Service Selection Strategy in Car Maintenance Using Product Service System (PSS) and Quality Function Deployment (QFD)

Product bundling is a strategy by selling two or more products in one package and one price. Bundling has become an effective and profitable strategy. But bundling must still meet the needs of consumers themselves. In this study, the researcher attempted to create a desired service by combining available services and products into a bundling / service pack with the Product Service System (PSS) and Quality Function Deployment (QFD) method to fullfil the consumer's wishes. The 10 factors of purchase are cost, quality, variance, innovation, extra care, practical and efficient, brand image, prizes, promotions / discounts, and trends, from 35 respondents have interest rate at cost (3.94), quality (3.88) , 3.23), practical and efficient (3.34), brand image (2.22), prizes (3), promotions / discounts (3.65), and trends (1.8). From the voice of customer or consumer desire then made some bundling PSS to be able to meet consumer desires. Among fix murmer, fix pasti asli, fix canggih, fix tahun baruan, fix santai, fix ketolong, fix nyaman, fix bersih, fix LCGC, fix sejuk, fix total, fix aman, fix radiator. From the weighting results obtained 10 bundling PSS to be tested in relation to the fulfillment consumers needed by looking at the relationship between consumer desires and bundling PSS offered by the company with the QFD method. From the results of processing and research, the results are fix murmer (11.7%), fix pasti asli (14.1%), fix canggih (7.4%), fix tahun baruan (9.4%), fix santai (10.8%), fix ketolong (4.7%), fix nyaman (11.2%), fix bersih (9.9%), fix LCGC (14.8%), dan fix total (6.1%). The conclusion that PSS bundling Fix LCGC becomes an option to be proposed as a bundling of PSS that can satisfy the consumer's desire with a value of 14.8% of all PSS bundling tested. Keywords— Product and Service System; Quality Function Deployment; PSS; QFD; Product; Service.

INTRODUCTION Product bundling is a strategy that selling two or more products in one package and one price. Bundling has become an effective and profitable strategy in many circumstances. There are several reasons why companies do bundling products such as cost efficiency, market opportunities to increase profits, and competitive strategies. The benefit of bundling is package has more value than the number of each unit, bundling provides simplicity and ease in choosing among various options, bundling can solve problems for consumers, bundling is usually complementary to be more useful, bundling can attract attention or even controversy. In this study collaboration with a vehicle maintenance service provider company, trying to find out consumers needs through a questionnaire, or ussually called the voice of customer. The company try to provide car maintenance services to suit the consumers' wishes. So in this research will use Product Service System (PSS) method and supported by Quality Function Deployment (QFD) to test the strength of relation between consumer desire (needs) and solution offered (hows). With so expected the company can provide car maintenance services that meet the criteria of consumer desires. Another advantage of bundling these products and services is increased cost efficiency, increased profits and the ability of companies to survive in the automotive business competition.

II. METHODOLOGY A. Product Service System
Product and Service System (PSS) is a business model that provides products and services in a cohesive manner. The PSS model emerges as a means to enable collaborative consumption of products and services (Piscicelli, 2015). A product and service system can be defined as an intangible product and an intangible service combined into an entity that can meet consumer needs well (Tischner U, 2002).
Unlike traditional product-focused, PSS combines products and services to meet consumer needs. PSS can also be called a smart product (Cees Van Halen., 2005).

B. Quality Function Deployment
Quality Function Deployment (QFD) is also known as quality house. Initially QFD was created in 1966 in Japan to help transform the voice of customer (VOC) into product characteristics that will be developed by the engineer (Akao, 1994). According to Dr. Yoji Akao (1994) a method for transforming user requests into a design quality to spread function forming quality and deploy methods to achieve design quality into systems, component parts, and specific elements in the manufacturing process. VOC is a term used to symbolize the process of finding out what consumers really want or expect about a product. VOCs are usually used when creating new products.

C. Product
Products are goods or services that can be traded. In marketing, a product is anything that can be offered to a market and can satisfy a desire or need (Kotler, 2008). In the retailer level, the product is often referred to as a merchandise. In manufacturing, products are purchased in the form of raw goods and sold as finished goods. Products in the form of raw goods such as metal or agricultural products are often referred to as commodities.

D. Service
Excellent service to consumers is a must if we do not want to be shifted from the competitive world of business. Increasingly savvy consumer behavior has put the quality of service at the top of the line beating the quality of products / services in terms of consideration to use / purchase of goods / services. Moreover, the current access to consumer complaints has been widespread, if initially only on a complaint letter posted on the company, the current consumer complaints can be written anywhere. Starting from national newspapers, mailing lists, and various other social media. Of course, if one consumer alone is disappointed with the service provided, the news will quickly spread so widely that it can be fatal for the entrepreneur itself.

E. Business Strategy
This business strategy is often called a functional business strategy because it is oriented to management activities, such as marketing strategies, production or operational strategies, distribution strategies, organizational strategies, resource management strategies and strategies related to financial management.

III. RESULT AND DISCUSSION
Through questionnaire then performed data processing to get importance to customer value, make PSS design, look for SWOT and excellence of each PSS design, up to HOQ manufacture and produce one product and service proposal that can be considered to be applied.

A. Collecting Data
Qualitative data collection is done by giving questionnaire to consumer. Questionnaire consists of 10 questions relating to the desire of consumers, ranging from economic factors to technical factors obtained from the results of interviews and observations in the field. In this research, create a PSS design by combining product and service, in Table 2 and Table 3 the list of product and service

B. Product Service System (PSS)
The data obtained then processed into a PSS design, PSS design is used to meet the desires of consumers in a service. There is 13 pss designs proposal in this research.

C. SWOT Analysis
From 13 proposed pss designs will be made swot analysis, then from 13 pss the design is reduced to 10 pss designs to be proposed and tested into the house of quality (HOQ).