Evaluation of the usability of the Quali+ mobile application for people with high blood pressure

Silva, Louyse Victória Ferreira da; Santos, Joelma Silva; Sousa, Mailson Marques de; Gouveia, Bernadete de Lourdes André; Oliveira, Simone Helena dos Santos; Almeida, André Atanasio Maranhão; Almeida, Taciana da Costa Farias

doi:10.1590/1983-1447.2023.20230058.en

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Original Article • Rev. Gaúcha Enferm. 45 • 2024 • https://doi.org/10.1590/1983-1447.2023.20230058.en copy

Evaluation of the usability of the Quali+ mobile application for people with high blood pressure

Evaluación de la usabilidad de la aplicación móvil Quali+ para personas con hipertensión arterial

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Objective:

To evaluate the usability of the “Quali+” mobile application prototype for people with high blood pressure.

Method:

Descriptive, cross-sectional study of heuristic evaluation of a mobile application prototype carried out between June and July 2021, in a university hospital. Participants were 22 people with arterial hypertension in the city of Campina Grande, PB, Brazil. To measure usability, the Smartphone Usability questionnaiRE instrument was applied. Levels (70 points have good usability. Descriptive statistics were used.

Results:

The overall usability average was 105.8(7.44 points, with the lowest score being 83 and the highest being 113. Usability was at the highest level(80 points).

Conclusion:

The usability evaluation showed that, although it is a prototype, the application has good usability and can be considered for routine use in health self-management. Future research is needed to verify its effectiveness.

Descriptors:
Mobile applications; Hypertension; Self care; User-centered design; Technology; Nursing

Items	Mean (SD)	Min	Max
1. I found it easy to enter data into these applications. For example, using the “etc.”	3.68 (0.56)	2	4
2. When I make a mistake it is easy to correct it.	3.59 (0.73)	2	4
3. I found the help/tips given by the app to be useful.	4.00 (0.00)	2	4
4. It was easy to find the information I needed.	3.86 (0.46)	2	4
5. I felt in charge using this app.	3.59 (0.66)	2	4
6. I found that the time taken to complete the tasks is appropriate.	3.59 (0.59)	2	4
7. It was easy to learn how to use this app.	3.77 (0.52)	2	4
8. The sequences of actions in the app match the way I normally perform them. For example, the order of buttons, data fields, etc.	3.55 (0.51)	3	4
9. It's easy to do what I want using this app.	3.73 (0.63)	2	4
10. It was easy to navigate the app's menus and screens.	3.82 (0.51)	2	4
11. The application meets my needs.	3.86 (0.35)	3	4
12. I would recommend this app to others.	3.95 (0.21)	3	4
13. Even if I was in a hurry, I would be able to perform tasks in this application.	3.50 (0.74)	2	4
14. I found the app to be consistent. For example, all functions can be performed in a similar way.	3.50 (0.67)	2	4
15. It's easy to remember how to do things on this app.	3.68 (0.64)	2	4
16. I would use this app frequently.	3.68 (0.47)	3	4
17. The organization of menus and action commands (such as buttons and links) is logical, which allows you to easily find them on the screen.	3.73 (0.45)	3	4
18. I was able to complete the tasks successfully using this app.	3.77 (0.61)	2	4
19. I enjoyed using this app.	3.82 (0.39)	3	4
20. The application provides all the information necessary to complete tasks in a clear and understandable way.	3.82 (0.39)	3	4
21. I found the app very difficult to use.	1.14 (0.56)	0	3
22. The symbols and icons are clear and intuitive.	3.77 (0.42)	3	4
23. I found the texts easy to read.	3.91 (0.29)	3	4
24. I found the app unnecessarily complex. I had to remember, research or think a lot to complete the tasks.	0.95 (0.57)	0	3
25. The terminology used in texts, labels, titles, etc. is easy to understand.	3.73 (0.93)	0	4
26. I would need someone's support to use this app.	1.64 (1.04)	1	4
27. I felt comfortable using this app.	3.77 (0.52)	2	4
28. The app behaved as I expected.	3.77 (0.42)	3	4
29. I found it frustrating to use this application	1.05 (0.21)	1	2
30. I found the various functions of the application to be well integrated.	3.82 (0.39)	3	4
31. I felt very confident using this app.	3.82 (0.50)	2	4

Participants	Age	Gender	Total SURE score	Usability level
1	52	Female	99	80
2	56	Female	108	80
3	57	Female	108	80
4	44	Female	112	80
5	42	Female	112	80
6	63	Male	95	80
7	53	Female	106	80
8	39	Female	104	80
9	50	Female	106	80
10	26	Female	112	80
11	44	Male	111	80
12	59	Female	83	80
13	69	Female	99	80
14	49	Female	109	80
15	45	Male	106	80
16	30	Female	103	80
17	64	Female	97	80
18	43	Female	112	80
19	41	Male	111	80
20	44	Female	112	80
21	52	Female	111	80
22	55	Female	113	80

Universidade Federal do Rio Grande do Sul. Escola de Enfermagem Rua São Manoel, 963 -Campus da Saúde , 90.620-110 - Porto Alegre - RS - Brasil, Fone: (55 51) 3308-5242 / Fax: (55 51) 3308-5436 - Porto Alegre - RS - Brazil
E-mail: revista@enf.ufrgs.br

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[1] Corresponding author:
Taciana da Costa Farias Almeida E-mail: taciana.costa@professor.ufcg.edu.br