IBM Information Management System (IMS™) is a hierarchical database and transaction management system available on z/OS®. 

IMS serves as an application platform, comprising a secure database management system and a scalable transaction manager built for high-performance online transaction and data processing. By leveraging APIs and distributed connectivity, IMS can integrate with modern tools and emerging technologies, enabling it to host and extend the functions of your business-critical applications. IMS contains two major components that can be used together or separately:

• IMS Transaction Manager (TM): Host mission-critical applications to support billions of transactions per day.
• IMS Database Manager (DB): Securely store, manage and process critical data with confidence.

Features

• IMS - **Maintain message integrity: **Process billions of transactions per day, while restart and recoverability facilities ensure that no data is lost, and every record is accounted for. - **Enhance security: **IMS coupled with IBM Z® data and security technologies help safeguard your enterprise with tools that were designed to allow you to securely build, run and manage your applications.  - **Increase flexibility: **Modernize your cloud by using languages like Java™ and leveraging today's hybrid cloud methodologies with IBM z/OS® Connect to make IMS data and transactions easily accessible.  - **Get hybrid cloud ready: **Automate IMS with open-source tools and Ansible® for faster, simpler deployment. Streamline your DevOps pipeline with cloud-ready APIs that seamlessly integrate to drive agility and efficiency.
• IMS Transaction Manager - **Modernize applications with Java and API: **Enhance your IMS applications by leveraging Java interoperability with COBOL or PL/I. This enables application or database access across distributed and z/OS environments using the IMS TM resource adapter, Universal Driver, and APIs, accelerating application modernization. - **Automate your DevOps pipeline: **Deploy applications faster with Ansible to drive agility and efficiency within your enterprise and bring greater cohesion amongst development and operational teams.  - **Scale and prioritize your workloads: **Extend your applications with IMS TM’s high throughput to efficiently access and process your transactions from any cloud application without additional code, no matter where your data resides.
• IMS Database Manager - **Pure data integrity: **Robust lock management and extensive logging ensure that IMS provides uncompromised integrity, and that every record is accounted for, and no data is lost or inadvertently deleted. - **Open access to IMS data: **Access IMS database easily from any distributed or cloud application using API or SQL. - **Optimized performance and reliability: **Leverage hierarchical databases which reduce processing overhead, streamline query processing and enable high availability, storage, speed and low-cost solutions.  - **Enhanced security and compliance management: **Enable the built-in IBM Z pervasive encryption and z/OS data set encryption with minimal CPU overhead and no application changes to protect your data no matter where it resides. - **Data management flexibility: **With the removal of IMS proprietary tasks, you can access IMS data through an industry standard data definition language, which provides greater flexibility in data management. - **Reduce talent gaps: **Integrate cloud-native tools and technologies with IMS subsystems using APIs and database administration tasks which help reduce talent gaps and enable access to more users.