NTT Group is a leading global telecommunications business, originating in Japan. Since the company’s privatization, NTT has been divided into mobile and regional telecommunications businesses, with each company establishing its own operations. As a result, the total number of IT systems in NTT Group has reached thousands in Japan alone, making it difficult to standardize and automate operations and utilize data.

Since 2018, NTT Group has been working on a digital transformation across its entire operations, driving business process visualization and standardization in an effort to move away from siloed systems, make best use of data serialization and analytics, and implement a common language between business and IT in order to provide visibility and analysis of how greater value can be delivered to its customers.

Driving large-scale digital transformation with SAP LeanIX and SAP Signavio solutions

Before: Challenges and opportunities 

  • Digital transformation: moving away from siloed systems, taking advantage of data serialization and analysis, promoting visibility and standardization of business processes, enterprise architecture and data governance across 115 companies within the NTT Group
  • Creation of a center of excellence (CoE) team within NTT Shareholding and NTT Comware to work with the CIO/CDO organization to promote various DX measures across NTT Group

Why SAP

  • SAP Signavio solutions offered an intuitive and easy way to create BPMN 2.0 assets and centralize process management in the cloud, including a common language for operations and IT
  • Support from SAP LeanIX solutions to deploy the TOGAF method to develop enterprise architecture and drive overall system optimization

After: Value-driven results

  • Unified and standardized business processes across NTT Group, including centralized management of business processes and clear connections across business areas ensures smooth resolution of gray zones and cross-functional issue resolution
  • Quantitative data visible across the entire organization leads to more motivated employees and continuous improvement of efficiency goals, including significant cost savings
  • 98% reduction in identified issues in ERP migration projects after adoption of SAP LeanIX and SAP Signavio solutions compared to same-size IT projects

“We recognize that SAP LeanIX and SAP Signavio are encouraging partners to strongly support the digital transformation of the entire NTT Group. The problems associated with the migration were also drastically reduced by both solutions. We want to transform with a powerful tool that we can use to transform business processes and IT, as well as NTT Group overall.”

Jicho Ken Komazawa, Technical Planning Department, IT Office, NTT Group