To match sound-image editor

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= Class diagrams =
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= Manual =
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== Class diagrams ==
The following image shows the summarized class diagram of the manual editor of To match sound-image exercises that is part of [[Tareas]].
The following image shows the summarized class diagram of the manual editor of To match sound-image exercises that is part of [[Tareas]].
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[[Archivo:Tareas_diagrama_clases_emparejar_manual_es.png|1000px|Diagrama de clases del editor Emparejar Sonido-imagen manual.]]
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[[File:Tareas_emparejar_manual_class_diagram_en.png|1000px|To match sound-image pairs manual editor class diagram.]]
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In the diagram above we can see that the information of the exercise that is being edited will be stored in the "CurrentEmparejarExercise" class, that has all static fields. This class also stores the information of all image-sound pairs that the exercise has and each of them is represented by an instance of the "PairInfo" class.
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In the diagram above we can see that the information of the exercise that is being edited will be stored in the "CurrentEmparejarExercise" class, which has all static fields. This class also stores the information of all image-sound pairs of the exercise and each of them is represented by an instance of the "PairInfo" class.
The main panel is an object of class "EmparejarMainPanel" which contains three subpanels: "Image-sound pairs", "Images" and "Sounds".
The main panel is an object of class "EmparejarMainPanel" which contains three subpanels: "Image-sound pairs", "Images" and "Sounds".
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The '''image-sound pairs''' panel ("leftPanel") is a "PreviewPanel" object and contains a toolbar and the panel that contains all exercise pairs ("PairsPanel"). The exercise configuration panel is an "ExerciseConfigPanel" object and it is instantiated each time the user clicks on the corresponding button located in the '''image-sound pairs''' panel toolbar.
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The '''image-sound pairs''' panel ("leftPanel") is a "PreviewPanel" object which contains a toolbar and the panel that contains all the exercise pairs ("PairsPanel"). The exercise configuration panel is an "ExerciseConfigPanel" object and it is instantiated each time the user clicks on the corresponding button located in the '''image-sound pairs''' panel toolbar.
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An object of type "MultimediaResourcesFilterPanel" ("rightPanel") creates two instances of the class "MultimediaFilterPanel". Each of these instances represents a panel that filters all the available multimedia resources by type (images, sounds, videos...) and in this case are "Images" and "Sounds" panels.
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An object of type "MultimediaResourcesFilterPanel" ("rightPanel") creates two instances of the class "MultimediaFilterPanel". Each of these instances represents a panel that filters all the available multimedia resources by type (images, sounds, videos...). In this case are "Images" and "Sounds" panels.
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= Use cases =
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== Use cases ==
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[[Archivo:Tareas_casos_uso_emparejar_manual_es.png|800px|Diagrama de casos de uso del editor manual de ejercicios Emparejar sonido-imagen.]]
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[[File:Tareas_emparejar_manual_use_cases_en.png|800px|Use cases diagram: To match sound-image pairs.]]
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Next there is a textual description of the use cases of the "To match sound-image pairs" exercises manual editor.  
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Next, there is a textual description of the use cases of the "To match sound-image pairs" exercises manual editor.  
'''1. Use case: '''Initial configuration.  
'''1. Use case: '''Initial configuration.  
       '''Main actor: '''User.  
       '''Main actor: '''User.  
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       '''Preconditions: '''It has just started this exercises editor to create a new exercise.
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       '''Preconditions: '''This editor has just started to create a new exercise.
       '''Main success scenario: '''
       '''Main success scenario: '''
               1. The tool shows the user the initial configuration window.
               1. The tool shows the user the initial configuration window.
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               2. The user selects the exercise language, the number of empty pairs to be added to it and presses the "OK button". The tool shows this editor with a new exercise with the initial configuration.
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               2. The user selects the exercise language and the number of empty pairs that will be added to it and presses the "OK" button.
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              3. The tool shows this editor which contains the new exercise with the initial configuration.
'''2. Use case: '''Add a new pair.  
'''2. Use case: '''Add a new pair.  
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'''3. Use case: '''Delete the selected pair.  
'''3. Use case: '''Delete the selected pair.  
       '''Main actor: '''User.  
       '''Main actor: '''User.  
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       '''Preconditions: '''This editor must be running and an image-sound pair has to be selected.
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       '''Preconditions: '''This editor must be running and an image-sound pair has been selected.
       '''Main success scenario: '''
       '''Main success scenario: '''
               1. The user presses the "Delete" button located in the "Image-sound pairs" panel toolbar.
               1. The user presses the "Delete" button located in the "Image-sound pairs" panel toolbar.
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               2. the tool removes the selected pair in the image-sound pairs list.
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               2. The tool removes the selected pair from the image-sound pairs list.
'''4. Use case: '''The selected pair goes up.
'''4. Use case: '''The selected pair goes up.
       '''Main actor: '''User.  
       '''Main actor: '''User.  
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       '''Preconditions: '''This editor must be running, an image-sound pair has to be selected and must have at least one pair placed above.
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       '''Preconditions: '''This editor must be running, an image-sound pair has been selected and there must be at least one pair placed above.
       '''Main success scenario: '''  
       '''Main success scenario: '''  
               1. The user presses the "Up" button located in the "Image-sound pairs" panel toolbar.
               1. The user presses the "Up" button located in the "Image-sound pairs" panel toolbar.
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               2. The tool raises one position the selected pair in the image-sound pairs list.  
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               2. The tool raises the selected pair one position in the image-sound pairs list.  
'''5. Use case: '''The selected pair goes down.  
'''5. Use case: '''The selected pair goes down.  
       '''Main actor: '''User.  
       '''Main actor: '''User.  
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       '''Preconditions: '''This editor must be running, an image-sound pair has to be selected and must have at least one pair placed below.
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       '''Preconditions: '''This editor must be running, an image-sound pair has been selected and there must be at least one pair placed below.
       '''Main success scenario: '''  
       '''Main success scenario: '''  
               1. The user presses the "Down" button located in the "Image-sound pairs" panel toolbar.
               1. The user presses the "Down" button located in the "Image-sound pairs" panel toolbar.
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               2. The tool lowers one position the selected pair in the image-sound pairs list.   
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               2. The tool lowers the selected pair one position in the image-sound pairs list.   
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'''6. Use case: '''Change the correct/incorrect state
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'''6. Use case: '''Change the correct/incorrect state.
       '''Main actor: '''User.  
       '''Main actor: '''User.  
       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Main success scenario: '''  
       '''Main success scenario: '''  
               1. The user clicks in the "Correct" column of a pair.
               1. The user clicks in the "Correct" column of a pair.
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               2. The tool changes the state of the pair from correct to incorrect or viceversa.
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               2. The tool changes the state of that pair from correct to incorrect or viceversa.
'''7. Use case: '''Associate a sound with a pair.  
'''7. Use case: '''Associate a sound with a pair.  
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       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Main success scenario: '''
       '''Main success scenario: '''
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               1. The user looks for the desired sound in the "Sounds" panel. Once the sound is located, the user clicks on it to select it and, without releasing the button, he drags it and drops it onto the "Sound" column  
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               1. The user looks for the desired sound in the "Sounds" panel. Once the sound is located, the user clicks on it to select it and, without releasing the button, he drags and drops it onto the "Sound" column  
                 of the desired pair located in the image-sound pairs panel.  
                 of the desired pair located in the image-sound pairs panel.  
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               2. The tool associates the sound with this pair.  
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               2. The tool associates the sound with that pair.  
'''8. Use case: '''Remove the sound of a pair.  
'''8. Use case: '''Remove the sound of a pair.  
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       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Main success scenario: '''  
       '''Main success scenario: '''  
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               1. The user clicks with the right button of the mouse over the pair that he wants to remove the associated sound.
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               1. The user clicks with the mouse right button over the pair that he wants to remove its associated sound.
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               2. The tool shows the user a small menu of options.
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               2. The tool shows a small menu of options.
               3. The user selects the "Remove sound" option.  
               3. The user selects the "Remove sound" option.  
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               4. The tool removes the associated sound of the pair.  
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               4. The tool removes the associated sound of that pair.  
'''9. Use case: '''Associate an image with a pair.  
'''9. Use case: '''Associate an image with a pair.  
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       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Main success scenario: '''  
       '''Main success scenario: '''  
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               1. The user looks for the desired image in the "Images" panel. Once the image is located, the user clicks on it to select it and, without releasing the button, he drags it and drops it onto the "Image" column  
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               1. The user looks for the desired image in the "Images" panel. Once the image is located, the user clicks on it to select it and, without releasing the button, he drags and drops it onto the "Image" column  
                 of the desired pair located in the image-sound pairs panel.
                 of the desired pair located in the image-sound pairs panel.
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               2. The tool associates the image with this pair.  
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               2. The tool associates the image with that pair.  
'''10. Use case: '''Remove the image of a pair.  
'''10. Use case: '''Remove the image of a pair.  
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       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Preconditions: '''This editor must be running and the image-sound pairs list can't be empty.
       '''Main success scenario: '''  
       '''Main success scenario: '''  
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               1. The user clicks with the right button of the mouse over the pair that he wants to remove the associated image.
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               1. The user clicks with the mouse right button over the pair that he wants to remove its associated image.
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               2. The tool shows the user a small menu of options.
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               2. The tool shows a small menu of options.
               3. The user selects the "Remove image" option.  
               3. The user selects the "Remove image" option.  
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               4. The tool removes the associated image of the pair.
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               4. The tool removes the associated image of that pair.
'''11. Use case: '''Play a sound of a pair.  
'''11. Use case: '''Play a sound of a pair.  
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       '''Main success scenario: '''
       '''Main success scenario: '''
               1. The user clicks in the "Sound" column of a pair.
               1. The user clicks in the "Sound" column of a pair.
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               2. The tool plays the associated sound of the pair.  
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               2. The tool plays the associated sound of that pair.  
'''12. Use case: '''Get information.  
'''12. Use case: '''Get information.  
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       '''Main success scenario: '''
       '''Main success scenario: '''
               1. The user places the mouse cursor over any component of the editor.
               1. The user places the mouse cursor over any component of the editor.
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               2. The tool shows the popup information about the component.  
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               2. The tool shows the popup information about that component.  
'''13. Use case: '''Edit the exercise name.  
'''13. Use case: '''Edit the exercise name.  
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               1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
               1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
               2. The tool shows the exercise configuration panel.
               2. The tool shows the exercise configuration panel.
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               3. The user checks/unchecks the “Random image order” checkbox and presses the "Ok" button.
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               3. The user checks/unchecks the “Random image order” checkbox and presses the "OK" button.
               4. The tool toggles, from normal to random or viceversa, the order that the pairs will have while playing the exercise.
               4. The tool toggles, from normal to random or viceversa, the order that the pairs will have while playing the exercise.
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               1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
               1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
               2. The tool shows the exercise configuration panel.
               2. The tool shows the exercise configuration panel.
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               3. The user selects the mode (Learning or Evaluation) from the "Mode" field and presses the "Ok" button.
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               3. The user selects the mode (Learning or Evaluation) from the "Mode" field and presses the "OK" button.
               4. the tool sets the mode of the exercise that is being edited.
               4. the tool sets the mode of the exercise that is being edited.
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'''20. Caso de uso: '''Asignar un sonido general.  
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'''20. Use case: '''Assign a general sound.  
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       '''Actor principal: '''Usuario.  
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       '''Main actor: '''User.  
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       '''Precondiciones: '''Este editor debe estar en ejecución.
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       '''Preconditions: '''This editor must be running.
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       '''Escenario de éxito principal: '''
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       '''Main success scenario: '''
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               1. El usuario pulsa el botón “Configuración del ejercicio” situado en la barra de herramientas del “Panel Pares imagen-sonido”.
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               1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
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               2. La herramienta muestra el panel de configuración del ejercicio.
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               2. The tool shows the exercise configuration panel.
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               3. El usuario busca el sonido deseado en la parte inferior del panel “Sonidos generales del ejercicio”.   
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               3. The user looks for the desired sound in the bottom of the "General sounds of the exercise" panel.   
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               4. Una vez localizado el sonido, el usuario pulsa sobre él para seleccionarlo y, sin soltarlo, lo arrastrará y soltará sobre uno de los sonidos generales (Enunciado, Correcto, Incorrecto y Despedida)  
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               4. Once the sound is located, the user clicks on it to select it and, without releasing the button, he drags and drops it onto one of the general sounds (Sentence, correct, incorrect or farewell).  
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                situados encima de este panel para asignárselo.  
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               5. The tool associates the selected sound with that general sound.
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               5. La herramienta asocia el sonido seleccionado al sonido general sobre el que fue soltado.  
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'''21. Caso de uso: '''Quitar un sonido general.  
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'''21. Use case: '''Remove a general sound.  
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       '''Actor principal: '''Usuario.  
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       '''Main actor: '''User.  
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       '''Precondiciones: '''Este editor debe estar en ejecución.
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       '''Preconditions: '''This editor must be running.
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       '''Escenario de éxito principal: '''
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       '''Main success scenario: '''
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               1. El usuario pulsa el botón “Configuración del ejercicio” situado en la barra de herramientas del “Panel Pares imagen-sonido”.
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               1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
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               2. La herramienta muestra el panel de configuración del ejercicio.
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               2. The tool shows the exercise configuration panel.
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               3. El usuario pulsa el botón "Quitar sonido" (representado por una cruz roja) que estará situado a la derecha de sonido general al que se le quiere quitar el sonido.  
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               3. The user presses the "Remove sound" button (represented by a red cross) that is located to the right of the general sound that he wants to remove.  
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               4. La herramienta quita el sonido general del ejercicio.
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               4. The tool removes that general sound from the exercise.
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'''22. Caso de uso: '''Reproducir un sonido general.  
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'''22. Use case: '''Play a general sound.  
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       '''Actor principal: '''Usuario.  
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       '''Main actor: '''User.  
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       '''Precondiciones: '''Este editor debe estar en ejecución y el sonido general debe haber sido asignado previamente.
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       '''Preconditions: '''This editor must be running and the general sound must have been previously assigned.
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       '''Escenario de éxito principal: '''
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       '''Main success scenario: '''
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               1. El usuario pulsa el botón “Configuración del ejercicio” situado en la barra de herramientas del “Panel Pares imagen-sonido”.
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               1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
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               2. La herramienta muestra el panel de configuración del ejercicio.
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               2. The tool shows the exercise configuration panel.
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               3. El usuario pulsa sobre el sonido general a reproducir (representado por la imagen de un altavoz) .  
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               3. The user presses on the general sound that he wants to play (represented by a speaker) .  
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               4. La herramienta reproduce el sonido general.
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               4. The tool plays that general sound.
[[Category: Tareas]]
[[Category: Tareas]]

Current revision as of 16:54, 10 November 2011

Manual

Class diagrams

The following image shows the summarized class diagram of the manual editor of To match sound-image exercises that is part of Tareas.


To match sound-image pairs manual editor class diagram.


In the diagram above we can see that the information of the exercise that is being edited will be stored in the "CurrentEmparejarExercise" class, which has all static fields. This class also stores the information of all image-sound pairs of the exercise and each of them is represented by an instance of the "PairInfo" class.

The main panel is an object of class "EmparejarMainPanel" which contains three subpanels: "Image-sound pairs", "Images" and "Sounds".

The image-sound pairs panel ("leftPanel") is a "PreviewPanel" object which contains a toolbar and the panel that contains all the exercise pairs ("PairsPanel"). The exercise configuration panel is an "ExerciseConfigPanel" object and it is instantiated each time the user clicks on the corresponding button located in the image-sound pairs panel toolbar.

An object of type "MultimediaResourcesFilterPanel" ("rightPanel") creates two instances of the class "MultimediaFilterPanel". Each of these instances represents a panel that filters all the available multimedia resources by type (images, sounds, videos...). In this case are "Images" and "Sounds" panels.


Use cases

Use cases diagram: To match sound-image pairs.


Next, there is a textual description of the use cases of the "To match sound-image pairs" exercises manual editor.

1. Use case: Initial configuration. 

     Main actor: User. 
     Preconditions: This editor has just started to create a new exercise.
     Main success scenario: 
             1. The tool shows the user the initial configuration window.
             2. The user selects the exercise language and the number of empty pairs that will be added to it and presses the "OK" button. 
             3. The tool shows this editor which contains the new exercise with the initial configuration.

2. Use case: Add a new pair. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user presses the "Add" button located in the "Image-sound pairs" panel.
             2. The tool adds a new empty pair at the end of the image-sound pairs list.

3. Use case: Delete the selected pair. 

     Main actor: User. 
     Preconditions: This editor must be running and an image-sound pair has been selected.
     Main success scenario: 
             1. The user presses the "Delete" button located in the "Image-sound pairs" panel toolbar.
             2. The tool removes the selected pair from the image-sound pairs list.

4. Use case: The selected pair goes up. 

     Main actor: User. 
     Preconditions: This editor must be running, an image-sound pair has been selected and there must be at least one pair placed above.
     Main success scenario:  
             1. The user presses the "Up" button located in the "Image-sound pairs" panel toolbar.
             2. The tool raises the selected pair one position in the image-sound pairs list.

5. Use case: The selected pair goes down. 

     Main actor: User. 
     Preconditions: This editor must be running, an image-sound pair has been selected and there must be at least one pair placed below.
     Main success scenario:  
             1. The user presses the "Down" button located in the "Image-sound pairs" panel toolbar.
             2. The tool lowers the selected pair one position in the image-sound pairs list.

6. Use case: Change the correct/incorrect state. 

     Main actor: User. 
     Preconditions: This editor must be running and the image-sound pairs list can't be empty.
     Main success scenario:  
             1. The user clicks in the "Correct" column of a pair.
             2. The tool changes the state of that pair from correct to incorrect or viceversa.

7. Use case: Associate a sound with a pair. 

     Main actor: User. 
     Preconditions: This editor must be running and the image-sound pairs list can't be empty.
     Main success scenario: 
             1. The user looks for the desired sound in the "Sounds" panel. Once the sound is located, the user clicks on it to select it and, without releasing the button, he drags and drops it onto the "Sound" column 
                of the desired pair located in the image-sound pairs panel. 
             2. The tool associates the sound with that pair.

8. Use case: Remove the sound of a pair. 

     Main actor: User. 
     Preconditions: This editor must be running and the image-sound pairs list can't be empty.
     Main success scenario:  
             1. The user clicks with the mouse right button over the pair that he wants to remove its associated sound.
             2. The tool shows a small menu of options.
             3. The user selects the "Remove sound" option. 
             4. The tool removes the associated sound of that pair.

9. Use case: Associate an image with a pair. 

     Main actor: User. 
     Preconditions: This editor must be running and the image-sound pairs list can't be empty.
     Main success scenario:  
             1. The user looks for the desired image in the "Images" panel. Once the image is located, the user clicks on it to select it and, without releasing the button, he drags and drops it onto the "Image" column 
                of the desired pair located in the image-sound pairs panel.
             2. The tool associates the image with that pair.

10. Use case: Remove the image of a pair. 

     Main actor: User. 
     Preconditions: This editor must be running and the image-sound pairs list can't be empty.
     Main success scenario:  
             1. The user clicks with the mouse right button over the pair that he wants to remove its associated image.
             2. The tool shows a small menu of options.
             3. The user selects the "Remove image" option. 
             4. The tool removes the associated image of that pair.

11. Use case: Play a sound of a pair. 

     Main actor: User. 
     Preconditions: This editor must be running, the image-sound pairs list can't be empty and there must be at least one pair with an associated sound in the list.
     Main success scenario: 
             1. The user clicks in the "Sound" column of a pair.
             2. The tool plays the associated sound of that pair.

12. Use case: Get information. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user places the mouse cursor over any component of the editor.
             2. The tool shows the popup information about that component.

13. Use case: Edit the exercise name. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user enters the exercise name in the "Name" field and presses the "OK" button.
             4. The tool associates the new name to the exercise.

14. Use case: Edit the exercise sentence. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user enters the exercise sentence in the "Sentence" field and presses the "OK" button.
             4. The tool associates the new sentence to the exercise.

15. Use case: Change the time showing image. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user enters the time showing image in the "Time showing image" field and presses the "OK" button.
             4. The tool associates the new time showing image to the exercise.

16. Use case: Change the time between image and sound. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user enters the time between image and sound in the "Time between image and sound" field and presses the "OK" button.
             4. The tool associates the new time between image and sound to the exercise.

17. Use case: Change the time between sound and image. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user enters the time between sound and image in the "Time between sound and image" field and presses the "OK" button.
             4. The tool associates the new time between sound and image to the exercise.

18. Use case: Change pairs order. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user checks/unchecks the “Random image order” checkbox and presses the "OK" button.
             4. The tool toggles, from normal to random or viceversa, the order that the pairs will have while playing the exercise.

19. Use case: Change the exercise mode. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user selects the mode (Learning or Evaluation) from the "Mode" field and presses the "OK" button.
             4. the tool sets the mode of the exercise that is being edited.

20. Use case: Assign a general sound. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user looks for the desired sound in the bottom of the "General sounds of the exercise" panel.  
             4. Once the sound is located, the user clicks on it to select it and, without releasing the button, he drags and drops it onto one of the general sounds (Sentence, correct, incorrect or farewell). 
             5. The tool associates the selected sound with that general sound.

21. Use case: Remove a general sound. 

     Main actor: User. 
     Preconditions: This editor must be running.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user presses the "Remove sound" button (represented by a red cross) that is located to the right of the general sound that he wants to remove. 
             4. The tool removes that general sound from the exercise.

22. Use case: Play a general sound. 

     Main actor: User. 
     Preconditions: This editor must be running and the general sound must have been previously assigned.
     Main success scenario: 
             1. The user clicks the "Exercise configuration" button located in the "Image-sound pairs" panel toolbar.
             2. The tool shows the exercise configuration panel.
             3. The user presses on the general sound that he wants to play (represented by a speaker) . 
             4. The tool plays that general sound.
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