> For the complete documentation index, see [llms.txt](https://docs.digit.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digit.org/health/access/public-health-product-suite/health-campaign-management-hcm/specifications.md). # Specifications This section provides a structured and comprehensive technical overview of DIGIT HCM. It is divided into three main segments: 1. [**Functional Specifications** ](/health/access/public-health-product-suite/health-campaign-management-hcm/specifications/functional-specifications.md)– Detailed documentation of core modules, including campaign type setup, inventory management, beneficiary data handling, boundary hierarchies, system user roles, and more 2. [**Role Action Mapping**](/health/access/public-health-product-suite/health-campaign-management-hcm/specifications/role-action-mapping.md) – Defines the permissions and actions available to each system role—from system administrators to registrars, supervisors, warehouse managers, and programme managers—ensuring clarity, security, and accountability 3. [**Building Blocks & Services** ](/health/access/public-health-product-suite/health-campaign-management-hcm/specifications/building-blocks-and-services.md)– Highlights the modular architecture of HCM, emphasising reusable, configurable building blocks—such as registries and service modules—that support adaptability, scalability, and seamless interoperability across campaigns and systems --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.digit.org/health/access/public-health-product-suite/health-campaign-management-hcm/specifications.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.