge</strong> <strong>and</strong> IT Experience. IT<br />

48

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!