IS480 Team wiki: 2012T1 Bumblebee Project Documentation User Acceptance Test

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User Testing 1 (17 September 2012)


The goals and objectives of usability testing:

• Record and document general feedback and first impressions

• Identify any potential concerns to address regarding application usability, presentation, and navigation.

• Get feedback on the usefulness and accuracy of the functions developed.

• To match client expectations on the system developed.

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User Testing Environment

Computer platform : Intel Pentium Processor

Screen resolution : 1028 x 768

Operating System : Windows XP

Set-up required : Computer date format (English (Australia)) of d/MM/YYYY


The participants will attempt to complete a set of scenarios presented to them and to provide feedback regarding the usability and acceptability of the application.

1. Kevin Choy, SATS Airline Relations Manager - Person-in-charge for this project.

2. Goh Wei Xuan, SATS Airline Relations Manager



These instructions were given to our clients:

1. Each user will be accompanied by 1 facilitator.

2. Users are encouraged to verbalize their movements, purpose, and problems.

3. Facilitators will record mistakes and questions made by users during testing.

4. To start the test, click on the file named “START.bat” found in folder named “SATS_Bumblebee_Beta_v5”.

5. All sample files needed for testing are found in: SATS_Bumblebee_Beta_v5/data

6. Database used to store imported data is also found in ROOT folder.

7. Users are allowed to change their input(s) to verify data validity.

8. Users are to complete the tasks stated below. After completing each task, users have to answer the test questions pertaining to the specific task.


These are the task descriptions given to clients:

Below are tasks for users to complete.

1. Bootstrap/import files(s)

This task is for user to import data from excel files such as Flight Schedule Departure, Flight Schedule Arrival, Staff Records, etc. into the application. The application will then use these data for simulation purpose in the later step.

2. Add staff costs

This task is to record various costs in hiring staff into the application.

3. Add uncertainties

This task is to record the mean and standard deviation of different uncertainties that will affect the initial schedule prepared by the application. Simulation period = 7 days (represents the number of days the data is to be generate).

4. Run simulation

Run simulation to start assigning staff to different job assignments.

5. View staff schedule (in Gantt Chart)

This allows user to view and compare between a staff’s planned and actual working time.

6. Add airline requirements

Airlines have several different requirements on number of CSA and CSO needed.

This task is to record the individual requirements into the database. The input data will be used for simulation purpose in the later step.

7. Generate result

This task is to view the result generated in PDF format.

Team Roles

Overall in-charge (Yosin Anggusti)

- Provide training overview prior to usability testing

- Defines usability and purpose of usability testing to participants

Facilitators (Glorya Marie, Suriyanti)

- Evaluate on the application and user interaction with the application, rather than evaluating on the user

- Facilitator will observe and enter user behavior and user comments.

- Responds to participant’s requests for assistance

Test Observers (Yosin Anggusti)

- Silent observers

- Assists the data logger in identifying problems, concerns, coding bugs, and procedural errors

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Reporting Results

Usability Metrics

Critical Errors

Critical errors are deviations of results from the actual result. These errors will cause the task to fail. Facilitators are to records there critical errors.

Non-Critical Errors

Non-critical errors are usually procedural, in which the participant does not complete a task in the most optimal means (e.g. excessive steps, initially selecting the wrong function, attempting to edit an un-editable field). These errors may not be detected by the user himself. Facilitators have to record these errors independently.

Scenario Completion Time

The time to complete each scenario, not including subjective evaluation durations, will be recorded.

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Reporting Results

Reporting Results

Task 1: Bootstrap/ Import File(s)

Bootstrap/import file(s) Concern Recommendations
Critical Errors -- --
Non-Critical Errors - Window to get bootstrap data blocked the “Bootstrap Data” page. - @Homepage: give system name instead of “Welcome..”

- “Bootstrap”change it to: “import” - Texts are not cleared after bootstrap is started - 1% progress bar is not implemented - Have everything in process view (e.g. Breadcrumb) - While importing, disable all browse and bootstrap buttons.

Scenario Completion Time 4 minutes --

Task 2: Add Staff Costs

Add staff costs Concern Recommendations
Critical Errors -- --
Non-Critical Errors - Unsure if the default figures can be changed / edited. - Stick to current cost

- Add shortcut key like control S to simulate

Scenario Completion Time 10 seconds --

Task 3: Add Uncertainties

Add uncertainties Concern Recommendations
Critical Errors -- --
Non-Critical Errors - Flight delay rate should not be just MEAN and STDEV. They may not be reflective of certain infrequent scenario, e.g. strike that causes 3 hrs delay. Happens every year.

- Unsure if all stdev has to be filled. - What to fill for stdev?

- Allow users to add input on when (certain days and certain flight) will have xx hours of delay.

- Show ALL flight delay rate and allow user to change the data just like in Manage Airline Requirements.

Scenario Completion Time 10 seconds --

Task 4: Run Simulation

Run simulation Concern Recommendations
Critical Errors - Low staff utilisation rate --
Non-Critical Errors - Do not have print outs, they will slow down the system. - - Kevin will get back to us on the staff utilization rate

- The “optimize schedule” button run from the homepage does not contain BACK button. - Generate optimal schedule button is not obvious - Window is not - The circle does not display - Does not display the remaining time required for the simulation to complete - Staff Utilization Rate = Total Working Time within roster hour / Total Roster Hours Assigned (this excludes the overtime hours and recall hours)

Scenario Completion Time 10 seconds --

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Subjective Evaluations

Subjective Evaluations

Subjective evaluations regarding ease of use and satisfaction will be collected via questionnaires. There are 2 participants, thus results from both participants will be combined or averaged whenever it is necessary.

Each of the two participants contributes 50% to their answers. Not all sections are answered, thus not all questions have a total of 100% weight.

Navigation Impression Agree Neutral Disagree
It is easy to find my way around the system -- -- 50%
It is easy to remember where to find things -- 50% --
The system is well-suited to first-time users -- -- 50%


-‘Back’ button at simulation is missing

- Have a flow. Not sure which button to select?

- Need more instructions for first time users.

Look and Feel Agree Neutral Disagree
The interface design is simple 100% -- --
The size and layout of the application is optimal -- 100% --
Functions Agree Neutral Disagree
Each function has a clear purpose 50% 50% --


- Must be more explicit on description

Bootstrap/import file(s) Agree Disagree
The function works well 100% --
The function takes reasonable amount of time 100% --
The function provides right amount of information 100% --
The result/outcome of the function is right 100% --


- “Bootstrap” should be changed to “import”

- Disable ‘browse’ button when bootstrapping

Add staff costs [Manage Simulation Parameters] Agree Disagree
The function works well 100% --
The function takes reasonable amount of time 100% --
The function provides right amount of information 100% --
The result/outcome of the function is right 100% --
Add uncertainties [Manage Sim. Parameters] Agree Disagree
The function works well 100% --
The function takes reasonable amount of time 100% --
The function provides right amount of information 100% --
The result/outcome of the function is right 100% --


- Unit of measurement change to “hrs+mins”

- Allow shortcut key(e.g. [Alt + S] to start simulation)

Run Simulation Agree Disagree
The function works well 50% --
The function takes reasonable amount of time 50% --
The function provides right amount of information 50% --
The result/outcome of the function is right 50% --


- Inconsistent textbox format

- Progress bar is not showing

- Exception handling. Encountered null pointer exception.

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Reporting Conclusions

Reporting Conclusions

• Client was satisfied with the system. However, there are more to be improved in terms of the presentation and navigation of the application.

• Client, especially another participant gained better and clearer understanding on what the application delivers after testing the application.

• There are critical errors on the logic/formula for staff utilization rate and staff working hours that can be further improved to increase the accuracy of the calculation.

• Non-critical errors will also be solved.

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