1 | <?xml version="1.0" encoding="UTF-8"?> |
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2 | <smellDescriptions |
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3 | xmlns="http://autoquest.informatik.uni-goettingen.de" |
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4 | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" |
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5 | xsi:schemaLocation="http://autoquest.informatik.uni-goettingen.de smellDescriptions.xsd"> |
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6 | |
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7 | <smellDescription smellId="TEXT_FIELD_INPUT_RATIO" briefText="many text inputs"> |
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8 | <textFragment> |
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9 | The ratio of interactions that enter text into text fields is relatively high in comparison |
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10 | with the other user interactions ( |
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11 | </textFragment> |
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12 | <parameterFragment parameterName="textInputRatio" /> |
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13 | <textFragment> |
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14 | %). This should be reduced. As an example, entering data can also be done using check boxes |
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15 | or combo boxes in the case predefined values must be entered. |
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16 | </textFragment> |
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17 | </smellDescription> |
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18 | |
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19 | <smellDescription smellId="TEXT_FIELD_INPUT_REPETITIONS" briefText="many text repetitions"> |
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20 | <textFragment> |
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21 | In |
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22 | </textFragment> |
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23 | <parameterFragment parameterName="textRepetitionRatio" /> |
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24 | <textFragment> |
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25 | % of entering text into text field |
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26 | </textFragment> |
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27 | <parameterFragment parameterName="textField1" /> |
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28 | <textFragment> |
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29 | , the same text was also entered into text field |
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30 | </textFragment> |
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31 | <parameterFragment parameterName="textField2" /> |
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32 | <textFragment> |
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33 | during the same session. Perhaps this can be automated, so that the user does not have to |
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34 | reenter the same text several times into different text fields. |
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35 | </textFragment> |
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36 | </smellDescription> |
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37 | |
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38 | <smellDescription smellId="TEXT_FIELD_NO_LETTER_OR_DIGIT_RATIO" briefText="many special signs"> |
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39 | <parameterFragment parameterName="noLetterOrDigitRatio" /> |
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40 | <textFragment> |
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41 | % of the text entered into text field |
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42 | </textFragment> |
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43 | <parameterFragment parameterName="textField" /> |
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44 | <textFragment> |
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45 | was no letter or digit. This is an indicator that the entered data has to follow a specific |
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46 | syntax. This should be supported by syntax checking, auto completion or even providing the |
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47 | text fields in a way that does not require the entering of special signs as they are already |
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48 | included at the right positions. |
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49 | </textFragment> |
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50 | </smellDescription> |
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51 | |
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52 | <smellDescription smellId="HIGH_EVENT_COVERAGE" briefText="often executed"> |
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53 | <textFragment> |
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54 | The task |
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55 | </textFragment> |
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56 | <parameterFragment parameterName="task" /> |
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57 | <textFragment> |
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58 | covers |
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59 | </textFragment> |
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60 | <parameterFragment parameterName="ratio" /> |
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61 | <textFragment> |
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62 | % of all recorded user actions. Therefore, it should be executed with a high efficiency. |
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63 | You should consider making the task more efficient, by minimizing the number of actions to |
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64 | be executed by users for fulfilling this task. |
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65 | </textFragment> |
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66 | </smellDescription> |
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67 | |
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68 | <smellDescription smellId="INEFFICIENT_ACTIONS" briefText="inefficient actions"> |
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69 | <textFragment> |
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70 | For executing task |
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71 | </textFragment> |
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72 | <parameterFragment parameterName="task" /> |
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73 | <textFragment> |
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74 | , the user has to execute a high number of inefficient actions ( |
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75 | </textFragment> |
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76 | <parameterFragment parameterName="ratio" /> |
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77 | <textFragment> |
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78 | % in average). Such actions are, e.g., scrolls. The number of inefficient actions should |
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79 | be as minimal as possible to increase the users efficiency in executing a task. Please |
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80 | check the task structure for occurrences of the following event tasks and consider to prevent |
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81 | them: scrolling (usually prevented by matching the size of a view to the available screen |
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82 | space). |
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83 | </textFragment> |
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84 | </smellDescription> |
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85 | |
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86 | <smellDescription smellId="COOCCURENCE_SUCCEED" briefText="usual cooccurrence"> |
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87 | <textFragment> |
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88 | In |
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89 | </textFragment> |
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90 | <parameterFragment parameterName="ratio" /> |
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91 | <textFragment> |
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92 | % of all occurrences, the task |
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93 | </textFragment> |
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94 | <parameterFragment parameterName="task1" /> |
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95 | <textFragment> |
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96 | is succeeded by |
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97 | </textFragment> |
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98 | <parameterFragment parameterName="task2" /> |
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99 | <textFragment> |
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100 | . This shows, that both tasks are likely used in combination. Please consider to support the |
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101 | execution of both tasks in one user action, e.g., by providing an appropriate button, to |
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102 | reduce the number of actions to be performed by the user. |
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103 | </textFragment> |
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104 | </smellDescription> |
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105 | |
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106 | <smellDescription smellId="COOCCURENCE_PRECED" briefText="usual cooccurrence"> |
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107 | <textFragment> |
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108 | In |
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109 | </textFragment> |
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110 | <parameterFragment parameterName="ratio" /> |
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111 | <textFragment> |
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112 | % of all occurrences, the task |
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113 | </textFragment> |
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114 | <parameterFragment parameterName="task2" /> |
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115 | <textFragment> |
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116 | is preceded by |
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117 | </textFragment> |
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118 | <parameterFragment parameterName="task1" /> |
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119 | <textFragment> |
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120 | . This shows, that both tasks are likely used in combination. Please consider to support the |
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121 | execution of both tasks in one user action, e.g., by providing an appropriate button, to |
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122 | reduce the number of actions to be performed by the user. |
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123 | </textFragment> |
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124 | </smellDescription> |
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125 | |
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126 | <smellDescription smellId="HIGH_TARGET_DISTANCE" briefText="long way to go"> |
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127 | <textFragment> |
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128 | For executing the task |
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129 | </textFragment> |
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130 | <parameterFragment parameterName="task" /> |
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131 | <textFragment> |
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132 | , the user utilizes |
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133 | </textFragment> |
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134 | <parameterFragment parameterName="noOfGUIElements" /> |
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135 | <textFragment> |
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136 | GUI elements on average. As these GUI elements have a high distance to each other ( |
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137 | </textFragment> |
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138 | <parameterFragment parameterName="distance" /> |
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139 | <textFragment> |
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140 | on average ), they should be more colocated to ease the execution of the task for the user. |
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141 | </textFragment> |
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142 | </smellDescription> |
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143 | |
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144 | <smellDescription smellId="MISSING_FEEDBACK" briefText="missing feedback"> |
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145 | <textFragment> |
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146 | A click on the button |
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147 | </textFragment> |
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148 | <parameterFragment parameterName="button" /> |
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149 | <textFragment> |
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150 | seems to be missing user feedback. In |
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151 | </textFragment> |
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152 | <parameterFragment parameterName="multipleClickCount" /> |
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153 | <textFragment> |
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154 | of |
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155 | </textFragment> |
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156 | <parameterFragment parameterName="allClickCount" /> |
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157 | <textFragment> |
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158 | uses, the button was clicked several times. The average waiting time between two subsequent |
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159 | clicks is |
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160 | </textFragment> |
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161 | <parameterFragment parameterName="averageWaitingTime" /> |
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162 | <textFragment> |
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163 | seconds. This is typical user behavior if the user does not see progress following his |
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164 | actions. Please consider showing the user some progress after he performed the |
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165 | first click. This is especially important if the operation triggered with the click usually |
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166 | takes longer than one second. This smell was observed based on task |
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167 | </textFragment> |
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168 | <parameterFragment parameterName="task" /> |
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169 | <textFragment> |
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170 | . |
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171 | </textFragment> |
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172 | </smellDescription> |
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173 | |
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174 | <smellDescription smellId="UNUSED_GUI_ELEMENTS" briefText="unused GUI elements"> |
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175 | <parameterFragment parameterName="ratio" /> |
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176 | <textFragment> |
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177 | % of the GUI elements ( |
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178 | </textFragment> |
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179 | <parameterFragment parameterName="noOfUnused" /> |
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180 | <textFragment> |
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181 | of |
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182 | </textFragment> |
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183 | <parameterFragment parameterName="noOfAll" /> |
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184 | <textFragment> |
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185 | ) are not used. This can have several reasons. Either they are not |
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186 | visible to the user or they are not required. If they are important, they may not be |
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187 | recognized by the user. This can be caused by visual design or because they are too hidden. |
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188 | If they are less important, they can either be removed from the GUI or relocated to a less |
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189 | prominent position. The unused GUI elements are: |
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190 | </textFragment> |
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191 | <parameterFragment parameterName="unusedGuiElements" /> |
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192 | </smellDescription> |
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193 | |
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194 | <smellDescription smellId="DATA_ENTRY_METHOD_CHANGE" briefText="data entry method change"> |
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195 | <textFragment> |
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196 | When executing task |
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197 | </textFragment> |
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198 | <parameterFragment parameterName="task" /> |
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199 | <textFragment> |
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200 | , the users have to switch between keyboard and mouse in |
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201 | </textFragment> |
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202 | <parameterFragment parameterName="ratio" /> |
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203 | <textFragment> |
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204 | % on average between two subsequently executed actions. Frequently changing between mouse and |
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205 | keyboard causes users to become slow when utilizing a GUI. Hence, these should be minimized to |
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206 | optimize the users performance. |
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207 | </textFragment> |
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208 | </smellDescription> |
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209 | |
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210 | <smellDescription smellId="GOOD_DEFAULTS" briefText="good defaults"> |
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211 | <textFragment> |
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212 | When using GUI element |
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213 | </textFragment> |
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214 | <parameterFragment parameterName="guiElement" /> |
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215 | <textFragment> |
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216 | in view |
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217 | </textFragment> |
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218 | <parameterFragment parameterName="view" /> |
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219 | <textFragment> |
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220 | , the values selected by the users are not equally distributed. Hence, it may be useful to |
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221 | have a good default value. The users entered the following values with their respective |
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222 | frequency in brackets most often (only the five most important entries listed): |
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223 | </textFragment> |
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224 | <parameterFragment parameterName="selectedValues" /> |
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225 | </smellDescription> |
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226 | |
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227 | <smellDescription smellId="CHECK_BOX_SINGLE_SELECTION" briefText="check box single selection"> |
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228 | <textFragment> |
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229 | Found a group of check boxes of which only one is usually selected. In this case, radio |
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230 | buttons should be used instead, if the alternatives are mutually exclusive. The check boxes |
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231 | belonging to the group are: |
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232 | </textFragment> |
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233 | <parameterFragment parameterName="radioButtons" /> |
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234 | </smellDescription> |
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235 | |
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236 | <smellDescription smellId="COMMON_TASK_RATE" briefText="common task rate"> |
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237 | <textFragment> |
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238 | The user sessions show only a few commonalities. On average, ten subsequently executed |
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239 | actions need to be described by |
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240 | </textFragment> |
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241 | <parameterFragment parameterName="ratio" /> |
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242 | <textFragment> |
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243 | different determined tasks. In the worst case, each action is its own task. In the best case, |
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244 | all actions are described by the same tasks. This indicates, that the users act relatively |
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245 | different as otherwise, all their actions would be described by only a few tasks. Hence, |
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246 | users seem to be missing guidance, as otherwise, they would behave similar resulting in less |
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247 | generated task which still cover many recorded actions. |
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248 | </textFragment> |
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249 | </smellDescription> |
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250 | |
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251 | <smellDescription smellId="MISLEADING_CLICK_CUE" briefText="misleading cue to click"> |
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252 | <textFragment> |
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253 | In the |
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254 | </textFragment> |
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255 | <parameterFragment parameterName="noOfViewDisplays" /> |
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256 | <textFragment> |
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257 | times the view |
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258 | </textFragment> |
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259 | <parameterFragment parameterName="view" /> |
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260 | <textFragment> |
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261 | has been displayed, the element |
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262 | </textFragment> |
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263 | <parameterFragment parameterName="element" /> |
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264 | <textFragment> |
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265 | has been clicked |
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266 | </textFragment> |
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267 | <parameterFragment parameterName="uselessClicks" /> |
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268 | <textFragment> |
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269 | times although it may not be clickable (it is no, e.g., button). If the element is not |
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270 | clickable, then the element seems to give a cue that it was clickable although it is not. |
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271 | Hence, it should be considered to change the appearance of the element to prevent it from |
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272 | looking clickable. |
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273 | </textFragment> |
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274 | </smellDescription> |
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275 | |
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276 | <smellDescription smellId="MOST_OFTEN_DONE_FIRST" briefText="most often done first in view"> |
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277 | <textFragment> |
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278 | When opening the view |
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279 | </textFragment> |
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280 | <parameterFragment parameterName="view" /> |
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281 | <textFragment> |
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282 | , users most often position the cursor into the text field |
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283 | </textFragment> |
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284 | <parameterFragment parameterName="textfield" /> |
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285 | <textFragment> |
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286 | (in |
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287 | </textFragment> |
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288 | <parameterFragment parameterName="ratio" /> |
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289 | <textFragment> |
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290 | % of cases when the view is opened). This should be automated to remove one action required |
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291 | for users. |
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292 | </textFragment> |
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293 | </smellDescription> |
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294 | </smellDescriptions> |
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