## 5 System Testing and Evaluation
### Evaluation: Qualitative Evaluation Instrument
#### 5.2.3 Statistical Analysis of the Result
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**No.**} & **Completely** & \multirow{2}{*}{**Agree**} & \multirow{2}{*}{**Neutral**} & \multirow{2}{*}{**Disagree**} & **Completely** & \multirow{2}{*}{**Mean**} & \multirow{2}{*}{**Max**} & \multirow{2}{*}{**Min**} \\  & **Agree** & & & & & & \\ \hline
1. & 82\% & 18\% & - & - & - & 4.82 & 5.00 & 4.00 \\ \hline
2- & 36\% & 59\% & 5\% & - & - & 4.32 & 5.00 & 3.00 \\ \hline
3- & 77\% & 18\% & - & 5\% & - & 4.55 & 5.00 & 3.00 \\ \hline
4- & 32\% & 50\% & 14\% & 4\% & - & 4.68 & 5.00 & 2.00 \\ \hline \hline \end{tabular}
\end{table} 
Table 9: The results of the Efficiency parameter. * Effectiveness  
Another significant parameter was Effectiveness, which was considered in evaluating the system using seven items. The outcomes in Table 11 outline that most of the responses completely agreed or agreed that the system assisted in the temperature monitoring of the blood bags. This led the participants to decide that the system could store the blood bags more effectively. Furthermore, the users expressed a clear consensus for the second item, which indicated that the system helped control critical crises. However, a small number of responses remained neutral. In addition, most responses agreed that the digital information was sufficient, and the system provided accurate and integrated statistics. Lastly, a large group of responses indicated the participants' agreement that the design contributed to the success of the institution's works. Moreover, incorporating social media applications would improve the system's performance. Table 12 indicates that, overall, the proposed system offered a compelling performance and functionality in achieving the desired goal based on the participants' opinions regarding the third parameter (Effectiveness). Figure 15 depicts the mean distribution of the three factors. Furthermore, it provides an overview of the mean of each measured item in Figure 16, implying that end users generally responded positively to the proposed system in relation to the improvement of blood bank administration and services. A comparison study with the current traditional system was conducted to prove that the proposed system for managing the blood bank was efficient using a questionnaire analysis. The result determined that the proposed system was superior because it saved time, avoided human errors, and provided a set of functionalities. The comparison is shown in Table 13. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Completely** & **Agree** & **Neutral** & **Disagree** &
\begin{tabular}{c} **Completely** \\ **Disagree** \\ \end{tabular} & **Mean** & **Max** & **Min** \\ \hline
59\% & 41\% & - & - & - & 4.09 & 5.00 & 2.00 \\ \hline
36\% & 46\% & 18\% & - & - & 4.59 & 5.00 & 4.00 \\ \hline
54\% & 41\% & 5\% & - & - & 4.18 & 5.00 & 3.00 \\ \hline
68\% & 23\% & 9\% & - & - & 4.50 & 5.00 & 3.00 \\ \hline
64\% & 32\% & - & - & 4\% & 4.59 & 5.00 & 3.00 \\ \hline
46\% & 50\% & 4\% & - & - & 4.50 & 5.00 & 1.00 \\ \hline
45\% & 50\% & 5\% & - & - & 4.41 & 5.00 & 3.00 \\ \hline \hline \end{tabular}
\end{table} 
Table 11: The results of the Effectiveness parameter. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Mean** & **Std. Deviation** & **Theoretical Mean** & **Calculated T** & **Tabled T** \\ \hline
30.8636 & 2.41613 & 21 & 19.148 & 2.08 \\ \hline \hline \end{tabular}
\end{table} 
Table 12: The complete statistical analysis of the Effectiveness parameter. Figure 16: Overview of answers related to measured items. Figure 15: Mean values per parameter for measuring usability on a Likert scale.