5CS – Five Case Solution

• 5CS is a joint venture between APMG International and 5CS Ltd.
• 5CS is a collaborative online web application designed to make it easier to develop business cases, providing functionality to improve collaboration, efficiency, and decision-making.5CS is offered as Software for a Service (SaaS), providing the convenience of a single web application where users can create, manage and store all their business case information and documentation.
• 5CS is based on the best practice Five Case framework for developing business cases, as recommended in the HM Treasury's Green Book and used by the UK government.
• 5CS incorporates each stage in the Five Case Model and has been implemented in a way that faithfully adheres to the Better Business Cases (BBC) methodology.
• As well as providing an online application which allows the user to logically complete each stage in the BBC process, it also provides step by step guidance, signposting, templates and a knowledge base which users can draw upon within each stage and action.
• The 5CS guidance will be kept up to date to ensure it aligns with any changes to the BBC methodology and Five Case Model.

To find out more about 5CS or to organize a personalised demo, please contact 5CS@apmgroup.co.uk

5CS is ideal for project professionals, consultants, and organizations, especially those in the public sector or large enterprises, who need to develop robust business cases. Whether you're a government department, independent PMO, consultant, or Accredited Training Organization (ATO), 5CS supports structured, efficient case creation using the Five Case Model.

Built around the UK Treasury’s Green Book and the Five Case Model, 5CS ensures alignment with best-practice standards and facilitates faster, more accurate submissions, better collaboration, and transparency throughout the development process. This helps reduce approval delays and supports stronger decision-making.

No you don’t. 5CS provides an intuitive, guided interface that walks experienced business case writers through each stage of the Five Case Model. That said, for those new to the methodology or looking to deepen their mastery, training and consultancy packages (via APMG and accredited partners) are also available.

5CS is the only platform specifically built around the Five Case Model and Better Business Cases methodology. It combines automation, built-in guidance (templates, tooltips, knowledge base), collaboration features, and dashboard reporting, delivering a holistic solution for structured, best-practice business case development.

Yes. 5CS offers secure document management, version control, and a full audit trail, ensuring your sensitive project data remains safe, transparent, and accessible only to authorized stakeholders.

Absolutely. 5CS enables real-time collaboration across roles, from investors and PMs to external advisers—ensuring everyone stays aligned, working within a single live platform, and contributing accurately to project documentation.

Yes. The platform includes adapted G20 principles and can be customized to reflect country-specific regulatory requirements, making it a fit not only for UK-based organisations but also for international governments and institutions.

ATOs can embed the platform into their training delivery, enabling hands-on learning, real-world business case application, and post-training support. It also opens up opportunities to bundle consultancy, short courses, and tool usage into comprehensive packages for clients.