ICoICT 2015 - The 3rd International Conference onInformation and Communication Technology

May 27 - 29, 2015Nusa Dua, Bali

PROCEEDING BOOK

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TABLE OF CONTENTS

PAGE

1 Structural Similarity Analysis of Business Process Model Using Selective Reduce

Based on Petri Net ( Niila Syukriilah, Dana Kusumo, Sri Widowati)

1

2 Enhancing Performance of Block Diagonalization Precoding in Multi User MIMO (MU-

MIMO) Downlink ( Fahri Wisnu Murti, Rina Pudjiastuti, Bambang Nugroho)

6

3 Exploring the Roles of Personality Factors on Knowledge Management System

Acceptance ( Wira Prasetya, Muhammad Rifki Shihab, Puspa Indahati

Sandhyaduhita)

11

4 Online Learning and Socratic Method in Increasing Self-Motivation: A Literature

Review ( Salihuddin Md. Suhadi, Zaleha Abdullah, Norasykin Mohd Zaid, Hasnah

Mohamed, Baharuddin Aris, Mageswaran Sanmugam)

17

5 Preliminary Study for Determining Bring Your Own Device Implementation

Framework Based on Organizational Culture Analysis Enhanced by Cloud

Management Control ( Nungki Selviandro, Gede Wisudiawan, Shinta Puspitasari,

Monterico Adrian)

23

6 Mobile OCR Using Centroid to Boundary and Backpropagation Neural Network (

Bakti Anugrah Yudha Pratama, Tjokorda Agung Budi Wirayuda, Kurniawan

Ramadhani, Febryanti Sthevanie)

29

7 Identification of Customer Values in Telecommunication Service Industry A Case of

Postpaid Cellular Customers in Indonesia ( Husni Amani, Dini Alamanda, Grisna

Anggadwita)

35

8 Information System for Depicting Relations Between Banking Customer with Risk:

Study Case in Indonesia ( Aditya Kurniawan)

39

9 Analysis on 900 MHz and 1800 MHz LTE Network Planning in Rural Area ( Ari

Yogapratama, Uke Kurniawan, Tody Wibowo)

44

10 An Efficient Implementation of Sequential Detector in Spectrum Sensing Under

Correlated Observations ( Fiky Suratman, Sigit Jarot)

50

11 Bandwidth Improvement of Square Patch Array-based AMC Using Multiple Slots

Technique ( Achmad Munir, Levy Olivia)

54

12 Scheduler and Voice Recognition on Home Automation Control System ( Syarif

Hidayat, Syahrial Farid Firmanda)

60

13 An Implementation of Digital Advertising Board Using Mini PC ( Denny Darlis, Tengku

Ahmad Riza, Didit Permadi)

64

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14 Increasing Effectiveness of Early Warning Through Smart ICT ( Jan Skrbek, Marián

Lamr)

70

15 Arrhythmia Detection Based on ECG Signal Using Android Mobile for Athlete and

Patient ( Sugondo Hadiyoso, Koredianto Usman, Achmad Rizal)

76

16 Website Design of EMS-SCADA for AC Usage on a Building ( Haris Rachmat, Tatang

Mulyana)

82

17 Prototype of Microcontroller-Based Odometer Reading for Early Warning in the

Vehicle Lubricants Replacement ( Asdi Galvani, Andrian Rakhmatsyah, Giva Mutiara)

88

18 Text Data Compression for Mobile Phone Using Burrows-Wheeler Transform, Move-

To-Front Code and Arithmetic Coding ( Eko Darwiyanto, Heru Pratama, Gia Septiana)

94

19 Dimensionality Reduction for Association Rule Mining with IST-EFP Algorithm ( Boby

Siswanto, The Houw Liong, Shaufiah Shaufiah)

98

20 Implementation and Evaluate the No-Reference Image Quality Assessment Based on

Spatial and Spectral Entropies on the Different Image Quality Databases (

Mohammed Ali, Mohamed Deriche)

105

21 A Photo Composite Detection Based on Eye Specular Highlights Using Pixel-Based

Approach ( Prastyawan Nugraha, Rimba Whidiana Ciptasari, Bambang Pudjoatmojo)

111

22 Face Image-Based Gender Recognition Using Complex-Valued Neural Network ( Sindi

Amilia, Mahmud Dwi Sulistiyo, Retno Dayawati)

117

23 Enhancement of Overexposed Color Images ( Shaveta Arora) 122

24 Emerging Project Based Learning in Flipped Classroom ( Azlina A. Rahman, Norasykin

Zaid, Zaleha Abdullah, Hasnah Mohamed, Baharuddin Aris)

126

25 The Implementation of User Experience Model in Applications Early Childhood

Education Using Hierarchical Task Analysis Method (Case Study: Introduction

Learning to Read) ( Mira Sabariah, Veronikha Effendy, Avian Rinandhi)

132

26 Evaluation of Academic Website Using ISO/IEC 9126 ( Dawam Dwi Jatmiko Suwawi,

Eko Darwiyanto, Martiana Rochmani)

138

27 Social Engagement Analysis in Online Conversation of Indonesia Higher Education

Case Study: Telkom University ( Yahya Peranginangin, Andry Alamsyah)

144

28 Watermarking Scheme for Authenticity and Integrity Control of Digital Medical

Image Using Reed-Muller Codes and Hash Block Chaining ( Dwi Prathiwi, Widi Astuti,

A Adiwijaya, Tjokorda Agung Budi Wirayuda)

151

29 TWINE: Supporting Assessment of Trustworthiness of Web Information Using Linked

Data ( Jarutas Pattanaphanchai, Kieron O'Hara, Wendy Hall)

157

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30 The Detection of DDOS Flooding Attack Using Hybrid Analysis in IPv6 Networks (

Gandeva Bayu Satrya, Rizqi Chandra, Fazmah Arif Yulianto)

162

31 Enabling Multipath Routing for Unicast Traffic in Ethernet Network ( Haidlir Naqvi,

Sofia Hertiana, Ridha Negara)

168

32 A High-Speed Gearbox Based on Phase Independent Architecture for 100G Ethernet

Physical Coding Sublayer ( Weihua Ruan, Qingsheng Hu)

172

33 Performance Evaluation of Adaptive Network Tree Construction Mechanism for

ZigBee Grid Router Network ( Lukman Rosyidi, Riri Fitri Sari)

178

34 Speaker Recognition Implementation for Authentication Using Filtered MFCC - VQ

and a Thresholding Method ( Reza Aulia Sadewa, Tjokorda Agung Budi Wirayuda, Siti

Sa'adah)

183

35 Implementation of Classification and Regression Tree (CART) and Fuzzy Logic for

Intrusion Detection System ( Asry Faidhul Pinem, Erwin Setiawan)

189

36 Gold Price Prediction Using Type-2 Neuro-Fuzzy Modeling and Arima ( Chintya

Christina, Rian Febrian Umbara)

195

37 Seasonal Time-Series Model Using Particle Swarm Optimization for Broadband Data

Payload Prediction ( Arjuna Negara, I Wayan Mustika, Oyas Wahyunggoro)

200

38 Evaluation on Geospatial Information Extraction and Retrieval: Mining Thematic

Maps From Web Source ( Agung Dewandaru, Iping Supriana, Saiful Akbar)

206

39 Concurrent Processing of Increments in Online Integration of Semi-structured Data (

Handoko Handoko, Janusz Getta)

212

40 Source Code Retrieval on StackOverflow Using LDA ( Achmad Arwan, Siti Rochimah,

Rizky Januar Akbar)

217

41 Participatory Design of Interactive TV User Interface for Elderly People in Indonesia (

Via Widyanuri, Johanna Renny Octavia)

221

42 Application of M2M to Detect the Air Pollution ( Putut Andre Besari, Maman

Abdurohman, Andrian Rakhmatsyah)

227

43 Students' Task Related Assessment: Does Knowledge Construction Process Through

CSCL Learning Environment Obliging? ( Suhaizal Hashim, Jamalludin Harun)

233

44 Technology Enhanced Interaction Framework and Method for Accessibility in Thai

Museums ( Kewalin Angkananon, Mike Wald, Lester Gilbert)

239

45 Indonesian Music Fans Group Identification Using Social Network Analysis in Kaskus

Forum ( Immanuel Pandapotan, Andry Alamsyah, Marisa Paryasto)

244

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46 Network Market Analysis Using Large Scale Social Network Conversation of

Indonesia's Fast Food Industry ( Andry Alamsyah, Yahya Peranginangin)

249

47 Reexamining Usability Dimensions: The Case of Social Media ( Almed Hamzah, Fathul

Wahid)

253

48 Conceptual Model of Citizen's Intention Associated to E-Government and Internet

Behavior Why Do Bandung Citizens Follow the Mayor's Social Media? ( Cut Irna

Setiawati, Putri Meuthia Pratiwi MS)

259

49 Spider-Web Topology: A Novel Topology for Parallel and Distributed Computing (

Selvarajah Thuseethan, Shanmuganthan Vasanthapriyan)

264

50 A Perl-based SNMP Agent of Networked Embedded Devices for Smart-Living

Applications ( Yung-Feng Lu, Chin-Fu Kuo, Rong Sheng Wang, Shih-Chun Chou)

270

51 The Tale of Deep Packet Inspection in China: Mind the Gap ( Feng Yang) 274

52 The Effect of Transformative IT Capability on Sustainable Competitive Advantage (

Teguh Widodo)

280

53 Modularizing RESTful Web Service Management with Aspect Oriented Programming

( Widhian Bramantya, Dana Kusumo, Bayu Munajat)

286

54 Particle Swarm Optimization on Follicles Segmentation to Support PCOS Detection (

Eni Setiawati, A Adiwijaya, Tjokorda Agung Budi Wirayuda)

291

55 Design and Implementation of Voice Command Using MFCC and HMMs Method (

Muslim Sidiq, Tjokorda Agung Budi Wirayuda, Siti Sa'adah)

297

56 Design and Implementation of Secure Fingerprint Template Using Key Binding

Scheme and Random Triangle Hashing Scheme ( Erwid Jadied)

303

57 Sentiment Analysis on Twitter Using the Combination of Lexicon-Based and Support

Vector Machine for Assessing the Performance of a Television Program ( Tiara Tiara,

Mira Sabariah, Veronikha Effendy)

308

58 Permutation Codes Via Fragmentation of Group Orbits ( Janos Barta, Roberto

Montemanni, Derek Smith)

313

59 Implementation of GRAC Algorithm (Graph Algorithm Clustering) in Graph Database

Compression ( I Gusti Bagus AS, Kemas Wiharja, Alfian Akbar Gozali)

319

60 A Classification of Polycystic Ovary Syndrome Based on Follicle Detection of

Ultrasound Images ( Bedy Purnama, Untari Wisesty, A Adiwijaya, Fhira Nhita, Andini

Gayatri, Titik Mutiah)

324

61 Enhancing Synote with Quizzes, Polls and Analytics ( Mike Wald, Yunjia Li)

330

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62 A Matheuristic Algorithm for the Prize-collecting Steiner Tree Problem ( Murodzhon

Akhmedov, Ivo Kwee, Roberto Montemanni)

336

63 Speeding Up Mobile Delay-Tolerant-Networks Simulations with CUDA-based Event

Generator ( Akbari Indra Basuki, Muhammad Fajar Sidiq)

341

64 Comparative Analysis of Voice Over Internet Protocol (VoIP) Quality on Priority

Queue (PQ) and Class-Based Queue (CBQ) Management System Using Link-Sharing

Mechanism Setting ( Dodi Wisaksono Sudiharto, Fazmah Arif Yulianto, Adhitya

Nurmansyah Arista)

347

65 Performance Evaluation of Hybrid Parallel Computing for WRF Model with CUDA and

OpenMP ( Ridwan Ridwan, Achmad Imam Kistijantoro, Mahally Kudsy, Djoko

Gunawan)

353

66 Analysis of Liveline Addition as the New Time Constraint and the Earliest Deadline

Earliest Liveline First (EDELF) Algorithm in Real Time System ( Suryo Utomo, Fazmah

Arif Yulianto, Endro Ariyanto)

359

67 Artificial Fish Swarm Algorithm for Job Shop Scheduling Problem ( Dyah Pythaloka,

Agung Toto Wibowo, Mahmud Dwi Sulistiyo)

365

68 Differential Evolution for the Cryptanalysis of Transposition Cipher ( Gia Septiana,

Wahyu Rismawan, Siti Sa'adah)

372

69 Development of Word-Based Text Compression Algorithm for Indonesian Language

Document ( Ardiles Sinaga, Hertog Nugroho, A Adiwijaya)

376

70 Recommender System Based on User Functional Requirements Using Euclidean

Fuzzy ( Zk Baizal, A Adiwijaya)

381

71 A Comparative Study on MBA and Apriori Tecnique ( Warnia Nengsih) 387

72 Towards Data Sovereignty in Cyberspace ( Yudhistira Nugraha, Kautsarina

Kautsarina, Ashwin Sastrosubroto)

391

73 Evaluation of the Online Assessment Test Using Process Mining (Case Study:

Intensive English Center) ( Vinca Aisa, Angelina Prima Kurniati, Yanuar Firdaus Arie

Wibowo)

398

74 RFID Middleware for Fast Clearance in Container Terminal Management System (

Evizal Abdul Kadir, Siti Mariyam Shamsuddin, Sharul Kamal A. Rahim, Sri Listia Rosa)

404

75 Identifying Factors That Influence Student Failure Rate Using Exhaustive CHAID (Chi-

Square Automatic Interaction Detection) ( Riasyah Novita, Mira Sabariah, Veronikha

Effendy)

408

76 Regression-based Parameter Optimization for Binary Output Systems ( Jun Cao,

Huimin Ma)

414

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77 Vomma:Android Application Launcher Using Voice Command ( Muslim Sidiq,

Tjokorda Agung Budi Wirayuda, Siti Sa'adah)

420

78 Godunov Method for Computerized Lung Cancer Cryosurgery Planning with Efficient

Freezing Time ( Dede Tarwidi)

425

79 Optimization of Active Steering Control on Vehicle with Steer by Wire System Using

Imperialist Competitive Algorithm (ICA) ( Machrus Ali, Fachrudin Hunaini, Imam

Robandi, Nyoman Sutantra)

431

80 Using Least-Square Monte Carlo Simulation to Price American Multi Underlying Stock

Options ( Irma Palupi, Indra Sitorus, Rian Febrian Umbara)

435

81 Kretschmer Complex Degree Centrality and Confidence Interval Estimation

Implementation for Validating User Reports on Integrated Disaster Portal and Social

Media Application ( Dodi Wisaksono Sudiharto, Johanes Haposan Napitupulu, Tata

Soemitra Wirasasmita)

441

82 E-Business Framework for Small and Medium Enterprises: A Critical Review ( Panca

O. Hadi Putra, Zainal Hasibuan)

447

83 The National Budget Transparency Initiative At Ministry of Finance in Open

Government Data ( Meldi Rendra, Ilham Cendekia)

453

84 Designing Machine-To-Machine (M2M) System in Health-Cure Modeling for

Cardiovascular Disease Patients: Initial Study ( I Ketut Enriko, Dadang Gunawan,

Gunawan Wibisono)

459

85 American Sign Language-Based Finger-Spelling Recognition Using k-Nearest

Neighbors Classifier ( Dewinta Aryanie, Yaya Heryadi)

464

86 Designing an Integrated Core Banking System for A Medium-Scale Sharia Bank in

Indonesia ( Ari Ridwan)

468

87 Feature Extraction Analysis for Indonesian Speech Recognition System ( Untari

Wisesty, A Adiwijaya, Widi Astuti)

474

88 LCC Application for Estimating Total Maintenance Crew and Optimal Age of BTS

Component ( Judi Alhilman, Judi Alhilman, Andri Suryabrata, Rd. Rohmat Saedudin,

Fransiskus Tatas Dwi Atmaji)

479

89 Redefining E-Learning Readiness Model ( Yanuar Firdaus Arie Wibowo, Kusuma Ayu

Laksitowening)

484

90 Web Based E-Learning System Analysis Using Kansei Engineering ( Ana Hadiana) 490

91 Realistic Facial Animation of Speech Synchronization for Indonesian Language (

Mellia Liyanthy, Hertog Nugroho, Warih Maharani)

495

vii

92 Preliminary Work on Rotation-Invariant Algorithms for Contactless Palm Vein

Biometrics ( Wee Lorn Jhinn, Goh Kah Ong Michael, Tee Connie, Tze Hui Liew)

500

93 A Review for Gait Recognition Across View ( Tee Connie, Goh Kah Ong Michael,

Andrew Teoh Beng Jin)

506

94 Scattered Object Recognition Using Hu Moment Invariant and Backpropagation

Neural Network ( Nelly Indriani Widiastuti, Restu Suhendar)

510

95 Modeling and Numerical Simulation of Solar Cooker with PCM as Thermal Energy

Storage ( Dede Tarwidi)

516

96 Analysis and Implementation of Graph Indexing for Graph Database Using

GraphGrep Algorithm ( Emir Dongoran, Kemas Wiharja, Alfian Akbar Gozali)

522

97 Fractional Fourier Transform for Decreasing Seismic Data Lossy Compression

Distortion ( Hilal H. Nuha, Novian Anggis Suwastika)

528

98 Analysis and Implementation of Tracking Efficient Method to LQ45 Stock Index

Portfolio Optimization ( Ayunda Trisnowianti, Deni Saepudin, Rian Febrian Umbara)

532

99 Comparative Study of Grammatical Evolution and Adaptive Neuro-Fuzzy Inference

System on Rainfall Forecasting in Bandung ( Fhira Nhita, Sekar Kinasih, Sheila Annisa,

A Adiwijaya)

538

100 Pricing Bermudan Option Via Evolutionary Discrete Morse Flow Approach ( Irma

Palupi)

543

101 Thin EM Wave Absorber Composed of Octagonal Patch Array and Its Characteristic

Measurement ( Levy Olivia, Achmad Munir)

547

102 Automatic Detection and Measurement of Fetal Biometrics to Determine the

Gestational Age ( Zaki Imaduddin, Muhammad Akbar, Hilmy Tawakal, I Satwika)

551

103 Monitoring and Controlling of EMS-SCADA Via SMS Gateway ( Rino Anugraha

Anugraha, Tatang Mulyana)

556

104 Application of NFC Technology for Premise Halal Certification ( Evizal Abdul Kadir, Siti

Mariyam Shamsuddin, Sharul Kamal A. Rahim, Sri Listia Rosa)

561

105 Connecting Times: Using Smart Technologies for Enhancing Ancient DownTowns

Experience ( Francesco Colace, Massimo De Santo, Aniello De Santo, Antonio

Picariello)

565

106 Big Data Analytics on Large-Scale Socio-technical Software Engineering Archive (

Shahab Bayati, David Parsons)

568

viii

107 An Overview and Implementation of Extraction-Transformation-Loading (ETL)

Process in Data Warehouse (Case Study: Department of Agriculture) ( Rahmadi

Wijaya, Bambang Pudjoatmodjo)

573

108 Implementation of Decision Tree Using C4.5 Algorithm in Decision Making of Loan

Application by Debtor (casC Study: Bank Pasar of Yogyakarta Special Region) (

Indwiarti Irawan, Yuliant Sibaroni)

578

109 A Solution for Provisioning Reliable M2M Infrastructures Using SDN and Device

Management ( Andreea Ancuta Corici, Ranjan Shrestha, Asma Elmangoush, Giuseppe

Carella, Thomas Magedanz)

584

110 Forest Fire Detection System Reliability Test Using Wireless Sensor Network and

OpenMTC Communication Platform ( Anton Herutomo, Maman Abdurohman,

Novian Anggis Suwastika, Sidik Prabowo, Catur Wijiutomo)

590

111 Autonomous Knowledge Based System for Sensor Network ( Nyoman Karna, Iping

Supriana, Nur Maulidevi)

595

112 (EDsHEED) Enhanced Simplified Hybrid, Energy-Efficient, Distributed Clustering for

Wireless Sensor Network ( Sidik Prabowo, Maman Abdurohman, Bayu Erfianto)

600

113 Regularized Sphere Decoding Techniques for Data Transmission Systems ( Mahmoud

A. M. Albreem)

605

114 Robust and Efficient Implementations of Angle-Based Mesh Smoothing on the GPU (

Yanlin Zhang, Gang Mei, Nengxiong Xu, Bo Peng)

609

115 Design and Implementation of Regulatory Systems of Light, Temperature and

Humidity Indoor Gardens Using Microcontroller ( Ariando Saragih, Angga Rusdinar,

Rita Purnamasari)

615

116 Power Play in the Institutionalization of an eProcurement System: A Tale From

Indonesian Local Government ( Fathul Wahid)

619

Participatory Design of Interactive TV User Interface for Elderly People in Indonesia

Via Widyanuri1 and Johanna Renny Octavia2 Industrial Engineering Department Parahyangan Catholic University

Bandung, Indonesia viawidyanuri@gmail.com1; johanna@unpar.ac.id2

Abstract—The aging process certainly brings impacts on various aspects of elderly people's life, including social, economic, and health. Basically, elderly people usually spend most of their time staying at home and watching television. The development of interactive television can not be easily accepted by elderly people because of various reasons. This study focuses in designing an interactive television user interface for elderly people in Indonesia. Participatory design was used as an approach in this study. This study involved six elderly people as dedicated participants throughout the design process and who were selected based on several criteria including live independently, familiar with using television, and frequently communicate with their family or relatives. Low-fidelity prototypes (a wizard-of-oz prototype and a mock up prototype) were built based on the selected concept. The prototype evaluation has informed some suggestions to further improve the design since there were users who still experienced difficulties in using the user interface.

Keywords—interactive TV; elderly; participatory design; user interface

I. INTRODUCTION The proportion of elderly population which has reached

over seven percent, indicates that Indonesia has begun to enter the aging population. The increasing number of elderly people indicates that life expectancy in Indonesia is higher from year to year. Naturally, every human being will experience the aging process. The aging process can be slowed by stimulating the brain through a group activity for the elderly. Actively participating in social activities and interaction with others is known to help stimulate cognitive functions and slow the occurence of dementia. The access to the mass media also has an effect on it. According to the national statistical center of Indonesia, the activities of accessing mass media that most elderly do is watching television (79.83 %) and listening to radio (16.72 %).

Television is one of the most influential media in the life of Indonesian people, especially for the elderly. The development of interactive television combined with the internet technology makes the access to the mass media easier. The users can be more entertained with more interactive television and equipped with various features which can support the daily activities, especially for users who live independently. Elderly people living independently sometimes has a particular concern or

need, for example a study shows an idea to design a caring system for the elderly who choose to live independently at home [1]. The caring system consists of a videophone applied to the television, which is used to evaluate the physical and psychological health of the elderly. However, the elderly people have difficulties in keeping up with the development of the technology, especially the elderly people in Indonesia. Limited skills and the decrease of cognitive functions can be barriers for the elderly. Therefore, this paper describes a study to design an interactive TV user interface for elderly people in Indonesia.

II. METHODS Participatory design is the antithesis of traditional design, in

which designers exhibit their own expertise [2]. The key attribute of participatory design is the involvement of end users in the design process, from defining user requirements to conducting prototype trials [3].

The design process was guided by the interaction design lifecycle model [4]. Figure 1 shows the interaction design lifecycle model, which involves four phases: establishing requirements, designing alternatives, prototyping, and evaluating.

Fig. 1. Interaction design lifecycle model

2015 3rd International Conference on Information and Communication Technology (ICoICT)

978-1-4799-7751-2/15/$31.00 ©2015 IEEE 300

III. DESIGN PROCESS

A. User requirements To establish the user requirements of an interactive TV user

interface for elderly people, we conducted interviews with six Indonesian elderly as dedicated participants throughout the design process. They were five females and 1 male with the age range from 62 to 70 years old and were selected based on criteria such as live independently, familiar with using television, and frequently communicate with their family or relatives.

Eighteen requirements were identified and rated by the elderly. Table I shows the identified user requirements of a interactive TV user interface for elderly people in Indonesia.

TABLE I. USER REQUIREMENTS

No Identified needs

1 Interactive TV user interface helps the elderly to automatically turn off the TV

2 Interactive TV user interface helps the elderly to easily use the TV remote

3 Interactive TV user interface provides easily known icons

4 Interactive TV user interface accommodates the elderly to observe the house situation

5 Interactive TV user interface helps the elderly with user instructions

6 Interactive TV user interface helps the elderly to save information

7 Interactive TV user interface helps the elderly to be reminded of their daily schedules

8 Interactive TV user interface accommodates the elderly to find information online

9 Interactive TV user interface accommodates video call

10 Interactive TV user interface shows contact information with picture

11 Interactive TV user interface helps the elderly to easily choose the channel

12 Interactive TV user interface accommodates the elderly to communicate via message and phone call

13 Interactive TV user interface accommodates the elderly with photo content

14 Interactive TV user interface helps the elderly to find and listen to a song

15 Interactive TV user interface accommodates the elderly to record and rewind TV program

16 Interactive TV user interface is equipped with a lockable remote

17 Interactive TV user interface accommodates the elderly to share information and contents

18 Interactive TV user interface supports the elderly to play simple games

After establishing user requirements, a persona, scenario and a storyboard were developed to guide the design process further and also give insights about the user group characterictics.

B. Generating design concepts The design process was continued to the process of

designing alternatives. Figure 2 describes the situation of the design workshop followed by four students. The students were

undergraduate students in their last year of their study and had background and experience in interaction design courses.

Fig. 2. Design workshop

First, the persona and scenario were introduced to the students participating as designers in the workshop. Then, the user requirements were also revealed to the students. Afterwards, each student was asked to sketch the user interface as a design concept.

Four alternatives of design concepts were resulted in the design workshop. To select one final design concept, participants were asked to rank each other design. Concept 2 was selected as the final design concept based on the highest total rank score.

C. Prototyping The selected design concept was further refined and

developed into a low-fidelity prototype, as depicted in Figure 3 and Figure 4. The low-fidelity prototypes of the interactive TV user interface for elderly are the followings: a wizard-of-oz prototype to show the interfaces in television (Figure 3) and a mockup prototype to show the physical of the TV remote (Figure 4).

2015 3rd International Conference on Information and Communication Technology (ICoICT)

978-1-4799-7751-2/15/$31.00 ©2015 IEEE 301

Fig. 3. Prototype of the interactive TV user interface

Fig. 4. Prototype of the interactive TV remote

D. Prototype Workshop After creating the initial prototypes of the interactive

television user interface, a prototype workshop was conducted to introduce the prototype to the elderly. At this phase, in addition to presenting a demo of an early prototype, the participants also contributed to the completion of the prototype.

As shown in Figure 5, a prototype workshop was conducted with five Indonesian elderly people who live independently at their home with or without their partner.

Fig. 5. Prototype workshop

From the prototype workshop, we obtained some feedback from the elderly to further improve the prototypes, as follows:

• Adding information to the schedules list and icons on the initial menus.

• Changing interfaces background.

• Adding information to the ‘TV’ menus.

• Improving the icon emoticons in messages notification to ‘kirim’ buttons.

• Adding colors background on the ‘CCTV’ menus.

• Adding color background and informations on the ‘Lagu’ menus.

• Adding background color to shows mark options in the ‘Lainnya’ menus.

E. Evaluating To evaluate the prototype, we carried out usability testing

with six Indonesian elderly. We asked the participants to perform five task scenarios with the help of the prototype. The task scenarios include the task of: (1) select a television program, (2) play a song, (3) watch the house through cctv, (4) add details of an activity schedule, and (5) make a video call.

Quantitative measures and qualitative measures were collected to gain user feedback and find out whether or not the built prototypes already meet the user requirements. Table II shows the results of these quantitative and qualitative measures with regard to the user’s performance (i.e. number of error and types of errors).

2015 3rd International Conference on Information and Communication Technology (ICoICT)

978-1-4799-7751-2/15/$31.00 ©2015 IEEE 302

TABLE II. USER PERFORMANCE

Performance measures Task Number

of error Type of error

1: Select a TV

program 4 Pressing wrong button for changing

television program (4)

2: Play a song 1 Pressing wrong navigates button

3: Watch the house through CCTV

- -

4: Add details of an activity schedule

1 Pressing wrong button for choosing the date.

Pressing ‘on/off’ for ending calls. Choosing ‘Telepon’ features not ‘Kontak’ features. Pressing ‘OK’ buttons before choosing the contact.

5: Make a video call 4

Pressing right navigates and ‘OK’ button for ending calls.

We also asked the participants to rate their subjective preference on several statements (on a scale 1 to 5, 1 fully disagree and 5 fully agree) regarding the prototype of television interface. Table III shows the subjective preference results obtained from the questionnaires given to the participants.

The analysis of the evaluation results showed that the interactive TV user interface prototype still needs some improvement such as adding labels in the schedule feature, adding signs and changing the information in the menu ‘TV’.

TABLE III. SUBJECTIVE PREFERENCE

No Statement Average

1 Television interface is easily recognizable 3.67

2 Interactive TV user interface is easy to use 3.50

3 The colors on the display is unsightly and not tedious 3.67

4 Interface menus of the interactive TV are easily recognizable 3.67

5 Interface menus of the interactive TV are easy to remember 3.67

No Statement Average

6 Symbols on the interactive TV user interface are easily known 4.00

7 It is easy to make a selection of the television program with 'TV' features. 3.17

8 It is easy to listen to a song with 'Lagu' menu 4.00

9 It is easy to do home monitoring with 'CCTV' menu 3.67

10 It is easy to add a schedule with 'Jadwal' features. 2.83

11 It is easy to communicate with a contact through video calls 3.50

12 TV remote is easy to use 4.00

IV. CONCLUSION In this study, we have designed an interactive TV user

interface for elderly people in Indonesia through the participatory design approach. Four phases of the interaction design lifecycle model have been conducted with the help of six Indonesian elderly people who live independently, familiar with using television, and still communicate with their family or relatives.

The prototype evaluation with the help of the low-fidelity prototypes, i.e wizard-of-oz prototype for the TV interface and mockup prototype for the TV remote, has informed some suggestions of improvement. Further design improvements are necessary since there were still users who experienced difficulties in using the interactive TV user interface.

REFERENCES

[1] J. Shen, C. Zhang, and C. Jiang, “TV-based caring system for the elderly in the smart home environment”, China, vol. 2013, May 2013.

[2] Y. Reich, S. L. Konda, I. A. Monarch, S. N. Levy, and E. Subrahamanian, “Varieties and Issues of Participation and Design”. Vol. 17, pp 165-180, 1996.

[3] O. Demirbilek, “Involving the elderly in the design process: a participatory design model for usability, safety, and attractiveness”, Ankara: Bilkent University, 1999.

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