A User Centred Approach in the Implementation of Mobile

Marketing in Health Applications

Tiago Filipe Bravo Fernandes and André Vasconcelos

INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal

Keywords: Healthcare Application, Medical Appointment Booking, Mobile Application, Mobile Marketing, UI, UX.

Abstract: Medical appointments booking applications allow an easy way of accessing information about a healthcare

provider like the possibility to see the CV of a medical health professional, an easy acquisition of a healthcare

service or being able to see other patients reviews of the service. This paper describes the development of a

mobile application, having mobile marketing as the main feature of it. This mobile application is an extension

of a web based medical care appointment booking service. This research explores the various possibilities of

mobile marketing by applying and reviewing User Interface (UI) and User Experience (UX) guidelines in

order to provide the best user experience. The mobile marketing side of the application is used to offer patients

suggestions for booking an appointment based on the location, medical history and recent searches on the

application. Regarding the User Experience, several guidelines are assessed including the simplification of

the medical appointment booking process, the presentation of an onboard screen for easier user interaction

and all services before asking for a login. Through various test scenarios, using a focus group approach, the

application presents satisfying user experience results, above the market average comparable applications.

1 INTRODUCTION

Medical services applications have arrived to allow

an easy way of accessing information about a

healthcare provider like the possibility to see the CV

of a medical health professional or the portfolio of

medical services provided. Additionally, healthcare

applications also present an opportunity for faster and

easier search and acquisition for health care services,

considering other patients’ reviews. These

applications also allow features that overcome

problems like patient’s transportation, large waiting

lists to perform a medical appointment and provide

the user the power to search for the service easily and

anywhere.

There are already some medical booking

applications on the market, however, most only

provide appointments in their own healthcare

provider and few take advantage of the technologies

available in mobile devices nowadays, like the

location sensor and the ability to start the interaction

with the user. With this in mind, this research is

applied on the development of a mobile application

for MedClick (https://medclick.pt/) having mobile

https://orcid.org/0000-0003-0038-7199

marketing as a main feature of it. This mobile

application is an extension of the MedClick online

platform which is a medical care appointment

booking service.

1.1 Objectives

MedClick provides to the users a fast and user-

friendly way to find a health professional across

multiple medical service providers. The patients are

able to book the appointment based on the date,

location, price, insurance providers or customer

reviews (Berman, 2016); the goal is for the service to

be available online and on smartphones and tablets.

The mobile marketing on the application is used

to offer the patient suggestions for booking an

appointment based on his or her location, medical

history or recent searches in the application.

Together with mobile marketing, this application

follows User Interface (UI) guidelines. It also gathers

feedback from test users in order to enrich the User

Experience (UX) and make the experience of booking

an appointment easier and faster.

Fernandes, T. and Vasconcelos, A.

A User Centred Approach in the Implementation of Mobile Marketing in Health Applications.

DOI: 10.5220/0009176902630272

In Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2020) - Volume 5: HEALTHINF, pages 263-272

ISBN: 978-989-758-398-8; ISSN: 2184-4305

263

1.2 Document Outline

This paper has a structure composed of 6 main

sections and is organized as follows. Section 2

includes an overview of the background investigated.

Section 3 describes the requirements of the solution.

Section 4 presents the implementation of the solution.

Section 5 provides an overview of the evaluation

performed and the results reached. Section 6 presents

the conclusions and research future work.

2 BACKGROUND

This section is composed of the subsections that show

the research and analysis performed for gaining

knowledge to reach the solution definition. In

subsection 2.1 it is reviewed the available

frameworks to develop the solution. In subsection 2.2

it is presented the basis of mobile marketing. In

subsection 2.3, a set of guidelines to develop the

interface and experience are stablished. In subsection

2.4 it is analysed and compared current medical

appointment booking applications.

2.1 Mobile Development Frameworks

The goal for the MedClick mobile application is to be

available in the two most popular mobile operating

systems in the world, iOS and Android (StatCounter

2018). One way to make this possible would be to

code natively for both operating systems. However,

this would be very time consuming because it is the

same as creating two different applications in two

different programming languages and with two

different frameworks (e.g., XCode for iOS and

Android Studio for Android), for the same purpose.

Another way to develop the solution is to use a cross-

platform development framework.

Cross-platform mobile application development

frameworks have emerged with the goal of simplify

the development of cross-platform mobile

applications, reduce the development, maintenance

costs and the time-to-market of the applications

(Martinez and Lecomte, 2017). With these

frameworks, the developer is able to share the code

between the platforms, achieving the principle of

“code once, deploy everywhere”.

2.2 Mobile Marketing

“Mobile marketing refers to the two or multi-way

communication and promotion of an offer between a

firm and its customers using a mobile medium, de-

vice, or technology” (Leppaniemi, 2008). This is a

different way of communicating with the customers,

not just waiting for the customer to interact with the

company mobile application for example, but giving

incentives to use it. Mobile marketing can provide

customers with time, location sensitive (Gana,

Thomas, and Kashif, 2017) and personalized

information that promotes goods, services and ideas

(Shankar and Balasubramanian 2009).

2.3 User Interface (UI) and User

Experience (UX)

When developing a mobile application, one of the

most important aspects of it is the user interface and

user experience. What the user sees and feels when

using the application can determine the success of it.

The application might do what a user needs but if it

does it in a very unintuitive way, slowly or

confusingly, users will stop using it. (Dirin, and Laine

2018).

2.3.1 User Testing

User testing should be performed on every project

because even the best product designer cannot predict

every possible action and interaction of the user. The

best way to ensure a good User Experience is to have

insights from the users themselves. It allows the

designers to identify resistance and flaws in the user

experience they are designing. This way, that design

flaw can be addressed before entering in production

or being deployed (Aranyi, and Schaik, 2016).

Besides metrics like the time users spend on each

screen of the application, users can also give their

opinion about the experience using the application.

Usually, the sooner the user testing starts, the better it

is to find problems with the solution proposed and

solve them with less work required.

2.3.2 Mobile Applications User Experience

Design

There is no single definition of a good user

experience. A good user experience is one that meets

a particular user’s needs in the specific context of

using the product. However, there are some overall

principles to ensure that a mobile application has a

good experience.

First of all, when designing native platforms, the

designer should respect the platform and consistently

refer to the native operating system design guidelines.

Popular mobile operating systems are now providing

usability guidelines which focus mainly on

HEALTHINF 2020 - 13th International Conference on Health Informatics

264

maintaining coherent interaction and presentation

through applications over the whole platform. For

iOS there are Apple’s Human Interface Guidelines

(Apple, 2019) and for Android there are Google’s

Material Design Guidelines (Google, 2019).

But only following the design guidelines won’t

result automatically in a good user experience. Other

good principle to keep in mind is to always design for

the customer benefit. This means that in every use

case the designer should focus on how it will benefit

the customer (Hubert et al., 2017). Considering this,

the designer should prioritize features because adding

as many features as possible will rarely result in a

better experience. It is better for the application to be

simple with a refined experience around its core

objectives and not clutter the user interface with too

much information. “Perfection is achieved, not when

there is nothing more to add, but when there is

nothing left to take away” (Saint-Exupéry,

Galantière, and Gilbert, 1943).

2.4 Analysis of Medical Appointments

Booking Applications

There are some applications already available to the

patients that can schedule Medical Appointments.

However, they have different features and

characteristics. The analysis next presented is focus

on the strong and weak points of each one,

highlighting them in order to improve the solution

proposed.

Table 1: Mobile medical appointments booking

applications comparative analysis summary.

From the information presented in Table 1 it is

possible to conclude that the service that reaches

more people is Zocdoc (Zocdoc 2019) because it is

not restricted to a single medical provider, it has all

the features mentioned and it is available in every

platform. All services have agreements with

insurance and keep track of the patient appointment

history. Both My CUF (Saude CUF, 2019) and

Joaquim Chaves Saúde (Saude JC, 2019), the two

services that only offer appointments in their own

medical facilities, have the same main functionalities;

the only difference is the recommendations made to

its patients and the design of the applications and web

portal.

3 REQUIREMENTS

The objective of this paper is to create a mobile

application for mobile marketing. This mobile

application is an extension of the MedClick online

platform, a medical appointment booking service.

Figure 1: Searching for Appointment Use Case.

MedClick is a web platform in which users

schedule medical appointments based on the date,

location, price, insurance providers and customer

reviews. The mobile application is expected to

integrate all the functionality of the web platform and

enhance it with mobile marketing techniques. This

adds value to the whole MedClick platform, that in

this way can reach more users and in different

devices, giving the user the ability to do same task

regardless of the device used. The approach proposed

also takes advantage of the location sensors of mobile

devices to facilitate in the medical appointment

search process and in providing the user with useful

push notifications.

The MedClick mobile application is expected to

ensure the following major features:

• Searching for a medical appointment - The user,

authenticated or not, can search for a medical

appointment by specialty, location, date, health

professional, price, insurance providers or

customer reviews (see Figure 1). It is not required

authentication for this feature, to allow for a wider

user base and for a better user experience, not

having to login or sign up before exploring

anything on the application.

• Booking a medical appointment – After reviewing

all the previous point parameters, location, date,

health professional, price, insurance providers and

A User Centred Approach in the Implementation of Mobile Marketing in Health Applications

265

reviews, and selecting an available time slot for

the appointment, the user is required to login or

Figure 2).

• History of the medical appointments – The

authenticated user can review all the previously

attended appointments. This feature also includes

the preview of the future appointments so that the

user can keep track and cancel them if needed.

• Alerts for future appointments – The application

should send a push notification to the user when

the appointment date is close to make sure the user

doesn’t forget about it (Figure 3).

• Mobile Marketing – Depending on the mobile

marketing campaign available in the MedClick

platform, the application sends a push notification

to the user (Figure 3).

Figure 2: Booking Medical Appointment Use Case.

Figure 3: Push Notification Use Case.

https://expo.io/

4 IMPLEMENTATION

Based on the research made about cross platform

mobile application frameworks, the framework

chosen was the React Native with Expo toolchain

With Native React it is possible to build a mobile

application that is indistinguishable from a native

mobile application built using Swift or Java because

it uses the same building blocks as regular iOS and

Android applications. It will provide a superior user

experience than hybrid applications. Additionally,

from a development viewpoint, that is possible using

just JavaScript code without the need to learn swift or

C#. Features like hot reloading and simpler

application deployment also support this decision.

After deciding the development framework, the

approach was to wireframe the application and all the

functionalities before implementing them. Using

these wireframes, it is important to check if the

usability guidelines are being followed.

Figure 4: Application wireframe example.

The next step was to start developing the

application. The expo toolchain makes the

initialization of the project a straightforward process.

The command “expo init” gives several options to

start the project. It was chosen a template with several

HEALTHINF 2020 - 13th International Conference on Health Informatics

266

example screens and tabs that were very similar to the

design in the wireframes. After that it was a matter of

developing screen by screen and feature by feature,

testing them when implemented. These features

include having an onboarding screen to introduce the

user to the application, prioritizing most of the

interaction with the application before login and

sending push notifications to engage with the user.

4.1 Booking a Medical Appointment

The medical appointment process starts in the main

screen of the application, as presented in Figure 5.

This screen provides users the suggestion to book a

medical appointment.

Figure 5: Main Search Screen (on the left) and Screen with

List of Specialties (on the right).

Users have 3 options in this screen: choosing a

specialty, choosing a health professional or selecting

the advanced search option. If the specialty option is

selected, users navigate to the screen presented in the

same figure (in the right), a section list of the

specialties divided by letter and sorted alphabetically.

Users can also use the search bar to quickly find the

wanted specialty.

The next screen presents a map that includes the

locations of the healthcare providers that have

medical services of the selected specialty (Figure 6).

In this screen users can tap on any map pin to select a

healthcare provider or skip this step and choose the

health professional by name.

In the main screen (Figure 5), if users pressed the

health Providers instead of the specialties, they would

skip the list specialties screen and the map screen and

navigate directly to the screen where they can choose

the preferred health professional (Figure 6).

Figure 6: Map Screen (on the left) and Screen with List of

Health Professionals (on the right).

After choosing the specialty, the health provider

and the health professional, it is presented with a

screen containing all the information about the health

professional. In this screen, users can view the name

of the health provider, contact, location, availabilities,

map with providers, rating and curriculum (Figure 7).

Figure 7: Health Professional Information Screens.

When users select the desired date of the medical

appointment, an alert appears on the screen to confirm

all the choices made by the user (Figure 8).

The next screen depends if the users are already

logged in or not. If they are not logged in, a login

screen will be presented.

If the users are already logged in, they will be

redirected to the Appointments tab, where they can

review all the past and future medical appointments

booked through MedClick. An alert is shown letting

the user know that the appointment is booked.

A User Centred Approach in the Implementation of Mobile Marketing in Health Applications

267

Figure 8: Appointment Confirmation Alert.

4.2 Onboarding

Having an Onboarding screen is a very important

aspect of the user experience of a mobile application.

It gives users a quick and simple introduction in the

first time they open the application, explaining its

basic functionality. For this solution it was chosen a

simple swipeable card interface with four cards in

total, showing just one at a time. The four cards

chosen represent the four tabs of the application:

Search, Appointments, Profile and Notifications. In

each card, the name of the tab is a small description

of that section, and contains information regarding

what the users will find and can do in that section –

see Figure 9 and Figure 10.

Figure 9: Onboarding Screens (1/2).

This way, even before interacting with the

application, the users already know what to expect

and where to find the functionality they are looking

for. Only one card appears in the screen at a time,

however it is possible to see part of the next card,

giving users the idea that there are more cards to see

and interact.

Figure 10: Onboarding Screens (2/2).

Below the cards there is an always visible button

to skip this introduction screen. This gives users the

chance to see all the cards or just ignore the tutorial

all together, not making them lose time with

something they are not interested in.

4.3 Prioritize Search before Login

All medical booking applications tested (see section

2), with the exception of Zocdoc, request the user to

application. This is a major obstacle to the users

because when they are expecting to start to interact

with the application, they have to go through a tedious

the goal of providing freedom to the user to search

and use all the functionalities without the need to

appointment, either by specialty or by health

professional, searching the available healthcare

providers and even receiving notifications based on

the search history. This is achieved by creating a

session linked to the device token, which can give the

platform the ability to analyse the patients search

history and notify them of a discounted appointment.

In the appointment tab and in the profile tab, when

the user is not logged in, it is presented a simple

HEALTHINF 2020 - 13th International Conference on Health Informatics

268

button in the middle of the screen asking the user to

4.4 Notifications

One important aspect of the solution is the

notifications functionality. There are several

scenarios where a notification should be deployed to

the application:

• When users enter a predetermined area,

established by the MedClick platform, where it is

available a mobile marketing campaign or some

suggestion to the users of a certain location.

• All the search history of the users is saved on the

MedClick platform, where it can then be analysed

to send suggestions of appointments and

schedules based on that user’s history. When this

happens, a notification is sent to the user.

• To remind users of upcoming medical

appointments. The application sends a push

notification to the user when the appointment date

is close to make sure the user did not forget about

it.

For this to happen, when the user logs in the

application, it sends to the server the token that

identifies the device when receiving notifications, the

ExpoPushToken. This token is then associated to the

logged user. This way, anytime a notification is

triggered to a specific user, the server knows what

device to send the notification.

Figure 11: Notification Screens.

4.5 Weblogging of User Information

All the requests made by the application to the

platform are saved in order keep track of the users’

habits inside the application. This way it is possible

for the users to receive notifications based on their

search history, with suggestions for appointments or

even discounted appointments.

5 EVALUATION

In this section it is described the iterative testing

methodology and its contribution to the final solution.

Then it is described all the Focus Group Test

Scenarios and its results. Lastly it is discussed the

limitations of the tests.

5.1 Iterative Testing Methodology

The approach developed aim at having real users

testing each iteration of the application. When testing,

users will always have access to a feedback tab on the

application where they can give feedback about the

current screen. After concluding the testing process,

it is presented a small questionnaire to the users with

questions about their age, gender, profession and

education. All this information is sent to the

MedClick servers, as well as the users’ location and

information about the time spent on each screen of the

application.

The test methodology was planned in order to

receive real users’ feedback and to improve the

application in iterative steps. The first functionality

tested was the book appointment process. The

application was sent to several users. Some flaws

were discovered very quickly. In the logs it was

visible that some users were not completing the full

testing process. Additionally, others were stuck on the

same screen for a long period of time. There were also

duplicated logs of users that reloaded the application

and interacted again.

In total, in this short first iteration test, it was

gathered data from 11 trustworthy tests, 8 male test

users and 3 female test users, with an average age of

29,4 years. It was concluded that with these errors

leading to such a small amount of data gathered, the

testing approach should change and rely on focus

group testing.

5.2 Focus Group Test Scenarios

After the first small iterative testing, it was decided to

change the approach to a focus group testing, using a

small group of people to test the application (in

person), in this case, 18 people. Each person was

given three test scenarios where he or she had to

perform certain tasks in both the MedClick mobile

application and in two other medical booking

applications reviewed in section 2, namely “My

A User Centred Approach in the Implementation of Mobile Marketing in Health Applications

269

CUF” and “Joaquim Chaves Saúde” applications.

These applications were chosen because they were

the most similar ones to the proposed solution, in the

Portuguese market.

To measure the impact of not having a login

screen as the first interaction of the user with the

application, users had to start each test without a

logged session or any other preference in the

application. Another reason for this was that neither

My CUF nor Joaquim Chaves Saúde retain the user

similar across all applications, login was needed in all

scenarios.

5.2.1 Scenario 1 - Appointment Booking for

a Health Professional

The first scenario given to the test users was to book

an appointment for a specific health professional.

This scenario assesses the impact of having a quick

option to select the desired health professional and

test the premise that if a patient wants to have a

medical appointment with a specific health

professional, all other parameters are not that

relevant.

Table 2: Scenario 1 results.

Application

Average Time

to Complete

Scenario

Standard

Deviation of

Average Times

My CUF (Health

Professional Maria de

Vasconcelos)

1m25s 18s

Joaquim Chaves Saúde

(Health Professional Maria

de Fátima Miguel)

1m43s 25s

MedClick Mobile

Application (Health

Professional Maria

Fernandes)

53s 11s

Most users had no problems in quickly identifying

the search by health professional on the MedClick

mobile application. This translated in Table 2 results,

where users were in average more than 30 seconds

quicker to complete the task comparing to the other

two applications.

Another reason for these results were some bugs

with the My CUF application that sometimes just

loads blank screens and the user has to go back and

try to submit the request again for the process to

continue.

Also, on the Joaquim Chaves Saúde application,

even when choosing a specific health professional,

the application requires users to select the type of

appointment. This translated in an extra step users had

to go through, most of times to select the only option

present, making this action completely unnecessary.

Lastly, one feedback received multiple times was

to change the alert presented to after the login screen

when login is needed. That way the last step before

booking the appointment was actually confirming it.

5.2.2 Scenario 2 - Appointment Booking by

Specialty

The second test scenario was to give users the task of

booking another medical appointment but this time

with the specialty as a main focus. All other

parameters such as location, health professionals,

date or others were completely optional and up to the

user. This test assesses the impact of having the

specialty parameter in the first step when trying to

book a medical appointment.

Table 3: Scenario 2 results.

Application

Average Time to

Complete

Scenario

Standard

Deviation of

Average Times

My CUF (Dermatology)

1m08s 15s

Joaquim Chaves Saúde

(Dermatology)

1m11s 18s

MedClick Mobile

Application

(Dermatology)

1m04s 14s

In this test scenario, results were very similar

across all applications, mainly because users had to

go through every step when booking the appointment.

This confirms the importance of having an option for

the user to search directly for health professionals.

5.2.3 Scenario 3 – Past and Future

Appointments

The third test scenario is simpler than scenario 1 and

2. It was given to the user the simple task of checking

their past and future appointments. This scenario tests

the utility of having a quick access to the patient’s

past and future appointments, accessing it via a main

tab in the main screen of the application.

The times referring My CUF and MedClick

mobile application are mainly the time users spent

logging in because both applications have the

appointments tab quickly accessible and in an

intuitive manner. The MedClick mobile application

has a label below the icon on that tab, however

numerous users pointed the lack of contrast making it

HEALTHINF 2020 - 13th International Conference on Health Informatics

270

difficult to read and quickly identify it. Several users

were completely lost in the Joaquim Chaves Saúde

application, because this tab does not have an

intuitive name and many were looking in the

appointments search section, confirming that having

an option to search inside the tab with the past and

future appointments is a good idea.

Table 4: Scenario 3 results.

Application

Average Time

to Complete

Scenario

Standard

Deviation of

Average Times

My CUF

44s 9s

Joaquim Chaves Saúde

1m08s 15s

MedClick Mobile

Application

38s 8s

5.2.4 Scenario 4 – User Profile Information

The fourth and last test scenario is very similar to the

third one. It is simply asked for users to review their

profile information in the application.

Table 5: Scenario 4 results.

Application

Average Time to

Complete

Scenario

Standard

Deviation of

Average Times

My CUF

42s 13s

Joaquim Chaves

Saúde

46s 14s

MedClick Mobile

Application

37s 13s

Once again, most of the time spent in this scenario

was due to login, and in here the majority of users had

no problems finding the profile tab and completing

the task. It should be noted that in a real-world

scenario, MedClick mobile application saves the user

improving these times.

5.3 Limitations

In the Iterative Testing Methodology, as described in

section 5.1, user created errors resulting in false

results; that made it hard to understand when the

average time spent in each screen was due to a bad

user experience or simply due to user disinterest.

After the failure of the first methodology, a focus

group test approach was adopted with various test

scenarios. This approach also has the limitation of not

testing a broad enough audience.

The authors expect that with the platform fully

functional and deployed to a wide range of users and

patients it will be possible to enlarge the significance

of the results. Namely with a broader audience the

authors expect to verify if users use more the web

platform or the mobile application, if the mobile

application brings new users to the platform and if

they engage more with the platform because of the

marketing efforts, mainly the mobile push

notifications about the location and the history.

6 CONCLUSIONS

A large percentage of customers in most industries

are demanding frictionless booking. Having the

ability to book a medical appointment in any device

is a must have for patients nowadays.

This research develops four major contributions:

i) a comparative analysis of mobile medical

appointments booking applications; ii) the use case

and requirement definition for the health care mobile

marketing process; iii) the Implementation a health

care mobile marketing application; iv) the assessment

of the user experience for mobile marketing.

Regarding the first contribution, this paper

presents a comparative analysis of the functionalities

of 4 mobile medical appointments booking

applications.

This paper proposes a set of use cases and

requirements in order to make available four major

functionalities (booking a medical appointment,

history of medical appointments, alerts for future

appointments, and mobile marketing).

The third contribution of this research is the

development of the mobile application, including the

mobile marketing side (having various notifications

deployed to the user engagement of the user). In the

development of the application, the user experience

was a major concern, using onboarding screens and

the prioritizing use before login. Introducing this

application together with the platform will not only

give more options to the users but will also provide

more features like relevant notifications to the user.

Regarding user testing, through various scenarios,

the application gave satisfying user experience

results, even when not taking advantage of features

like retaining the user login. This supports that the

application would be well received by real world

users.

As a suggestion for future work, besides the

metrics presented in the focus group test scenario in

section 5.2, the application could be tested using a

questionnaire regarding usability, like the System

A User Centred Approach in the Implementation of Mobile Marketing in Health Applications

271

Usability Scale (SUS) questionnaire. Another thing to

be considered when deployed to real patients is the

GDPR compliance, not researched in this work.

During the development of this paper, some

difficulties and limitations were found. One of the

major limitations of this research is that there are

features whose impact can only be measured once the

MedClick application is deployed and used by a large

number of patients. Considering the results presented

in this paper the authors expect the mobile application

marketing functionalities have significant impact in

the healthcare industry.

ACKNOWLEDGEMENTS

This work was supported by national funds through

Fundação para a Ciência e a Tecnologia (FCT) with

reference UID/CEC/50021/2019 and by the European

Commission program H2020 under the grant

agreement 822404 (project QualiChain).

REFERENCES

Apple, 2019. Apple Developer Human Interface

Guidelines, available at https://developer.apple.com/

design/human-interface-guidelines/ - Accessed on

05/10/2019.

Aranyi, G. and van, Schaik, P., 2016. Testing a model of

user‐experience with news websites. J Assn Inf Sci Tec,

67: 1555-1575. doi:10.1002/asi.23462

Berman, B., 2016. Referral marketing: Harnessing the

power of your customers, Business Horizons, 59, 1, pp.

19-28.

Dirin, A., and Laine, T., 2018. User Experience in Mobile

Augmented Reality: Emotions, Challenges,

Opportunities and Best Practices, Special Issue

Advances in Mobile Augmented Reality, Computers

2018, 7(2), 33,

https://doi.org/10.3390/computers7020033

Gana,M., Thomas, T., and Kashif, H., 2017. Consumers’

Value Assessment on Location Based Service

Application as a Mobile Marketing Tool, International

Journal of Business and Applied Social Science Vol.2,

No.3.

Google, 2019. Material Design updates and guidance,

available at https://material.io/design/ - Accessed on

05/10/2019.

Hubert, M., Blut, M., Brock, C., Backhaus, C., and

Eberhardt, T., 2017. Acceptance of smartphone‐based

mobile shopping: Mobile benefits, customer

characteristics, perceived risks, and the impact of

application context. Psychology & Marketing, 34(2),

175-194.

Leppaniemi,M., 2008. Mobile Marketing Communications

in Consumer Markets, University of Oulu.

Martinez, M., and Lecomte, S., 2017.Towards the Quality

Improvement of Cross Platform Mobile Applications,

IEEE/ACM 4th International Conference on Mobile

Soft ware Engineering and Systems (MOBILESoft),

Buenos Aires, 2017, pp. 184 188.

Saint-Exupéry, A., Galantière, L., Gilbert S., 1943.

Airman's Odyssey, New York, Reynal & Hitchcock.

Saude, CUF, 2019. Grupo Cuf homepage,

https://www.saudecuf.pt/ - Accessed on 05/10/2019.

Saude, JC., 2019. Joaquim Chaves Saude homepage,

https://www.jcs.pt/pt/home - Accessed on 05/10/2019.

Shankar, V., Balasubramanian, S., 2009. Mobile

Marketing: A Synthesis and Prognosis, Journal of

Interactive Marketing, 23, 2, pp. 118–29.

StatCounter 2018. GlobalStats statcounter: Mobile

Operating System Market Share Worldwide, available

at http://gs.statcounter.com/os-market-share/mobile/

worldwide - Accessed on 05/10/2019.

Zocdoc 2019, Zocdoc Homepage. https://www.zocdoc.com

- Accessed on 05/10/2019.

HEALTHINF 2020 - 13th International Conference on Health Informatics

272