Hitachi, Ltd.

Yusuke Jin

Masahiro Mimura

Nishio Yamada

Tadayoshi Kosaka

Manabu Hasegawa

Hirofumi Nagasuka

Ryota Mibe

Yasunari Takai

Katsumi Kawai

Ryosuke Tsuchiya

Tarou Sakisaka

Naoki Furuya

Yuri Okada

Hideki Ishiai

Hiroaki Muratani

Shuichi Tanaka

A trail recording system includes a trail recording apparatus and a report receiving apparatus, the trail recording apparatus: holds a plurality of measurement values measured by a sensor, and trail data generated based on at least some of the plurality of measurement values; and transmits the trail data to the report receiving apparatus, the report receiving apparatus transmit, to the trail recording apparatus, a request indicating the trail data of the sensor that is an audit target, the trail recording apparatus transmits, to the report receiving apparatus, out of the plurality of measurement values, measurement values that have been used to generate the indicated trail data, the report receiving apparatus verifies, based on the trail data and the measurement values received from the trail recording apparatus, whether the at least some of the plurality of measurement values measured by the sensor are tampered is verified.

Trail recording system and data verification method

A server device stores data sent from a client device together with data identification information and stakeholder identification information that identifies a stakeholder operating the client device. A controller determines a number of stakeholders included in the data, and, in a case where the data stores information on stakeholders of a plurality of n organizations, leaves information on a specific stakeholder unrewritten and rewrites information of other stakeholders with optional information to generate n types of management data. The controller generates first hash value for each of the n types of management data, and controls n transactions including the first hash value to be issued to a blockchain, and transmits the transaction. The controller returns, in response to a browsing request specifying the data identification information and the stakeholder identification information from the client device, management data corresponding to the stakeholder identification information among the n types of management data.

Server device and traceability method

Disclosed is a business model generation support method for proposing a new business model. A computer receives a first business model and a second business model, and adds, for the plurality of business models, a first activity and a second activity which are respectively performed by the first and second business models to first information that predefines jobs performed by the business models as activities. Next, the computer adds the relation between a first data item and the first activity and the relation between a second data item and the second activity to second information that predefines the relation between the activities and the data items used for performing the activities. The first and second data items are used for performing the first and second activities, respectively. Then, the computer searches the second information to obtain a third activity including both the first data item and the second data item.

Business model generation support method and business model generation support device

In order to realize a method for analyzing an impact of change with less misidentification and missing, an apparatus for analyzing an impact of change for investigating a change impact range caused by a change in requirements and specifications includes: a storage unit that stores design information and keywords; an input unit that inputs a trace condition including the design information representing an origin of a change impact analysis in design conditions stored in the storage unit and the keywords stored in the storage unit; a CPU that receives the trace condition including the design information representing the origin of the change impact analysis and the keywords from the input unit, and calculates an influence score representing a probability of the influence caused by the change in the requirements and the specifications for each of the design information; and a display unit that outputs a result calculated by the CPU.

Method for analyzing impact of change and its apparatus

Growing community of inventors

Tokyo, Japan

Yusuke Jin