Details of a Researcher - Shirasaka, Seiko

Presentations -

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Multi-stakeholder interactive simulation for federated satellite systems

Grogan Paul T., Golkar Alessandro, Shirasaka Seiko, De Weck Olivier L.

2014 IEEE Aerospace Conference,

2014.03

Oral presentation (general)

Federated satellite systems (FSS) are a new class of space-based systems which emphasize a distributed architecture. New information exchanging functions among FSS members enable data transportation, storage, and processing as on-orbit services. As a system-of-systems, however there are significant technical and social barriers to designing a FSS. To mitigate these challenges, this paper develops a multi-stakeholder interactive simulation for use in future design activities. An FSS simulation interface is defined using the High Level Architecture to include orbital and surface assets and associated transmitters, receivers, and signals for communication. Sample simulators (federates) using World Wind and Orekit open source libraries are applied in a prototype simulation (federation). The application case studies a conceptual FSS using the International Space Station (ISS) as a service platform to serve Earth-observing customers in sun-synchronous orbits (SSO). Results identify emergent effects between FSS members including favorable ISS power conditions and potential service bottlenecks to serving SSO customers.

Summary of development and testing of UNIFORM-1 microsatellite

Yamaura Shusaku, Hiramatsu Takashi, Miyata Kikuko, Tsuruda Yoshihiro, Fukuhara Tetsuya, Akiyama Hiroaki, Shirasaka Seiko, Nakasuka Shinichi

65th International Astronautical Congress 2014,

2014

Oral presentation (general)

An extended notation of FTA for risk assessment of software-intensive medical devices.

Sakai Yoshio, Nishi Yasuharu, Shirasaka Seiko

IEEE International Symposium on Software Reliability Engineering (ISSRE),

2013.11

Oral presentation (general)

Developing Assumption Personas using WCA 2X2 Matrix

Watanabe, K., Shirasaka, S.

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),

2013.09

Oral presentation (general)

Mission Conception and SE Methodology through Simulated-Satellite Design Contest for Students

Hiraku Sakamoto, Yuya Nakamura, Shinichiro Narita, Yuya Kakehashi, Seiko Shirasaka, Noshiko Kohtake

7th Asia-Pacific Conference on Systems Engineering,

2013.09

Oral presentation (general)

Development and Application of Innovation Education Programs in Workshop Format

Yoshikazu Tomita, Seiko Shirasaka

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),

2013.09

Oral presentation (general)

Hierarchical knowledge transfer and creation model

Uchikawa, H., Shirasaka, S., Yasui, T.

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),

2013.09

Oral presentation (general)

33. Designing Public Policy by Structural Shift Ideation: Modeling and Validation through the Case of Revitalizing Decaying Local Shopping Malls

Yasui, T., Shirasaka, S., Maeno, T.

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),

2013.09

Oral presentation (general)

Describing an assurance case using D-Case for microsatellite operations

Tanaka, K., Matsuno. Y., Nakabo, Y., Hiramatsu, T., Shirasaka, S., Nakasuka, S.

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),

2013.09

Oral presentation (general)

Model Checking for a Changed System during System Operations

Kinoshita, S., Nishimura, H., Shirasaka, S.

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),

2013.09

Oral presentation (general)

Architecting PMO in global and complex projects utilizing the systems approach

Imani, T., Shirasaka, S., Shiota, K.

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),

2013.09

Oral presentation (general)

37. A Method for Analysis of Ideas Obtained from Brainstorming by Calculating Closeness Centrality of the Ideas and Visualizing the Transition

Kinoshita, S., Yokoyama, Y., Tsuji, N., Noguchi, M. and Shirasaka, S.

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),

2013.09

Oral presentation (general)

Configuration Management System for a Collaborative Micro/Nano-Satellite Development by Multiple SMEs.

Kadokura, Y., Shirasaka, S.

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),

2013.09

Oral presentation (general)

Applying systems Approach to Visualize Human Emotion

Nishio, M., Makino, Y., Shirasaka, S. and Maeno, T.

7th Asia-Pacific Conference on Systems Engineering (APCOSE 2013),,

2013.09

Oral presentation (general)

The concept design of cause related marketing utilizing wants chain analysis proposing the method and validation through value co-creation workshops

Sugiyama Nozomi, Fujita Tomoyuki, Kanke Motoshi, Yasui Toshiyuki, Shirasaka Seiko, Maeno Takashi

the 57th Annual Meeting of the International Society for the Systems Sciences,

2013.07

Oral presentation (general)

In this study, we propose a methodology for designing a Cause-Related Marketing (CRM) strategy using Wants Chain Analysis (WCA). To delineate the methodology, the authors introduce the concept of WCA to design CRM through a concrete and effective process in a standardized manner. The methodology can help create new types of concepts of CRM that are not only donation-based but also make relationships and supply substance or service. The authors validate the efficacy of a WCA-based CRM by conducting experiments during workshops held for value co-creation, in which various CRM stakeholders participated to create concrete designs for CRM.

An analysis for knowledge transfer issues relating to HTV development

Hideaki Uchikawa, Hirohiko Uematsu, Hiroshi Sasaki, Seiko Shirasaka

The 29th International Symposium on Space Technology and Science,

2013.06

Oral presentation (general)

An Effectiveness of Scenario Graph by Group

Hiroyuki Yagita, Seiko Shirasaka

the 6th International Conference on Business and Technology Transfer, ICBTT2012,

2012.12

Oral presentation (general)

Enhancement of Problem-solving Capability by Reduction of Project Complexity - A Case Study on Empirical Validation of Information Centric Project Management-

Akihiro Sakaedani, Toshiyuki Yasui, Seiko Shirasaka, Takashi Maeno

6th international conference on Project Management,

2012.10

Oral presentation (general)

Toward strategic development of hodoyoshi microsatellite using assurance cases

Tanaka Kohei, Matsuno Yutaka, Nakabo Yoshihiro, Shirasaka Seiko, Nakasuka Shinichi

the 63rd International Astronautical Congress,

2012.10

Oral presentation (general)

As satellite technology has been highly advanced, it has become difficult to assure dependability of satellite systems. Currently, dependability of satellite systems is mainly supported by various risk analysis and verification. However, sometimes it is not clear why such analysis and verification result are required for dependability of the satellite systems. In particular for development of micro satellites, due to time and cost constraints, management of risk analysis and verification has been done in ad-hoc manner. This paper presents a strategic development of a micro satellite using assurance cases. Assurance case is a documented body of evidence that provides a convincing and valid argument that a system is adequately dependable for a given application in a given environment. In Europe, assurance cases are widely used as regulation in safety- critical areas such as defense, avionics, rails, etc. In this paper, we take "Discharge and Charge system of Hodoyoshi-3 microsatellite" as an example. We conduct a writing experiment of assurance cases for the system and report how the assurance cases are used for quality assurance of the system.

Toward Strategic Development of Hodoyoshi　microsatellite using Assurance Cases

Kohei Tanaka，Yu Matsuno，Yoshihiro Nakabo，Seiko Shirasaka，Shinichi Nakasuka

the 63rd International Astronautical Congress,

2012.10

Oral presentation (general)

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