Attunity Application Adapters Modernization Guide

Attunity Application Adapters provide connectivity between distributed applications and legacy systems running on z/OS, such as CICS, IMS, and Batch COBOL applications. It acts as middleware, enabling modern applications to access and interact with these older systems without requiring significant changes to the legacy code.

Attunity Application Adapters is middleware. It provides a bridge between different application environments, allowing them to communicate and exchange data. It is not a complete system or a standalone application but rather a set of tools and components that facilitate integration.

Organizations that rely on mainframe systems for core business functions and need to integrate these systems with newer, distributed applications benefit most from Attunity Application Adapters. This includes large enterprises in industries such as banking, insurance, retail, and government.

A company should consider using Attunity Application Adapters when they need to expose legacy applications as services to modern applications, consolidate data from multiple legacy systems, or modernize their application architecture without completely replacing their mainframe systems.

Alternatives include IBM z/Connect, Rocket z/Direct, and other integration platforms that offer mainframe connectivity. Attunity Application Adapters distinguishes itself through its focus on performance, ease of use, and specific support for CICS, IMS, and Batch COBOL environments.

Attunity Application Adapters runs on z/OS. It typically operates within an LPAR and requires specific subsystems such as CICS or IMS, depending on the applications being accessed. It extends the capabilities of these subsystems by providing a standardized interface for external access.

Attunity Application Adapters requires a network connection between the distributed application environment and the z/OS system. It uses protocols such as TCP/IP for communication. The specific ports required depend on the configuration and the subsystems being accessed.

Attunity Application Adapters exposes APIs that allow distributed applications to interact with legacy systems. These APIs can be accessed using various programming languages and SDKs. The product supports standard protocols for communication and data exchange.

The main components include the adapter itself, which resides on the z/OS system, and the client libraries, which are used by the distributed applications. These components communicate using TCP/IP. Configuration files define the mapping between the API calls and the legacy transactions.

Attunity Application Adapters enables organizations to leverage their existing mainframe investments while modernizing their application architecture. It reduces the cost and risk associated with replacing legacy systems by allowing them to be integrated with newer technologies.

By providing a standardized interface to legacy systems, Attunity Application Adapters simplifies application development and integration. Developers can access mainframe data and functionality without needing to understand the complexities of the underlying legacy systems.

Attunity Application Adapters allows organizations to expose legacy applications as services, enabling them to participate in modern service-oriented architectures (SOA). This allows businesses to respond more quickly to changing market demands.

Attunity Application Adapters supports authentication methods such as RACF, ACF2, and Top Secret for controlling access to mainframe resources. It uses an access control model based on roles and permissions to ensure that only authorized users can access sensitive data and functionality.

Attunity Application Adapters uses encryption to protect data in transit between the distributed application environment and the z/OS system. It supports standard encryption protocols such as TLS/SSL to ensure confidentiality and integrity.

Attunity Application Adapters provides audit logging capabilities to track access to mainframe resources. These logs can be used to monitor user activity, detect security breaches, and comply with regulatory requirements.

Attunity Application Adapters is typically deployed on-premise, within the organization's data center. Implementing it requires technical expertise in both mainframe systems and distributed application environments. Common implementation challenges include network configuration, security setup, and performance tuning.

Ongoing operational requirements include monitoring the health and performance of the adapter, managing user access, and applying security patches. This requires a team with expertise in both mainframe and distributed systems.

Attunity Application Adapters provides administrative interfaces, including a command-line interface (CLI) and potentially a web-based console, for managing the adapter and its configuration. These interfaces allow administrators to monitor performance, manage users, and configure security settings.