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1. Introduction

Innovation management has become a need for researchers and firms to stay in the competition more than ever before, in which economical environment of firms, market dynamics, technologies have been changing rapidly (Drejer, 2002). Besides, it is really essential nowadays that firms should not only be innovative, but also be more innovative than their competitors (Schilling, 2005). In my opinion, understanding the process of innovation management from beginning to end may facilitate finding more innovative solutions than competitors. Since many innovative ideas may fail to commercialize because of wrong attempts done in the process (Schilling, 2005). In this report, I will discuss the innovation process first by analyzing definitions of product, process and service innovation and their relations between each other. After that, I will analyze sources of innovation to understand where the ideas come from and how they are linked to product, process and service innovation. Then, I will talk about the relationship between innovation and knowledge sharing, which has a significant effect to find innovative ideas. Afterwards, I will continue to describe Stage-Gate model to comprehend how companies adopt innovative ideas and discuss team types as these teams are used widely in an innovative processes. Lastly, I will argue Stage-Gate model in-depth to figure out level of its innovativeness for the firms and product, process and service innovation, which I believe the process itself will help companies to commercialize innovative ideas.

2. Reviewing Innovation Management

2.1. Product, Process, and Service Innovation

Product, process and service innovation have definitions differentiating each from others. Product innovation is about improving the tangible products in different levels, which can be seen as incremental improvements, additional features to product families, future products and inventive products (O'Sullivan and Dooley, 2009). Process innovation is about integrating innovation to key processes of the business, and it has a significant effect on not only decrease in cost and time, but also increase in quality and flexibility (Davenport, 1993). Service innovation can be defined in two ways, adoption of novel services to the new or existing clients, and providing existing services to the new client (Damanpour, Walker and Avellaneda, 2009). Despite their distinctive definitions, it can be considered that these innovation types have similarities and differences. I will discuss them comparing product and process innovation, and product and service innovation.

For the product and process innovation, they can benefit from each other in some cases. The process innovation can have an accelerator effect on product innovation of a firm by decreasing the errors and increasing the quality, or vice versa (Schilling, 2005). For example, a new production method is found for curing hair loss by the R&D department of a medical firm, and the new product is created with the help of this process. It means that new developments in the process innovation not only speed up the process, but also help the firm create radical innovations, which makes the final product innovative as well. Moreover, as Schilling (2005) states in the UPS example; in which more effective distribution system is seen as a product innovation by the firm, but a process innovation by the customers; product and process innovation can be perceived differently from different customer segments.

Moreover, as it was stated in the Lecture 2, product and service innovation have differences in terms of intangibility, simultaneity, and perishability (Dolfsma, 2015). According to O'Sullivan and Dooley (2009), because the product innovation is tangible, the involvement is less than the service innovation, where it finishes after purchasing the product; service innovation continues simultaneously after the purchase, which requires high customer involvement. Also, service innovation cannot be stored like product innovation in terms of perishability (Dolfsma, 2015). For instance, Samsung smart phone is perceived by customers as a tangible product, in which customers keep their phones with them all the time. However, Android system used in these phones are perceived by customers as a service, where they expect continuous development after they buy the product. It can be inferred that product and service innovation are linked to each other and they can be used in tandem for the same concept to be more innovative.

2.2. Sources of Innovation

Product, process and service innovation may require ideas from different sources. In general, innovative ideas come from two sources, internal and external sources. Internal sources as employees and R&D departments of firms,  external sources as customers, non-profit communities, research development of universities and government, suppliers, competitors and other nations (von Hippel, 1988). Besides, although the firms are the ones commercializing the innovative ideas, these ideas do not directly come from customers or organization, but they come from transferring the information from one to another (Schilling, 2005). I want to discuss the usage of these sources in terms of product, process and service innovation.

In the product innovation, there are some links between different groups. In my opinion, relationship between users and manufacturers deserve to be discussed. Users and manufacturers transfer the information to each other with several ways, which might be customer surveys prepared by the manufacturers, field surveys done by engineers and scientists, or in-house demonstration surveys done by the customers in the manufacture, and this has scientific benefits for the customer whilst commercial benefits for the manufacturer (Riggs and von Hippel, 1994). I believe, to sustain product innovation, especially including customers to idea generation process have significant importance. They are the ones who will use the product and if manufacturers fail to provide innovative, creative and real solutions, the product will not be commercially successful. For example, home appliances company want to develop a new tea maker, but they need to understand customers' changing needs and problems related to existing ones. If customers their own solution to prepare herbal tea, for instance, manufacturers need to consider about it, if they want to be commercially successful.

In the process innovation, there are different links need to be considered in addition to links between customers and manufacturers. Davenport (1993) mentions that firms can develop innovative process by linking customers, and benchmarking. Although focus groups and surveys can be done with the customers it is more difficult than product innovation to find good ideas for innovative process (Davenport, 1993). I think for the process innovation, knowledge is an important factor, but customers may not have a knowledge and  be aware of innovation process. Secondly, firms can get innovative ideas from competitors or firms in different sectors by collaborating and keeping updated, such as improving order management process by benchmarking video conferencing in J.C. Penney fashion stores (Davenport, 1993).

In the service innovation, collaborating with customers, other firms, employees can be considered as sources (Ordanini and Parasuraman, 2010). According to findings of Ordanini and Parasuraman (2010), collaborating with business partners and customers have a significant role, where they give the example about how the comments of hotel customers can improve the service design and how this improvement inspired other business partners to improve their services. Moreover, ideas can come from the inside. For example, experiences of the employees can lead to service innovation (Ordanini and Parasuraman, 2010).

2.3. Innovation and Knowledge Sharing

As it is discussed in the previous part, innovative ideas may come from the outside of the firm, and sometimes inside of the firm. As van der Eijk (2015) discusses in the Lecture 6, if ideas are gained from outside as well as outside, it is called open innovation; whilst if the ideas are developed only in inside of the firm, it is called close innovation. As it is discussed in the lecture and previous part, open innovation, that enabling knowledge sharing, may be seen as a key for successful ideas, because formal and informal networking also have an importance nowadays (van der Eijk, 2015). I will discuss advantages and disadvantages of open innovation, and then importance of networking.

Advantages of open innovation are reducing cost for R&D, faster improvement for the development of the company, collaborating with customers, targeting true market, creating synergy from ideas inside and outside, and viral marketing (van der Eijk, 2015). Moreover, in my opinion, open innovation may help firms to understand the real problems of customers. With knowledge sharing firms have better ideas about what is the need of market, and they can use this knowledge to create more sustainable solutions. On the other hand, disadvantages of open innovation are losing competitive advantage by sharing knowledge, revealing unintentionally confidential knowledge, control problems because of complexity, difficulties in adapting external innovation strategies (van der Eijk, 2015). To avoid problems, firms need to find good solutions, where they can be organized more when collaborating. For example, they can create teams to control the system more. Also, when they are cooperating they can make detailed contracts with firms not to reveal information.

Although knowledge sharing create innovative ideas, it is difficult for the firms to get the ideas inside and outside, where formal networking including meetings, reports, team works, training programs, and IT systems is used (Ipe, 2003). Also, using informal networking consisting of talking, listening, discussing in related activities like conferences, phone calls, has an importance to get ideas (Kobayashi, 1995). Still, companies may need to find out how to get the ideas from the employees as an outcome of networking. To encourage them, they may make internal and external competitions, and create teams to get the ideas.

2.4. Adoption of innovation: Stage-Gate Model

After discussing the ways to get innovative ideas, it is important to go to the next stage for commercialization, which is to adopt these ideas to benefit from them commercially. As Schilling (2005) discusses, one of the common methods to adopt ideas used by researchers and managers is using go/kill decision points. Stage-Gate Model by Robert G. Cooper is one of the methods with these points, especially used for new product development  (Cooper, 2001). Therefore, I will review this model in this part.

Main characteristics of this model is to have five stages with defined plans and activities, and five gates with defined criteria, visible deliverables, outputs for go/kill decision making, e.g. Figure 1 (Cooper, 2008, p. 215). Each stage includes involvement of  project team or leader to carry the concept to next stage (Cooper, 1990).

Figure 1: Typical Stage-Gate Model, Robert Cooper, 2008, p. 215, retrieved from http://onlinelibrary.wiley.com/doi/10.1111/j.1540-5885.2008.00296.x/pdf

Cooper (1990) explains the process as following:

Gate 1: The first kill or go decision is made in this gate as an initial screening. The criteria to make go decision are decided by the firms in terms of their strategy, opportunity cost of the idea, its competitive advantage and so on (Cooper, 1990).

Stage 1: It is considered as a low-cost stage, where some preliminary and secondary research, such as user focus groups, library research to understand the feasibility of the project and the market need, potential, and so on (Cooper, 1990).

Gate 2: Evaluation is done by using the information collected in Stage 1. Firms again assess their criteria including basic financial calculations to give go or kill decision.

Stage 2: The concept development finishes in this stage. More detailed and technical analysis is done in this stage. It includes to analyze requirmenets related to operational process, like manufacture, marketing, and financial analysis (Cooper, 1990).

Gate 3: This gate is used to understand whether the concept is worth to invest heavy money. The assessment is done according to data collected in Stage 2 (Cooper, 1990).

Stage 3: It includes finalization of the concept in a very detailed way, where business and operational plan, a new financial analysis is done (Cooper, 1990).

Gate 4: This gate is used to reassess the concept to understand their degree of attractiveness and new financial analysis (Cooper, 1990).

Stage 4: It is the time to test whole concept in terms of operational, commercial and financial ways. The idea is prototyped and tested and financial analysis is revised again before the launch (Cooper, 1990).

Gate 5: After this gate, process cannot be killed. For the decision making, financial analysis has a significant role, and also other date collected in Stage 4 is used for the assessment (Cooper, 1990).

Stage 5: It is the implement phase in terms of Marketing launch and operational plan.

Post implementation review: After commercialization, the concept is reviewed and data is created to use for the future projects (Cooper, 1990).

I will discuss Stage-Gate model more in the in-depth research.

2.5. Team types

As I discussed in previous parts, collaboration is one of the keys for innovation. Teams, used for different purposes such as cross-functional teams in Stage-gate model,  can be used to manage collaboration and innovation. Also, during idea adoption process, companies may need to use teams. Therefore, team types are another important topic to be discussed. I will discuss four team types, functional team, lightweight team, heavyweight team, and autonomous team, one by one, as we discussed in the Innovation Management lectures and tutors.

In the functional teams, each department of the firm works separately, where there is neither strong connection between departments, nor project manager (Schilling, 2005). As Schilling (2005) argues functional teams can be used for derivative work. I agree with this as derivative work do not require many creativity and risks on it. Also, they are really beneficial for the works with technical expertise for their department, which means tasks done by these teams are independent from other departments and this may harm unification of the company (Clark & Wheelwright, 1992). However,

In the lightweight teams, similar to functional teams, members are still from the same department, and junior or middle manager leads them, in which members give importance to their regular work more (Schilling, 2005). Although these teams are more organized than functional teams, there is a still problem of misconnection between departments (Clark & Wheelwright, 1992). These type of teams may help project manager or leader to show themselves, if they achieve a good work they can be appreciated from the firm. Still, there is chance that these leaders may be ignored (Clark & Wheelwright, 1992), because employees may not see the team task priority.

Heavyweight teams are senior project manager and members from different departments gather together to work full-time (Schilling, 2005). Because these teams are temporary, there may not be long-term development for members in terms of their career (Clark & Wheelwright, 1992). Still, these teams has communication between departments and are more organized than previous ones (Schilling, 2005). In my opinion, because of cross-relations between departments, it is more easy to  share knowledge and it is something that improving the culture of companies.

In the autonomous teams, senior project manager and members from different departments are assigned to work together with the power of using resources from all departments, and they almost work independently from the firm (Schilling, 2005). Although they are really effective for the radical innovations, it may be difficult to adapt new product developments to the culture of the company (Clark & Wheelwright, 1992).  

I think this functional and lightweight teams do not really facilitate to generate innovativeness, because exchange of knowledge is so difficult between departments.However, heavyweight and autonomous teams helps teams to innovate. Autonomous teams have a chance to generate something really creative and novel, so they may be better option for radical innovations. However, heavyweight teams can be seen as more consistent teams than autonomous one, therefore, they can work really well for incremental innovation.

3. Innovation and(Innovativeness of) Stage-Gate Model

So far, I discussed five main issues related to innovation and its relations to different topics, and my main aim was to understand how to manage innovation in a practical way. When I reviewed Stage-gate model, which may be seen as one of the effective tools to implement innovation, the question occurred in my mind about level of innovativeness of the model. I will argue this topic in this chapter.

Before discussing the arguable issues of this model, I want to point out some of its advantages. Stage-gate model allows companies not only to save time, but also to analyze the same process in different aspects with cross-functional teams in the same time (Cooper, 1990). Also, it is a simple and visible process, which is easy to adapt for companies (Cooper, 1990). Therefore, in my opinion, this model allows companies to implement innovation in a more organized way, and this model decreases the risk of failure as gates provide companies to question the concept in several times, where they have a five chance, or gates to kill the concept. However, as a designer, inflexibility of this model makes me think that to what extent this model allows companies to find creative and innovative ideas, especially in radical innovations.

To begin, first question came to my mind is who should be in charge or decision makers in this model. Although the system use certain rules and regulations defined by the companies, gate-keepers, leaders, and teams worked in this model decide whether they kill the concept in gates, in which they may misread the concept (Cooper, 2009). In general, senior managers having access the company sources with the cross-functional teams and project leaders are gatekeepers (Cooper, 2009). Gatekeepers generally have a limited time that may lead to not giving importance to gate meetings, and sometimes their decisions may be subjective because of their personal mindsets , in other words they do not give enough consideration (Cooper, 2008). Similarly, I think another issue may be derived from the fact that many of the senior managers may come from the business background, little from engineer background. Still, it is disputable that whether they have the creative and innovative mindset to make the judgment. As van der Eijk (2015) argued in the lecture 4, innovation is bringing invention into commercialized way, where inventions require creative thinking (Becker and Whisler, 1967). Therefore, I think it is important that gatekeeper teams have a creative or design mindset. This may be done by giving them some design thinking trainings, before they start to work as gatekeepers. Another way may include having members with more charge in teams with these skills, in which they may reflect their thinking on decision-making process in gates.

Moreover, companies may construct a very bureacratic Stage-gate models, where deliverables prepared in stages may be too wide and too much for gatekeepers, trying to adapting every activity to each stage (Cooper, 2008). These kind of attitudes may complicate the process. I think, to find innovative ideas, companies should give really importance to have a clear model. Maybe it may take time for them to prepare the model, still it will reduce the errors and because gatekeepers do not need to worry about bureacratic problems, they can easily focus on the developing the concept.

Furthermore, whether this model create innovative solutions only in product innovation or it has an innovative effect on process and service innovation are one of the contested issues. In my opinion, it may be hard to adapt five-phase Stage-Gate model to all types of innovations. However, as Cooper (2009) argues, there is no more one model anymore, and there are modified  Stage-gate models applied by companies work for research, process and platform developments. As it is seen in Figure 2 (Cooper, 2008, p. 223), there are next generation stage gate models: Stage-Gate Xpress model can be used for more moderate projects abd Stage-Gate Line can be used for small projects, which makes the process more flexible and adaptable than before. Therefore, it can be said that with this modified models, companies can generate innovative ideas for different innovation types. For example, according to results of research done by Ettlie and Elsenbach (2007), they found that some companies use modified Stage-Gate models for the process developments. Also, in service innovation, this modified models can be seen as a good method to generate new service designs for companies, in which companies can work in a more organized way and it decreases the error during development (de Brentani, 2001). As a result, it can be assumed that different types of Stage-Gate models can be used for different developments, but still companies need to be really careful about which model they need to adopt. For example, if it is used for process innovation, companies may need to focus on other things in stages rather than market needs, or it may not need to be five stage for them, where they can save time. For the service innovation, maybe post-implementation stage may need to have more importance as service design might have incremental developments after launching them. Besides, for incremental developments on the same service, companies may not need to start over in Stage-gate process.

Figure 2: Next Generation Stage-Gate Model, Robert Cooper, 2008, p. 223, retrieved from http://onlinelibrary.wiley.com/doi/10.1111/j.1540-5885.2008.00296.x/pdf

All in all, Stage-Gate model can be used for generating innovative ideas. However, companies need to be really careful about their decisions about choosing gatekeepers, preparing good deliverables to avoid bureacracy, and selecting the appropriate model for them.

4. Conclusion

It is necessary to accept that innovation management is one of the solutions for the survival of businesses. It can be used to develop products, services and processes for different purposes such as staying in competition or to gain more profit. Therefore, researchers or companies need to understand the process of innovation management to make right decisions. As a result, they need to decide proper sources to find innovative ideas; convenient methods, such as networking, collaboration, to reach these sources, innovation; concurrent systems, Stage-Gate model ,to adopt innovative ideas, and compatible teams to manage innovation.

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