PLANO, TX, May 15, 2025 – Siemens Digital Industries Software has announced the Questa One smart verification software portfolio, combining connectivity, a data driven approach and scalability with AI to push the boundaries of the Integrated Circuit (IC) verification process and make engineering teams productive.
Questa One is designed to improve performance and scalability in verification workflows, supporting complex designs from IP blocks to SoCs and full systems. It accelerates verification tasks with specific capabilities for advanced 3D-ICs, chiplet-based architectures, and software-defined systems.
“Questa One transforms the IC design process to address the verification productivity gap and solves the IC industry’s rapidly growing challenges associated with increasingly complex designs,” said Abhi Kolpekwar, vice president & general manager, Digital Verification Technologies, Siemens Digital Industries Software. “Questa One uses new technical advances to deliver the fastest functional, fault and formal verification engines available, yet customers tell us that performance alone isn’t enough – they also need deeper connectivity across our unmatched verification, validation and test workflows, which Questa One provides. Combined with our application of AI, Siemens’ verification solutions are truly yielding step-function gains in productivity by early adopters across smart creation, smart regression, smart analysis, smart engine and smart debug domains.”
Siemens collaborated with industry partners to develop Questa One, a smart verification solution aimed at addressing the challenges of Verification Productivity Gap 2.0. This gap arises from the growing complexity of technologies such as 3D-ICs, chiplet-based architectures, and software-defined systems – combined with a shortage of skilled engineers and increasing requirements for security, power efficiency, reliability, and sustainability. Questa One offers a scalable, data-driven verification framework to address complex design and resource challenges.
The Questa One smart verification solution includes various technical breakthroughs including:
- Questa One Coverage Acceleration software has achieved coverage goals 50x faster than traditional testbench solvers combining higher/faster coverage results with the benefits of Universal Verification Methodology (UVM) constrained random test generation.
- Questa One DFT Simulation Acceleration software has achieved 8x faster gate-level design for test (DFT) serial pattern simulations leveraging Questa One Parallel Simulation software and is integrated with Tessent Streaming Scan Network (SSN) architecture.
- Questa One Fault Simulation Acceleration software has delivered 48x faster performance and supports both functional safety and DFT fault simulation applications. It supports the User Defined Fault Modeling (UDFM) capability in Tessent.
- Questa One Stimulus Free Verification software empowers engineers to achieve new levels of productivity. By combining verification engines and unifying applications, Questa One reduces processing times on complex open-source SoC-level reference designs – from over 24 hours to under a minute in test cases. It integrates 20 stimulus-free analyses along with AI and automation features, enabling lint auto-correction and automated SVA generation and verification.
- Questa One Avery Verification IP software is based on Avery’s VIP and Compliance Test Suites (CTS). Protocol-aware debug and protocol-aware coverage analytics help increase productivity, and accelerated VIP enables the same CTS, testbench and stimulus on Questa One Sim to be re-used on Veloce CS emulation and prototyping systems.
The Questa One smart verification solution is founded on three core principles:
- Questa One Connected Verification software connects engineers, EDA tools and verification IP to form an ecosystem for verification, validation, and test across Siemens’ Questa One, Tessent DFT and Veloce CS emulation and prototyping systems.
- Questa One Data-Driven Verification software leverages the power of data through AI-powered analytics to bring new insights and to improve verification productivity. Generative, prescriptive, and predictive ML help improve verification using minimal resources.
- Questa One Scalable verification software delivers acceleration and automation, with efficient closure and improved verification confidence.
Availability
The Questa One smart verification solution will be available in June 2025.
About Siemens Digital Industries Software
Siemens Digital Industries Software delivers integrated tools and services to support digital transformation across engineering and manufacturing workflows. Its offerings help companies streamline product design, optimize manufacturing, and manage operational data more effectively. The company serves sectors such as automotive, aerospace, industrial equipment, electronics, and consumer goods. Its work in areas like product lifecycle management (PLM) and manufacturing systems plays a key role in advancing digital continuity and efficiency. Headquartered in Plano, Texas, it operates as a business unit of Siemens AG.
About Siemens Digital Industries (DI)
Siemens Digital Industries (DI), a division of Siemens AG, focuses on industrial automation and digitalization. Based in Nuremberg, Germany, the division provides software, automation systems, and digital services that support the full product and production lifecycle—from design and engineering to manufacturing and maintenance. With a history extending over six decades, Siemens DI serves key sectors including automotive, aerospace, pharmaceuticals, energy, and electronics. Its technologies, such as the Xcelerator platform and SIMATIC automation systems, are designed to integrate physical and digital processes, enabling data-driven manufacturing and operational efficiency. The division reports annual revenues exceeding €18 billion and employs approximately 70,000 people globally. Its portfolio supports manufacturers in implementing Industry 4.0 strategies by linking simulation, automation, and real-time data in scalable systems.
About Siemens AG
Siemens AG, based in Munich, Germany, is a global technology company with operations across industry, infrastructure, transportation, and healthcare. Founded in 1847, the company provides a broad range of products and services, including industrial automation systems, digitalization tools, energy-efficient technologies, and medical diagnostic equipment. In fiscal year 2024, ending September 30, Siemens reported revenue of €75.9 billion and net income of €9.0 billion. The company employs more than 312,000 people worldwide, with around 90,000 in Germany. Siemens is one of Europe’s largest industrial manufacturers and plays a key role in global markets for automation and industrial software.