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March 12, 2021 / Last updated : December 20, 2021 Yasushi Tanaka Technical Information

The Ultra-upstream Process and the Inverse V Model

At the IPA (Information-technology Promotion Agency, Japan) forum held in 2011, the term “ultra-upstream process” was introduced as a new term in requirements engineering. Explaining the process and application techniques of ultra-upstream process in a lecture entitled “Ultra-upstream process to determine software quality (for correct understanding and specification of stakeholder requirements),” the IPA’s Software Engineering […]

February 16, 2021 / Last updated : February 12, 2022 Yasushi Tanaka Basic Member Only

Re-designing Subsystems

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January 4, 2021 / Last updated : December 8, 2021 Masakazu Yagi Basic Member Only

Description Rules for Applying the PReP Model (Beginner Level)

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January 3, 2021 / Last updated : December 1, 2021 Masakazu Yagi Basic Member Only

Main notations and drawing rules of the PReP model

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January 3, 2021 / Last updated : November 25, 2021 Yasushi Tanaka Basic Member Only

Process Structuring and the PReP Model

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December 16, 2020 / Last updated : April 27, 2021 Administrator Case Study

The PReP model contributed to a JPY 500 million order for Hitachi’s smart factory solution, H-SPEED

Issues before the PReP model’s introduction – Clients’ business reforms tended to be sub-optimized– Difficulties faced in communication with clients Results after the PReP model’s introduction – Steady progress in the client’s business reform– Demonstrated synergistic effects in combination with other methods– Contributed to a JPY 500 million deal Mr. Hidenobu Yoshida, Hitachi, Ltd. Hitachi […]

December 3, 2020 / Last updated : February 27, 2021 Administrator Case Study

The simple method enabled the next generation smart factory’s conceptual design in just half a day

Issues before the PReP model’s introduction – The discussion on what to achieve tended to digress often toward the means, not the end– Business processes became more complex Results after the PReP model’s introduction – The participants were able to concentrate on the discussion and complete the conceptual design of a smart factory system in […]

October 30, 2020 / Last updated : February 27, 2021 Administrator Case Study

The PReP model used for ABEJA’s new service development helped exceed the management target by 30%

Issues before the PReP model’s introduction – Different understanding of customers within the Customer Success team– Difficulty in communicating and collaborating with the development team Results after the PReP model’s introduction – Smooth promotion of self-service marketing– Reduced development time for new services by 75%– Conversion rate for test marketing exceeded the target by 30% […]

February 21, 2020 / Last updated : April 21, 2021 Administrator Case Study

Incorporating the PReP model, an essential DX tool, into the conventional method

Issues before the PReP model’s introduction – The more actors, the longer it takes to understand a business process– Improvement often ends up suboptimal Results after the introduction of the PReP model – Easier to discover current issues– Enables totally optimized improvement for business requirements The AFFORDD T21 Study Group members A PReP model workshop […]

Recent posts

  • The Ultra-upstream Process and the Inverse V Model
  • Re-designing Subsystems
  • Description Rules for Applying the PReP Model (Beginner Level)
  • Main notations and drawing rules of the PReP model
  • Process Structuring and the PReP Model

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