Mobile application for accessible communication with pre-hospital emergency care: e-SU

Montandon, Diego Santiago; Oliveira, Luiz Carlos Souza de; Araújo, Agostinho Antônio Cruz; Sant’Ana, Ricardo Souza Evangelista; Mendes, Isabel Amélia Costa; Godoy, Simone de

doi:10.37689/acta-ape/2024AO000026655

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Acta Paulista de Enfermagem

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Original Article • Acta Paul Enferm 37 • 2024 • https://doi.org/10.37689/acta-ape/2024AO000026655 copy

Mobile application for accessible communication with pre-hospital emergency care: e-SU

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Objective

To describe the process of developing and evaluating a mobile application prototype to enable people with complex communication needs to call pre-hospital emergency services.

Methods

This methodological study was conducted in three stages: determining the target population’s functional requirements; developing and making available a prototype application for touchscreen mobile phones to request pre-hospital services; experts assessed the usability heuristics using a checklist, while the target population (people with complex communication needs) used the System Usability Scale. Descriptive statistics were performed, and the scores assigned to the application were analyzed.

Results

The application obtained high usability scores (mean=58.75) and 21 individuals from the target population reported an excellent user satisfaction index (mean=89.5), which allowed registering and applying for the prototype’s patent.

Conclusion

The prototype showed the ability to enable individuals with complex communication needs to access and request pre-hospital emergency services.

Smartphone; Cell phone; Wireless technology; e-Accessibility; User-centered design; Digital technology; Emergency relief; Triage; Health services needs and demand

Heuristics	Items	P1	P2	P3	P4	P5
1- Visibility of system status (0-5p)	1	1.25	1.25	1.25	1.25	1.25
	2	1.25	1.25	1.25	1.25	1.25
	3	1.25	1.25	1.25	1.25	1.25
	4	1.25	1.25	1.25	0	1.25
2- System matching (0-2.5p)	5	1.25	1.25	1.25	1.25	1.25
2- System matching (0-2.5p)	6	1.25	1.25	1.25	1.25	1.25
3- User Control and Freedom (0-6.25p)	7	1.25	1.25	1.25	1.25	1.25
	8	1.25	1.25	1.25	1.25	1.25
	9	1.25	1.25	1.25	1.25	1.25
	11	1.25	1.25	1.25	1.25	1.25
	12	1.25	1.25	1.25	1.25	1.25
4 – System Consistency and Standards (0-13.75p)	13	1.25	1.25	1.25	1.25	1.25
	14	1.25	1.25	1.25	1.25	1.25
	15	1.25	1.25	0	0	1.25
	16	1.25	1.25	1.25	1.25	1.25
	17	1.25	1.25	1.25	1.25	1.25
	18	1.25	1.25	1.25	1.25	1.25
	19	1.25	1.25	1.25	1.25	1.25
	20	1.25	1.25	1.25	1.25	1.25
	21	1.25	1.25	1.25	1.25	1.25
	22	1.25	1.25	1.25	1.25	1.25
	23	1.25	1.25	1.25	1.25	1.25
5- Recognition instead of remembrance (0-2.5p)	24	1.25	1.25	1.25	1.25	1.25
5- Recognition instead of remembrance (0-2.5p)	25	1.25	1.25	1.25	1.25	1.25
6 – Flexibility and efficiency of use (0-6.25p)	26	1.25	1.25	1.25	1.25	1.25
	27	1.25	1.25	1.25	1.25	1.25
	28	1.25	1.25	1.25	1.25	1.25
	29	1.25	1.25	1.25	1.25	1.25
	30	1.25	1.25	1.25	1.25	1.25
7 – Aesthetics and Minimalist design (0-7.5p)	31	1.25	1.25	1.25	1.25	1.25
	32	1.25	1.25	1.25	1.25	1.25
	33	0	1.25	1.25	1.25	0
	34	1.25	1.25	1.25	1.25	1.25
	35	1.25	1.25	1.25	1.25	1.25
	36	1.25	1.25	1.25	1.25	1.25
8 – Human device interaction (0-1.25p)	37	1.25	1.25	1.25	1.25	1.25
9 – Physical interaction and ergonomics (0-6.25p)	38	1.25	1.25	1.25	1.25	1.25
	39	1.25	1.25	1.25	1.25	1.25
	40	1.25	1.25	1.25	1.25	1.25
	41	1.25	1.25	1.25	1.25	1.25
	42	1.25	1.25	1.25	1.25	1.25
10 – Legibility and layout (0-7.5p)	43	1.25	1.25	1.25	1.25	1.25
	44	1.25	1.25	1.25	1.25	1.25
	45	1.25	1.25	1.25	1.25	1.25
	46	1.25	1.25	1.25	1.25	1.25
	47	1.25	1.25	1.25	1.25	1.25
	48	1.25	1.25	1.25	1.25	1.25
Total per expert (0-60p) Average final total score	58,75	60.00	58.75	57.50	58.75	58.75

Participant		Items										User Satisfaction Index	Mean user satisfaction index
Participant		1	2	3	4	5	6	7	8	9	10	User Satisfaction Index	Mean user satisfaction index
Blind	C1	4	4	4	3	4	4	4	3	4	3	92.5	83.3
	C2	3	3	3	4	2	2	3	4	2	2	70.0
	C3	4	4	4	4	2	4	4	1	4	4	87.5
Impaired vision	BV1	4	4	4	4	4	4	4	4	3	4	97.5	87.5
	BV2	4	3	4	3	4	4	3	4	4	1	70.0
	BV3	4	4	4	2	4	4	4	4	4	4	95.0
Deaf	S1	4	4	4	4	4	4	4	4	4	4	100.0	96.6
	S2	4	4	3	4	4	4	4	4	4	4	97.5
	S3	4	4	4	4	3	4	2	4	4	4	92.5
Impaired hearing	BA1	2	4	4	4	4	4	4	4	4	2	90.0	95.0
	BA2	4	4	4	4	4	4	4	2	4	4	95.0
	BA3	4	4	4	4	4	4	4	4	4	4	100.0
Older person	I1	4	4	4	3	4	4	4	4	2	4	92.5	89.1
	I2	4	4	4	1	4	4	4	4	4	4	82.5
	I3	1	4	4	4	4	2	4	2	4	4	92.5
Lives alone	MS1	4	3	4	4	4	4	4	4	4	4	97.5	95.8
	MS2	4	4	4	4	4	1	3	4	4	4	92.5
	MS3	4	4	4	4	3	4	4	4	4	4	97.5
Blind and lives alone		1	4	4	4	4	4	4	4	1	1	75.0	75.0
Deaf and lives alone		2	4	3	4	4	1	4	4	1	2	72.5	72.5
Older person, and lives alone		4	4	3	4	3	4	4	3	4	4	90.0	90.0
Total													89.5

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[1] Corresponding author
Diego Santiago MontandonE-mail: montandonds@usp.br