Papers by Kazutoshi Sakaguchi
Bulletin of Japanese Society for the Science of Design, 2022
The integration of interactive systems consisting of humans, artifacts, and the environment requi... more The integration of interactive systems consisting of humans, artifacts, and the environment requires a precursory image as a prerequisite for the designer's cognitive processes. No concrete model for constructing it has been presented. In this study we proposed and verified a hypothesis for the construction model of system. It is that an organized precursory image involving the system is constructed, part of which are visualized in a sketch. Basho conditions constrain the behavior of an element. As a result, the following three points were confirmed. First, Basho conditions are reflected in text and idea sketches. Second, the system is visualized in the sketch by the abduction of the Ba based on the conditions of Basho. Third, the visualized sketch include this precursory image, system. This means that concrete sketches of artifacts and environments satisfying the conditions of Basho can identify system boundaries, interactions within the system, and interactions between the system and the outside.
Journal of Japan Creativity Society, 2022
This paper provides experimental verification that a service's vision can be expressed by iterati... more This paper provides experimental verification that a service's vision can be expressed by iterations of "prior image construction of the Ba based on the purpose" and "structuring by coordination between viewpoints". Services can be drawn as visuals models using an idea sketch sheet to express purposes and contexts that are difficult to verbalize. The service modeling sheet also facilitates the iterative design of the business-service-product hierarchy. Testing confirmed that a service's vision can be visually modeled by anyone regardless of their professional background or design skills. Based on these results, the vision building process models the service in terms of both concept and images, and identifies the products needed to enable the service by recognizing and correcting their mismatching elements or anomalous structure. In addition, since the modeled vision can be shared with others, a wide gamut of interpretations can be fostered among the participants.
Japan Society of Kansei Engineering, Aug 3, 2020
This study proposes a visualization method for service ideas by considering the usage context bas... more This study proposes a visualization method for service ideas by considering the usage context based on various stakeholders’ experiences gained in tabletop fieldwork. The proposed method is characterized by “idea generation through making combinations” as well as “experience-sharing based on tabletop fieldwork”. We applied the proposed method to two workshops, and confirmed that a total of 118 people successfully visualized their ideas in a short time using the proposed method. This study details the procedure of visualization, and shows that the proposed method assists in developing master plans and future visions.
In line with the Guide to the Creation of a Strategic Campus Master Plan advanced by the Japanese... more In line with the Guide to the Creation of a Strategic Campus Master Plan advanced by the Japanese Ministry of Education, Culture, Sports, Science and Technology, Fujitsu has drawn up an ideal shape for the Kyushu Institute of Technology envisioning its three campuses (Tobata, Iizuka, and Wakamatsu) 30 years into the future. In this effort, we adopted a Human-Centered Design (HCD) approach that emphasized values, ideas, and needs and derived an identity for Kyushu Institute of Technology through interviews and conversations with students, faculty, and other stakeholders. Furthermore, to incorporate future expectations of the university in the areas of community revitalization and the aging society, we conducted fieldwork, World Cafe sessions, and workshops with students, faculty, staff, and local residents and formulated a userparticipation type of campus master plan that takes into account a new relationship between the university and community. This paper describes this process and...
The conventional value delivery business is based on a relationship between a manufacturer and a ... more The conventional value delivery business is based on a relationship between a manufacturer and a customer, or service provider and service receiver. As a break from that framework, Fujitsu has focused attention on co-creation processes, in which sharing of social values and new discoveries and recognitions are incorporated into development for innovation that creates new possibilities of utilization of information and communications technology (ICT). In such processes, development of new products and services are practiced by involving not only customer companies, local governments and users but also the administration and NPOs. In practicing the processes, we have a real feeling of some benefits and effects including empathy-driven consensus building, a faster generation of ideas by collective intelligence and building of relationships with society. In addition, we also have an eye on the formation of open communities such as a future center as the basis of enterprise activities fo...
In this paper, we describe a case study on introducing the Design Thinking as preparations for Pr... more In this paper, we describe a case study on introducing the Design Thinking as preparations for Project Based Learning (PBL). The purpose of introducing the Design Thinking is to improve students’ skill in producing new added-value at the time of solving project problems and investigating PBL themes. In addition, we describe the results of the questionnaire carried out for evaluating the effect of this introduction.
The Japanese journal of ergonomics
The definition of service design is to integrate various elements related to human into service u... more The definition of service design is to integrate various elements related to human into service using user experience, story and meaning and make it a valuable system. In service engineering, it define service design as "It define value proposition of service, and make its structure of function clear". Functional structure of service consists function proposed values and structure of implementation and network of relationship between stakeholders proposed values. Service contain both tangible and intangible in its functional structure. This study define service as a system based on systems approach, and It make clear that service system consist system elements of business, UX, technology. In short it define value proposition of system elements for implementation of service, and it is necessary to consider each restrictions between system elements and have to design function of value proposition. Business element are function of marketing research, business model, pricing, planning of income and expenditure. UX element are function of value proposition, journey map, and persona. Technology are function of definition of system requirement, usecase, definition of function requirement, interface design.
Japanese Journal of Servicelogy, 2021
The Lean Startup shows that Minimum Viable Product (MVP) can create new business. However, it doe... more The Lean Startup shows that Minimum Viable Product (MVP) can create new business. However, it doesn't show how to actually make MVP. This study shows a structured service design model based on the perspective of external and internal constraints. By utilizing the vertical and horizontal approaches, we can find out multiple viewpoints which are required to perform system design. The models show a thinking process in which external and internal constrains are alternately adjusted and a MVP that satisfies all constraints is finally identified. These are able to explain pivot based inheritance of MVP.
Competition in the market for IoT has been growing ferce in recent years. In this climate, it is ... more Competition in the market for IoT has been growing ferce in recent years. In this climate, it is important to differentiate the products/services we offer from those of our rivals, and this requires prompt realization, and repeated evaluation and validation, of ideas and hypotheses to perfection. This will ensure that these products/services deliver value to customers. Fujitsu Advanced Engineering Ltd. has developed an event management solution, EXBOARD, leveraging its sensor technology. In an event venue, EXBOARD gathers data from the sensor beacons embedded in visitors' devices, and stores the data on a cloud system. These data are used to visualize information in real time, such as numbers and locations of people staying in each zone, people's interest levels in certain exhibitions, visitor fow, and so on. The collected data are also used to help to develop further innovations through analyses. In the development of EXBOARD, we employed the service design process. Working with designers from Fujitsu Design Ltd., we evaluated the concepts and hypotheses at an exhibition venue, to verify its potential and practicality. This paper describes the development of EXBOARD. It outlines how we evaluated the system at the exhibition venue, and presents some examples of application.
Design thinking, a popular approach in business today, helps companies to see challenges in the f... more Design thinking, a popular approach in business today, helps companies to see challenges in the field from users' viewpoints and to devise solutions creatively using designer's sensitivity and techniques. This trend has expanded the scope of designing to cover not only object forms but also intangible forms such as services. Against this background, Fujitsu Design Ltd. develops solution through human-centered design, including device/interface, space, and communication design. We have recently collaborated with Paramount Bed Holdings Co., Ltd. to create a service vision in the field of medical care and develop a video that illustrates the future of care beds. This paper explains the process of creating this service-vision video on the basis of user experience (UX) design, introducing Paramount Bed's Smart Bed System, which utilizes ICT to manage biometric information in an integrated fashion.
In line with the Guide to the Creation of a Strategic Campus Master Plan advanced by the Japanese... more In line with the Guide to the Creation of a Strategic Campus Master Plan advanced by the Japanese Ministry of Education, Culture, Sports, Science and Technology, Fujitsu has drawn up an ideal shape for the Kyushu Institute of Technology envisioning its three campuses (Tobata, Iizuka, and Wakamatsu) 30 years into the future. In this effort, we adopted a Human-Centered Design (HCD) approach that emphasized values, ideas, and needs and derived an identity for Kyushu Institute of Technology through interviews and conversations with students, faculty, and other stakeholders. Furthermore, to incorporate future expectations of the university in the areas of community revitalization and the aging society, we conducted fieldwork, World Café sessions, and workshops with students, faculty, staff, and local residents and formulated a user-participation type of campus master plan that takes into account a new relationship between the university and community. This paper describes this process and our community design methodology.
The conventional value delivery business is based on a relationship between a manufacturer and a ... more The conventional value delivery business is based on a relationship between a manufacturer and a customer, or service provider and service receiver. As a break from that framework, Fujitsu has focused attention on co-creation processes, in which sharing of social values and new discoveries and recognitions are incorporated into development for innovation that creates new possibilities of utilization of information and communications technology (ICT). In such processes, development of new products and services are practiced by involving not only customer companies, local governments and users but also the administration and NPOs. In practicing the processes, we have a real feeling of some benefits and effects including empathy-driven consensus building, a faster generation of ideas by collective intelligence and building of relationships with society. In addition, we also have an eye on the formation of open communities such as a future center as the basis of enterprise activities for continuous innovation creation. As an approach to innovation creation, this paper presents a co-creation process making use of design thinking that has emerged through the practice, together with its effect. It also describes the basis of activities believed to be necessary as a system for continuously generating innovation.
This study proposes a visualization method for service ideas by considering the usage context bas... more This study proposes a visualization method for service ideas by considering the usage context based on various stakeholders' experiences gained in tabletop fieldwork. The proposed method is characterized by "idea generation through making combinations" as well as "experience-sharing based on tabletop fieldwork". We applied the proposed method to two workshops, and confirmed that a total of 118 people successfully visualized their ideas in a short time using the proposed method. This study details the procedure of visualization, and shows that the proposed method assists in developing master plans and future visions.
Conference Presentations by Kazutoshi Sakaguchi
In case of creating new businesses, it is important to describe a service vision from viewpoint o... more In case of creating new businesses, it is important to describe a service vision from viewpoint of business, UX, and technology. However, no research about the relationship between business, UX, and technology in service design exists and no clear process definition is given. In this research we define service design as a business system, containing UX as a subsystem and technology as a component. As customer and user evaluations correspond to verification and validation, our proposed approach can be described as a V&V model. Therefore, we argument that systems approach can be applied to service design.
We propose Human Resource Development Model for Service Design that acquires thoughts and methods... more We propose Human Resource Development Model for Service Design that acquires thoughts and methods to design new businesses and services. The proposal contains detailed processes and methods to consider the validity of the model. Selecting the GOAL and conducting research based on the chosen GOAL, will lead to searching for opportunities, and will refine UX and value proposition according to theme. By performing this in iteration, it enables to refine the service itself. As a result of implementation of the proposed model for the graduate students majoring in system engineering, everyone was able to design the service and could show the validity of the proposal. The core of the Vee model expresses the evolving baseline from the stakeholder requirements agreement to the identification of a system concept to definition of elements that will comprise the final system. It can be referred as a system composed of business, UX, technology subsystems therefore, it can be said that the proposed model satisfies the function of examining the service system. The proposed model can be expressed as a Vee model, confirming that it is possible to approach by systems engineering.
A vision means a concept at some point in the future or an image of the future which is too vague... more A vision means a concept at some point in the future or an image of the future which is too vague to be verbalized. A mission is the current appointed work specified by the vision. The authors propose a new method of visualizing a vision by visually expressing the vision with photos, illustrations, etc., which can effectively share information with stakeholders. This method fosters empathy in the participants, shares the direction and world view that a project should aim toward, and has other such characteristics. This research shows the effectiveness of the characteristics in a case study of a project for healthcare vision recommendations.
The definition of service design is to integrate various elements related to human into service u... more The definition of service design is to integrate various elements related to human into service using user experience, story and meaning and make it a valuable system. In service engineering, it define service design as "It define value proposition of service, and make its structure of function clear". Functional structure of service consists function proposed values and structure of implementation and network of relationship between stakeholders proposed values. Service contain both tangible and intangible in its functional structure. This study define service as a system based on systems approach, and It make clear that service system consist system elements of business, UX, technology. In short it define value proposition of system elements for implementation of service, and it is necessary to consider each restrictions between system elements and have to design function of value proposition. Business element are function of marketing research, business model, pricing, planning of income and expenditure. UX element are function of value proposition, journey map, and persona. Technology are function of definition of system requirement, usecase, definition of function requirement, interface design.
Uploads
Papers by Kazutoshi Sakaguchi
Conference Presentations by Kazutoshi Sakaguchi