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Dose
Calculator

Automating the dose calculating process for health care professionals.

EXVACATION

Why Dose Calculator

Dose Calculator helps the healthcare providers to calculate the dose for a patient based on product, formulation, age group and weight. The ask was to redesign the layout for this app in a hybrid capacity.

Role

User Experience & Interface Designer

Research methods

Requirement was to recreate the current experience through a digital medium and preferably mobile version from usability and access point of view. The goal was to be able to create a format for healthcare professionals to input patient details like age, gender, weight, and the product and being able to calculate the dose based on the data. The challenge was to make a highly customizable layout capable to incorporate different data lengths without having to compromise on readability.

Project goal

Conducted a preliminary level of Heuristic evaluation of then existing native intranet app.

  1. Visibility of System Status:
    The application lacks visible indicators to show the user's progress, including loading times or any other waiting times after completing a step.
     

  2. Match Between the System and the Real World:
    The application's language and terminology are relatable to the target users, but the order of the information is unclear, and some information lacks correlation with the rest of the content.
     

  3. User Control and Freedom:
    The application does not provide clear navigation options, and there is no clickable area for the user to exit the app if necessary.
     

  4. Consistency and Standards:
    The application does not follow consistency in presenting information. For instance, there is no suggestive text for input fields, and the primary and secondary buttons look the same, making it challenging for the user to identify the primary functionality. The use of different colors at the footer does not reflect the brand language or express its purpose.
     

  5. Error Prevention:
    The application does not provide error notifications or ask for confirmation from the user before implementing an action.
     

  6. Recognition Rather than Recall:
    The application does not use instructions to trigger recognition of the given fields.
     

  7. Flexibility and Efficiency of Use:
    The application's means of navigation are minimal, and the workflow is unilateral, making it challenging to move freely from one section of the app to another.
     

  8. Aesthetic and Minimalist Design:
    The application design is minimalist; only essential information is presented on the screen. However, the visuals do not follow the brand guidelines and colors and collectively fail to create a coherent picture.
     

  9. Help Users Recognize, Diagnose, and Recover from Errors:
    The application does not involve any procedures for error prevention.
     

  10. Help and Documentation
    The app lacks tooltips to help users understand a given functionality. There is also no app tour included at the app's first launch. There is no provision for providing help to users.

EXTRACTION

Heuristic Evaluation

Conducting Heuristic Evaluation helped to:

Understand the functional, visual and technical loopholes of then existing legacy application and its usability pain points

Build a guideline for new design

Identify the team and expertise required to rebuild the new app

Create time and budget estimate related to the redesign efforts

Heuristic Evaluation guidelines adapted from- https://www.nngroup.com/articles/ten-usability-heuristics/

Following recommendations are according to the Heuristic evaluation done above. The verticals of the graph show improvement scale from 1 to 5, while the horizontals are the 10 Heuristic principles 

Recommendations

Recommendations

Existing design

3. Feature an Age Group dropdown instead of Age, offering various values for user selection based on the chosen brand and formulation.

4. Setup a visual language for user to correlate to the type of information of action

2. The product dropdown menu should display the brand name for user selection, while excluding the generic name

1. The result should reflect the values chosen by the user within the application.

5. Include a Weight field, which will be dynamically enabled or disabled based on the flag set. When the weight flag is set to 'N' for a product, the weight field should be disabled in the application.

6. Provide a means to recognize certain actions, such as input fields, by applying uniform visualization based on their functionality.

7. The dropdown menu for formulation should dynamically display options based on the user's product selection

8. Align to a specific layout the is uniform. Remove non- essential elements to incorporate breathable space

9. The product name on the Reference PI screen should be a combination of the Brand and the Generic name.

10. All the active fields in the application like Brand name, Formulation, Age Group and Weight(when active) shall be mandatory. Calculate button shall be enabled when all the fields are populated.

The hypothesis formulated for this project rested on the following principles:
 

  1. Healthcare professionals must possess the capability to calculate doses efficiently, accommodating various factors such as age, weight, formulation, and product.

  2. The display interface should be adaptable, capable of accommodating varying lengths of information without compromising readability.

  3. Readability must remain uncompromised throughout the usage of the interface.

  4. The preferred device for implementation was determined to be a mobile device, ensuring portability and accessibility.

Hypothesis

EXTRACTION

Final outcome

Lingo Pandit

End of life planning

The proposed interface could automatically calculate doses with thousands of permutations and combinations and could also divide lengthy data to an accordion display thus ensuring its readability and accessibility.

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