A Reusable Nathan Fleener Lightweight Executive for Command Control Systems Laura Moody Boeing Phantom Works P.O. Box 3999 MS 3F-70 Seattle, WA 98124-2499 253-657-2890 Laura.L.Moody@boeing.com and Mary Stewart Boeing Phantom Works P.O. Box 3999 MS 3F-70 Seattle, WA 98124-2499 253-657-3878 Mary.E.Stewart@boeing.com Boeing Phantom Works P.O. Box 3999 MS 3F-70 Seattle, WA 981.24-2499 253-657-l 192 Nathan.C.Fleener@boeing.com 1. ABSTRACT Customized systems are expensive to build, maintain and upgrade. Companies have large investments in legacy systems running on obsolete hardware. These systems carry high hardware maintenance costs with limited growth potential. New systems today must be resilient to changing hardware and system requirements. The Lightweight Executive contains a cooperating set of scheduling and data management services. A layered architecture allows systems to evolve without impacting proven components. Ada95 [l] provides the support these mechanisms needed to customizations across multiple product lines. The Lightweight Executive utilizes the Ada95 runtime and leverages off of compiler vendors for portability. Legacy systems have been utilizing the upgraded successfully Lightweight Executive. New product lines now benefit from this proven infrastructure. 1.1 Keywords Ada, executive, portability 2. INTRODUCTION The Boeing Open Systems Architecture (OSA) is a suite of reusable applications and core components for Command, Control and
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A reusable lightweight executive for command and control systems
Fleener, Nathan; Moody, Laura; Stewart, Mary
Follow ACM SIGAda Ada Letters
, Volume XVIII (6)
Association for Computing Machinery – Nov 1, 1998
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