MRO SOFTWARE INC. ADDS INVENTORY OPTIMIZATION SERVICE THROUGH ALLIANCE WITH XTIVITY INC.

Bedford, MA and London, ON CANADA – November 15, 2005 – MRO Software Inc., the leading provider of asset and service management solutions, today announced a marketing alliance with inventory optimization specialists XTIVITY Inc. The alliance will enhance the service offering of inventory management solutions for MRO Software customers.

MRO Software will now offer XTIVITY's Inventory Optimizer (xIO™) service as an extension of its asset and service management solutions.

xIO examines a company's transactional inventory data and calculates the appropriate Order Point and Order Quantity for every line item in an M-R-O inventory, using a scientific approach with proven statistical methods. This maximizes fill rates, reduces total inventory cost, and prevents the ongoing purchase of items that will become dead in the future.

"Recent ARC research identified MRO Optimization as a very important asset management trend that delivers significant benefits," said Houghton LeRoy, research director at ARC Advisory Group. "The combined MRO Software and XTIVITY Inventory Management and Optimization solution is positioned as an easy way to achieve MRO Optimization and the associated benefits."

"A typical company could have thousands or even hundreds of thousands of line items in their inventory. They may be able to manually review 1% of these items to see if Order Points and Order Quantities are accurate on an annual basis," said Ned Meyer, vice president, XTIVITY. "The xIO, in contrast, examines 100% of these items each and every month, and optimizes Order Points and Order Quantities accordingly. This typically results in savings of up to 10% of total inventory value that can be driven directly to the bottom line."

"Many Maximo customers, for example, have more than $10 million in MRO inventory. Their savings through the xIO service would be significant," he added.

"Our clients can now extend the cost saving capabilities delivered with Maximo Enterprise Suite to include M-R-O inventory optimization using the xIO service," said Joe Catalanotti, senior product marketing manager, MRO Software. "This alliance with XTIVITY allows us to deliver bottom-line inventory cost savings to our customers, and is a distinctive solution combination that we're making available to the market."

MRO Software has been using the xIO service technology for several years. This marketing alliance reflects the growing demand for the complimentary value offered by the two company's flagship offerings; XTIVITY's xIO and MRO software's Maximo® Enterprise Suite (MXES).

About XTIVITY
Services from XTIVITY Inc. deliver hard cost savings in 90 days, while improving executive confidence in Operations decision-making. XTIVITY's executive team includes experienced leaders in MRO, software development and best practice implementation. The XTIVITY Inventory Optimizer (xIO™) is the only service on the market proven to optimize MRO inventories - while offering unparalleled efficiencies and controls in corporate governance at the Operations level. xIO™ delivers proven results in refining, mining, food, transportation and automotive industries. More information is found at www.xtivity.com.

About MRO Software Inc.
MRO Software is the leading provider of asset and service management solutions. Maximo Enterprise Suite, the Company's flagship solution, is delivered on a web-architected platform and increases productivity, optimizes asset performance, and service levels, reduces costs and enables asset-related sourcing and procurement across the entire spectrum of strategic assets.

The Company's asset management solutions allow customers to manage the complete lifecycle of strategic assets including: planning, procurement, deployment, tracking, maintenance and retirement. Using MRO Software's solutions, customers improve production reliability, labor efficiency, material optimization, software license compliance, lease management, warranty and service management across the asset base.

MRO Software (Nasdaq: MROI) is a global company based in Bedford, Mass., with approximately 900 employees, and more than 300,000 end-users. The Company markets its products through a direct sales organization in combination with a network of international distributors. MRO Software has sales offices throughout North America, Europe, Asia/Pacific and Latin America. Additional information on MRO Software can be found at www.mro.com.

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