Evaluation Of Interactive Smart Televisions And Their Usability

Smart TVs and their opportunities for interaction

This paper is based on evaluation of interactive ‘smart’ televisions that will be done with the help of various evaluation methods. Smart TVs offers new conceivable outcomes of cooperation, because of the quirk of the gadget and the nearness of applications. Be that as it may, greater ease of use considers on Smart TV applications are required so as to enhance the nature of the UIs. Along these lines, in this paper the attention is on the connection amongst client and Smart TV through remote control. In detail, the tests will be directed with the clients in view of uses being utilized as a part of Smart TV (Walji et al. 2014). Smart TV, otherwise called Connected TV, is a TV or setup box that can be associated with the web through an Ethernet link or by a remote association with the home system. At the point when associated with the system the TV can speak with different gadgets on a similar system like PCs, cell phones and tablets and pass content between them. The client can likewise download TV particular applications to their Smart TV. Despite the fact that the TV applications accessible today are more similar to cell phone applications however appeared on a wide screen. In savvy TVs, the applications are situated on a TV and in addition the substance are additionally accessible on the TV.

Evaluation is expected to watch that clients can utilize the item and that they like it, especially if the outline idea is new. Moreover, these days clients search for significantly more than only a usable framework, they search for a satisfying and connecting with understanding (Brown et al. 2013). From a business and promoting point of view there are likewise great purposes behind putting resources into assessment, these incorporate fashioners get criticism about their initial outline thoughts, significant issues are settled before the item goes marked down; creators concentrate on genuine issues instead of debating what each different likes or aversions about the item. Hence, there is a need to undertake evaluation of interactive systems. 

In a usability test, the clients are being watched and met from the objective gathering, while they are chipping away at average assignment situations for the item. It is critical that the test members are completely illustrative of the clients of the objective gathering. By watching the members, the ease of use issues can be recognized and examined to decide how the clients encounter the item (Orfanou, Tselios and Katsanos 2015). Furthermore, oblivious intellectual procedures can be envisioned with the assistance of eye following. On a basic level, ease of use testing can be utilized for testing every single specialized item, frameworks and hardware that are furnished with a UI and that should offer a simple and instinctive client encounter.

Importance of usability in Smart TV applications

The testing methods that can be used for this particular study on smart televisions are:

Question Asking Protocol - During an ease of use test, other than letting the test clients to verbalize their contemplations, the analyzers provoke them by posing direct inquiries about the item to understand their mental model of the framework and the undertakings and where they experience difficulty in comprehension and utilizing the framework (Saeedbakhsh et al. 2017).

Performance Measurement - This procedure is utilized to acquire quantitative information about test members' execution when they play out the errands amid ease of use test. It ought to be led in a formal convenience research center with the goal that the information can be gathered precisely and conceivable surprising obstruction is limited (Johannessen and Hornbæk 2014). Quantitative information is most helpful in doing similar testing, or testing against predefined benchmarks.

In Usability Inspection approach, basically specialists and sometimes software developers, users and other professionals examine usability related aspects of a user interface. 

The inspection methods that can be used for the evaluation of smart televisions are as below:

Heuristic Evaluation - A heuristic is a rule or general rule or dependable guideline that can control an outline choice or be utilized to evaluate a choice that has just been made. Heuristic assessment, created by Jakob Nielsen and Rolf Molich, is a strategy for organizing the study of a framework utilizing an arrangement of moderately straightforward and general heuristics.

The general thought behind heuristic assessment is that few evaluators autonomously assess a framework to concoct potential ease of use issues. It is imperative that there be a few of these evaluators and that the assessments be done freely (Nabovati et al. 2014). Nielsen's experience demonstrates that around 5 evaluators more often than not brings about around 75% of the general ease of use issues being found.

Feature Inspection - This examination method concentrates on the list of capabilities of an item. The investigators are generally given utilize cases with the final product to be acquired from the utilization of the item. Each element is broke down for its accessibility, understandability, and different parts of ease of use.

In this approach, ease of use evaluators get data about clients' preferences, dislikes, needs, and comprehension of the framework by conversing with them, watching them utilizing the framework in genuine work or giving them a chance to answer addresses verbally or in composed shape.

Usability testing methods for interactive Smart TVs

The inquiry methods that can be used for evaluation of the interactive smart televisions are described as below:

Field Observation - Human components engineers go to delegate clients' work environment and watch them work, to see how the clients are utilizing the framework to finish their undertakings and what sort of mental model the clients have about the framework (Mirkovic, Kaufman and Ruland 2014). This strategy can be utilized as a part of the test and sending phases of the advancement of the item.

Interviews - In this method, human components engineers detail inquiries concerning the item in light of the sort of issues of intrigue. At that point they talk with delegate clients to put forth these inquiries keeping in mind the end goal to accumulate data wanted. It is great at getting nitty gritty data and in addition data that must be gotten from the intelligent procedure between the questioner and the client.

In an assessment meet, a questioner peruses the inquiries to the client, the client answers verbally, and the questioner records those reactions (Simor et al. 2016). The strategies for talking incorporate unstructured meeting and organized meeting.

TVs in this present day age has an imperative part to play not simply to watch but rather additionally the approach of smart TV's have furnished the clients with adaptability to all the while check email, talk about a film on Facebook or Twitter and read online surveys a short time later to perceive what others consider it (Marcilly et al. 2015). A range of typical task goals that users would use interactive smart televisions have been identified as below:

Multitasking and Simple Usability: It is a typical marvel that a man sits in front of the TV with a portable PC on lap and a cell phone in the hand. While it appears like the image of multitasking, exchanging between gadgets can regularly be diverting and an additional bother. The intelligent brilliant TVs give an extraordinary element to perform multitasking on a solitary screen (Yen, Sousa and Bakken 2014). The clients for the most part make utilization of smart TVs to sit in front of the TV and peruse the web, post reports via web-based networking media and take part in other web exercises on a similar gadget with a smooth exchange.

Easy Convergence: This assignment enables the clients to switch between gadgets with the assistance of smart TVs where they can consistently share content from their cell phone with the brilliant TV and the other way around. The clients can stream any video that they are viewing on the savvy TV to their versatile screen while leaving the room. The clients can watch their most loved show from any edge of the house as long as the gadgets are associated with the assistance of remote (El-Halees 2014). The clients can likewise utilize their cell phone as remote control to work the savvy TVs with a single step.

Inspection methods for evaluating Smart TV usability

Briefing on TV: The client can likewise get ready for a day and that will likewise be easier effortlessly of merging. The clients are additionally ready to plan for a sticky day before they venture out of the house or they can even get news refreshes without escaping their bed. The clients regularly discover it the most energizing element of smart TVs that it can be associated with the caution of their cell phone (Oztekin et al. 2013). The savvy TV switches on consequently and highlights the most recent climate updates and news, and in addition plan through Google logbook with the ring of alert on cell phone of the client.

Customized Experience: For the individuals who need to keep away from the bother of flipping stations, the smart TVs are being furnished with interface that makes it less demanding to get to favored substance. The intelligent board at the base of the screen flawlessly records the top pick, as of late got to and other included substance alongside tabs for online networking stages and different applications (Hasan, Morris and Probets 2013). Rather than moving far from the screen to the menu page, the board advantageously lays out at the base, gives the chance to peruse choices while watching something.

Content Needs: The clients need an easy to understand involvement and simplicity of getting to substance while utilizing their shrewd TVs (Mohr et al. 2015). Consequently, the keen TVs are planned with a board that arranges comes about naturally to coordinate needs of the clients and making it less troublesome.

The intended user group along with their typical characteristics in context to the interactive smart televisions are provided as below:

Student (primary) Characteristics Ranges

Age:	18 – 25 years (Average: 22 years)
Gender:	70% male and 30% female
Course:	Technical studies, Management studies
Study hours:	08 – 10 hours (Average: 09 hours)
Education:	High school to Bachelor’s degree (College)
Technology:	Computer experience and high speed internet connection
Family:	Single

 Household Characteristics Ranges

Age:	26 – 45 years (Average: 32 years)
Gender:	80% female and 20% male
Occupation:	Housewives, Self-employed, Corporate sector
Experience level:	0 – 10 years (Typical: 03 years)
Working hours:	40 hours per week
Education:	High school to Bachelor’s degree
Technology:	Computer experience and internet connectivity
Family:	Single or married (Predominantly married with 1 child)

 Retired personnel’s Characteristics Ranges

Age:	60 – 75 years (Average: 65 years)
Gender:	90% male and 10% female
Job:	Housewives, Self-employed, Corporate sector
Leisure time:	12 – 15 hours (Typical: 14 hours)
Education:	High school to Bachelor’s degree
Technology:	No basic computer experience
Family:	Single or married (with 1 or 2 children)

Adequacy: The client ought to get exact and significant outcomes for their inquiry inquiries. In the event that there are no fitting outcomes, the savvy TV will look with released imperatives until the point that a fundamental pursuit is performed. In the event that still no outcomes, the keen TV will educate the client that no outcomes coordinated the required question.

Effectiveness: As the general population utilizing the savvy TV are searching for something simple to utilized and intelligent with looking and additionally performing different functionalities, quick question reaction times are basic (da Silva, Silveira and Maurer 2015). A question should take close to 5 seconds.

Learnability: The keen TV ought to be entirely direct when endeavoring to locate a specific application. It ought to have a simple to utilize interface went for anybody incorporating those with and without PC encounter.

Inquiry methods for evaluating Smart TV usability

Memorability: The keen TV ought to be simple for visit clients to recall how to utilize and work different applications.

Fulfilling: The primary motivation behind savvy TVs is to furnish clients with experience of wise looking and in addition playing out the functionalities of a PC.

Accommodating: If keen TVs are not useful, it has no motivation to exist, and no one will buy and work it. Consequently it must be valuable, or it will vanish (Kalz et al. 2014).

Agreeable: The brilliant TV ought to be charming to use, as the client should need to every now and again buy and work. On the off chance that it is aggravating or baffling to get the outcomes the client needs, the probability of building up a vast base of standard clients is thin.

The heuristic assessment is a casual technique to assess the interface configuration, by exhibiting it to ease of use specialists. Heuristic assessment is finished by introducing the interface mockup to clients. The assessment is finished with clients and their input is utilized to refine the interface outline.

The essential approach to collaborate with the smart TV interface is the Smart TV remote. At first the application has a solitary menu list at the best. Later the menus are gathered into principle menus and submenus so we can give better route alternatives to various functionalities. Smart TVs depend less on wires and links and more on remote availability (Zapata et al. 2015). Smart TVs incorporate Bluetooth and Wi-Fi capacities, and this enables them to interface and match up with different gadgets and utilize gushing video administrations like Netflix and Hulu. Signal controls enable clients to work the TVs utilizing their body and hand developments set up of pushing remote control catches. The principal regular sort of signal control utilized as a part of keen TVs is controller-based. Keen TVs likewise react to talked orders and inquiries using discourse acknowledgment frameworks. These frameworks in brilliant TVs utilize calculations that perform acoustic and dialect demonstrating.

Conclusion

This work presented the result of an evaluation of Usability of TVs controlled by gesture commands and Smart TVs. Nielsen's heuristics filled in as the reason for the production of assessment measurements, and other were made from the prerequisites of this new worldview of cooperation. The measurements was utilized amid casual assessments of ease of use of the smart TV without the nearness of end clients. Convenience is the level of ease of use of any application. Consequently, the essential concentration of convenience testing is to comprehend the way genuine clients connect with an item and conceivable answers for enhance its outline. In any case, with regards to ease of use in Smart TV Apps, the concentration branches into different viewpoints, for example, center taking care of, looking over, arrange supportability, and back routes. It ought to be smooth and understandable. From the assessment of keen TVs, ease of use can finish assignments precisely giving a consistent client encounter. It is fundamentally used to recognize the unbending nature of any procedure, regardless of whether it is agreeable or not. 

Typical task goals for users of interactive Smart TVs

References

Brown, W., Yen, P.Y., Rojas, M. and Schnall, R., 2013. Assessment of the Health IT Usability Evaluation Model (Health-ITUEM) for evaluating mobile health (mHealth) technology. Journal of biomedical informatics, 46(6), pp.1080-1087.

da Silva, T.S., Silveira, M.S. and Maurer, F., 2015, January. Usability evaluation practices within agile development. In System Sciences (HICSS), 2015 48th Hawaii International Conference on (pp. 5133-5142). IEEE.

El-Halees, A.M., 2014. Software Usability Evaluation Using Opinion Mining. JSW, 9(2), pp.343-349.

Fortes, R.P., Antonelli, H.L. and de Lima Salgado, A., 2016, November. Accessibility and Usability Evaluation of Rich Internet Applications. In Proceedings of the 22nd Brazilian Symposium on Multimedia and the Web(pp. 7-8). ACM.

Goh, K.N., Chen, Y.Y., Lai, F.W., Daud, S.C., Sivaji, A. and Soo, S.T., 2013, April. A comparison of usability testing methods for an e-commerce website: A case study on a Malaysia online gift shop. In Information Technology: New Generations (ITNG), 2013 Tenth International Conference on (pp. 143-150). IEEE.

Grindrod, K.A., Li, M. and Gates, A., 2014. Evaluating user perceptions of mobile medication management applications with older adults: a usability study. JMIR mHealth and uHealth, 2(1).

Hasan, L., Morris, A. and Probets, S., 2013. E-commerce websites for developing countries–a usability evaluation framework. Online Information Review, 37(2), pp.231-251.

Hashim, A.F.M., Hussin, H., Othman, M.H. and Ahmad, S.A.S., 2016. Usability Evaluation of a Desktop Virtual Reality Prototype (DVRP) courseware to enhance knowledge on drug abuse. Journal of Techno Social, 8(1).

Johannessen, G.H.J. and Hornbæk, K., 2014. Must evaluation methods be about usability? Devising and assessing the utility inspection method. Behaviour & Information Technology, 33(2), pp.195-206.

Kalz, M., Lenssen, N., Felzen, M., Rossaint, R., Tabuenca, B., Specht, M. and Skorning, M., 2014. Smartphone apps for cardiopulmonary resuscitation training and real incident support: a mixed-methods evaluation study. Journal of medical Internet research, 16(3).

Marcilly, R., Kushniruk, A.W., Beuscart-Zephir, M.C. and Borycki, E.M., 2015. Insights and limits of usability evaluation methods along the health information technology lifecycle. In MIE (pp. 115-119).

Mirkovic, J., Kaufman, D.R. and Ruland, C.M., 2014. Supporting cancer patients in illness management: usability evaluation of a mobile app. JMIR mHealth and uHealth, 2(3).

Mohr, D.C., Schueller, S.M., Riley, W.T., Brown, C.H., Cuijpers, P., Duan, N., Kwasny, M.J., Stiles-Shields, C. and Cheung, K., 2015. Trials of intervention principles: evaluation methods for evolving behavioral intervention technologies. Journal of medical Internet research, 17(7).

Myers, B.A. and Stylos, J., 2016. Improving API usability. Communications of the ACM, 59(6), pp.62-69.

Nabovati, E., Vakili-Arki, H., Eslami, S. and Khajouei, R., 2014. Usability evaluation of Laboratory and Radiology Information Systems integrated into a hospital information system. Journal of medical systems, 38(4), p.35.

Orfanou, K., Tselios, N. and Katsanos, C., 2015. Perceived usability evaluation of learning management systems: Empirical evaluation of the System Usability Scale. The International Review of Research in Open and Distributed Learning, 16(2).

Oztekin, A., Delen, D., Turkyilmaz, A. and Zaim, S., 2013. A machine learning-based usability evaluation method for eLearning systems. Decision Support Systems, 56, pp.63-73.

Saeedbakhsh, S., Isfahani, S.S., Saber, M. and Yadegarfar, G., 2017. Hospital information system usability of educational hospitals in Isfahan using heuristic evaluation method. International Journal of Educational and Psychological Researches, 3(1), p.69.

Simor, F.W., Brum, M.R., Schmidt, J.D.E., Rieder, R. and De Marchi, A.C.B., 2016. Usability Evaluation Methods for Gesture-Based Games: A Systematic Review. JMIR serious games, 4(2).

Walji, M.F., Kalenderian, E., Piotrowski, M., Tran, D., Kookal, K.K., Tokede, O., White, J.M., Vaderhobli, R., Ramoni, R., Stark, P.C. and Kimmes, N.S., 2014. Are three methods better than one? A comparative assessment of usability evaluation methods in an EHR. International journal of medical informatics, 83(5), pp.361-367.

Yen, P.Y., Sousa, K.H. and Bakken, S., 2014. Examining construct and predictive validity of the Health-IT Usability Evaluation Scale: confirmatory factor analysis and structural equation modeling results. Journal of the American Medical Informatics Association, 21(e2), pp.e241-e248.

Zapata, B.C., Fernández-Alemán, J.L., Idri, A. and Toval, A., 2015. Empirical studies on usability of mHealth apps: a systematic literature review. Journal of medical systems, 39(2), p.1.