Exigen Services enterprise application integration

We deliver legacy systems and middleware integration, business process expertise, consulting and support. In each particular case, our specialists evaluate and suggest technologies, listed below, to provide our customers with the most reliable, efficient and least risky solutions:

• Web Services — The most common way to build highly interoperable distributed software architectures is by using Web Services, which provide seamless integration of software systems from different vendors and areas. Web services also plays an important role in building a service oriented architecture, which is currently the most promising and innovative way to build enterprise software systems.
• Messaging Systems (ESB, Tuxedo, Tibco, JMS) or platforms used to manage distributed transaction processing in distributed computing environments— are platforms used to build and manage distributed computing environments within large organizations with high demands for productivity and reliability. They are successfully used to build solutions for various mission-critical systems such as banking, online transaction processing and medicine.
• Connectors (JCA) — is a Java-based technology especially designed for enterprise application integration and integration with legacy systems through connecting application servers and enterprise application systems (EAS). Connector architecture has been used for years and is a very common way of integrating Java-based solutions with legacy systems.
• Database or File System — In cases where the technologies mentioned above are unsuitable, Exigen Services will develop custom solutions to directly interact with a legacy database or integrate with a legacy system via a file system on a target server. One of our most successful examples is an EDI and EPJ integration we created for one of our largest customers. EDI and EPJ are widely used in Danish medicine, including the mission-critical systems we have successfully integrated.

All of the solutions listed above have their own pros and cons; each EAI project defines its own set of required technologies to be used. The Exigen Services EAI team has extensive experience determining the major factors that drive project success:

• Flexible and Responsive Management needs to control the processes at every level of the company and move the process forward; a lengthy decision-making and approvals process may impact the project schedule. Our management team works in close cooperation with the customer's management staff to focus on delivering results
• Risk Management Procedures have to be defined and executed fully. Our experience shows that EAI projects are often very risky due to many factors; dealing with sensitive data, staff, legacy systems and other similar issues can impact the execution of project. Under these circumstances proper risk management becomes critical to project success
• Development Process needs to be defined and properly executed by both client and vendor
• Presence Documentation is an integral part of the project
• Test Environment is an integral part of the project. Usually in addition to the Test Environment, code stubs are required to be developed. Proper attention to environment and stubs helps reduce costs and development time
• Estimation Risks must be carefully considered. The Exigen Services staff involved in the estimation process has extensive experience in EAI project estimations

Exigen Services' EAI service takes into consideration all other project constraints, such as time, budget, security and many other typical considerations for and EAI project.