Micromuse Earns ISO 9001 Certification; Leading Standards Organization Recognizes Micromuse's Commitment to Deliver Quality Designed Software to its Customers

Business Wire, June 12, 2000

Business/Technology Editors

SAN FRANCISCO--(BUSINESS WIRE)--June 12, 2000

Micromuse Inc. (Nasdaq: MUSE), the leading provider of fault and service-level management software, today announced that it has received ISO 9001 certification from the International Standards Organization for its core software development facilities and processes based in London. The ISO 9001 TickIT certification was awarded by Det Norske Veritas (DNV), an internationally recognized certification body and leading provider of safety and reliability services including classification, certification verification and advisory services.

"This accreditation underscores Micromuse's commitment to provide products and services recognized worldwide for their standard of quality in design, development, integration, testing, installation and support," said Helen Fairclough, Micromuse's Senior Vice President, Customer Care. "We are extremely pleased to have received this recognition. Software production requires a continuous improvement process aimed at achieving total customer satisfaction and it is critical to our continued success."

ISO 9001 TickIT provides the UK and Swedish software industry with a standard set of guidelines and software production methodology for IT organizations whose business processes range from design and development to production, installation and servicing. As part of its ISO 9001 TickIT certification, Micromuse will use the TickIT logo indicating that the company has been certified and that its software production process meets software development standards defined by ISO 9001 and complies to TickIT guidance and certification procedures.

"This accomplishment represents an outstanding team effort from all Micromuse employees and is a key component to maintaining our quality assurance initiative," said Geoff Vorley, Micromuse Quality Manager. Mr. Vorley is the author of several books on quality assurance, including the best seller, Quality Management (Principles & Techniques).

Micromuse's London facilities earned ISO 9002 certification in June 1996. ISO 9000 is an internationally accepted standard that represents good management practices and aims to ensure that organizations can consistently deliver the products or services that meet their client's quality requirements. Compliance with the ISO 9000 standard is a voluntary practice, and includes a family of standards designated to specify the requirements a business must meet in order to qualify within its business category.

About Netcool

Micromuse's Netcool software suite collects management data from more than 150 management environments and network devices, including voice, data and Internet. Fault data is rapidly processed and filtered by the Netcool ObjectServer(TM), an in-memory database. The Netcool application allows operators to build views of service availability in realtime, helping them manage networks more efficiently. Because it is scalable and deploys rapidly, the Netcool business model allows service providers to expand their networks as their markets grow.

About Micromuse

Micromuse Inc. (Nasdaq: MUSE) is the leading provider of fault and service-level management software. Micromuse was named one of the Top 25 Best Performers in the Wall Street Journal's Shareholder Scoreboard, and has recently been recognized in the Forbes 500, Bloomberg's Top 100 Stocks, Barron's 500, and the San Francisco Chronicle 500. Micromuse customers include AirTouch, AT&T, BT, Cable & Wireless, Cellular One, Charles Schwab, Deutsche Telekom, Digex, EarthLink, GTE, ICG Communications, ITC^DeltaCom, MCI Worldcom, NextLink, and a number of financial investment concerns. Headquarters are located at 139 Townsend Street, San Francisco, Calif. 94107; (415) 538-9090. The Web site is at www.micromuse.com.

Netcool is a registered trademark of Micromuse. All other trademarks and registered trademarks in this document are the properties of their respective owners. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any forward-looking statements contained herein are based on current expectations, but are subject to a number of risks and uncertainties.

The factors that could cause actual future results to differ materially from the forward-looking statements include the following: fluctuations in customer demand, the Company's ability to manage its growth (including the ability to hire sufficient sales and technical personnel), the risks associated with the expansion of the Company's distribution channels, the risk of new product introductions and customer acceptance of new products; the rapid technological change which characterizes the Company's markets, the risks associated with competition, the risks associated with international sales as the Company expands its markets, and the ability of the Company to compete successfully in the future, as well as other risks identified in the Company's Securities and Exchange Commission Filings, including but not limited to those appearing under the caption "Risk Factors" in the Company's most recent Quarterly Reports on Form 10-Q and on Form 10-K on file with the Securities and Exchange Commission and available on the Company's Web site.