Rivermine and CACI Form Strategic Alliance to Offer Telecommunications Expense Management Solutions; Unique Combination of Software and Services Enhances System Development, Helps Clients Meet Federal Transformation Goals.

FAIRFAX, Va. -- Rivermine Software, Inc., a Fairfax, VA-based software developer, and CACI International Inc (NYSE:CAI) announced today that they have formed a strategic alliance under which CACI will resell Rivermine's telecommunications expense management software to current and potential federal clients. This unique combination of automated solutions and CACI's technical expertise enables clients to enhance productivity during system development and help meet federal transformation goals for improving business processes. The partnership supports CACI's core systems integration and network services business areas.

The Rivermine/CACI solution offers software that automates, integrates, and streamlines the management of processes for ordering network equipment, controlling inventory, and providing financial controls such as contract compliance, auditing, and invoicing. Rivermine's software includes three interlocking modules:

--Rivermine Inventory Engine

--Rivermine Service Order Manager

--Rivermine Finance Manager

CACI will position Rivermine as an extension of the company's support for the Defense Department's Standard Procurement System (SPS), for which CACI is the developer and prime contractor. CACI will provide training, implementation, and customer support on all resulting sales. CACI will also implement a fully functioning version of Rivermine's software at its state-of-the-art center of technical excellence, the Vision & Solution Center. CACI expects to market the solution to existing and prospective customers, including DoD clients, military departments, and civilian agencies.

According to CACI Executive Vice President Gil Guarino, "The Rivermine/CACI software alliance offers a practical and powerful solution backed by high-quality professional services. Clients will benefit from our innovative ability to streamline and enhance system provisioning, deliver time and cost savings, and produce more effective and efficient telecommunications systems. By entering into this strategic alliance with Rivermine, CACI strengthens our capabilities as a technology resource for our federal clients in support of improved government operations and taxpayer service."

Mark Logan, CEO of Rivermine, said, "We are pleased to partner with CACI, which has a rich history in providing comprehensive, innovative solutions to federal customers. The alliance provides Rivermine with an immediate entree into the federal marketplace and enables CACI to share the significant return-on-investment benefits of telecom management with large government agencies."

About Rivermine:

Rivermine is the leading provider of Enterprise Telecommunications Expense Management solutions. Rivermine's inventory-powered solution provides mega-million dollar impact to customers by addressing their largest and most severe management issues: controlling expenses, process compliance, and analysis of network design, usage, and cost. A privately held company, Rivermine caters to billion dollar enterprises and partners with select service providers and integration companies.

About CACI:

CACI International Inc provides the IT and network solutions needed to prevail in today's new era of defense, intelligence, and e-government. From systems integration and managed network solutions to knowledge management, engineering, simulation, and information assurance, we deliver the IT applications and infrastructures our federal customers use to improve communications and collaboration, secure the integrity of information systems and networks, enhance data collection and analysis, and increase efficiency and mission effectiveness. Our solutions lead the transformation of defense and intelligence, assure homeland security, enhance decision-making, and help government to work smarter, faster, and more responsively. CACI, a member of the Russell 1000 and S&P SmallCap 600 indices, provides dynamic careers for approximately 9,500 employees working in over 100 offices in the U.S. and Europe. CACI is the IT provider for a networked world. Visit CACI on the web at www.caci.com.

There are statements made herein which do not address historical facts and, therefore could be interpreted to be forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Such statements are subject to factors that could cause actual results to differ materially from anticipated results. The factors that could cause actual results to differ materially from those anticipated include, but are not limited to, the following: regional and national economic conditions in the United States and the United Kingdom, including conditions that result from terrorist activities or war; failure to achieve contract awards in connection with recompetes for present business and/or competition for new business; the risks and uncertainties associated with client interest in and purchases of new products and/or services; continued funding of U.S. Government or other public sector projects in the event of a priority need for funds, such as homeland security, the war on terrorism or rebuilding Iraq; government contract procurement (such as bid protest, small business set asides, etc.) and termination risks; the results of government investigations into allegations of improper actions related to the provision of services in support of U.S. military operations in Iraq; the results of the appeal of CACI International Inc ASBCA No. 53058; individual business decisions of our clients; paradigm shifts in technology; competitive factors such as pricing pressures and/or competition to hire and retain employees (particularly those with security clearances); material changes in laws or regulations applicable to our businesses, particularly in connection with (i) government contracts for services, (ii) outsourcing of activities that have been performed by the government, and (iii) competition for task orders under Government Wide Acquisition Contracts ("GWACs") and/or schedule contracts with the General Services Administration; our own ability to achieve the objectives of near term or long range business plans; changes that could result from accounting adjustments requested in connection with finalizing our Report on Form 10-K; and other risks described in the company's Securities and Exchange Commission filings.