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The FAA Advanced Automation System (AAS) was designed to replace outdated equipment and consolidate air traffic control facilities. Although the system failed, alternatives such as modern display systems and tracking software have been implemented.
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FAA AASFederal Aviation Administration Advanced Automation System • Designed to replace aging equipment from ‘60s and ‘70s • Also consolidate ~200 tracons into ~20 en-route centers • 1981-1994, cost billions of $ • Some parts of new equipment (controller workstations) used, but system as a whole failed • Consolidation idea abandoned
FAA AAS Requirements • Distributed system • 99.99999% availability (3 sec/year downtime) • No paper (electronic flight slips) • New hardware • New software and decision support
FAA AAS Problems • Design contest IBM vs. Hughes • 1983 to 1988 • Detailed design of software but no coding • Voluminous documentation • Implementation by IBM • Many levels of bureaucratic oversight by FAA • Changing requirements, but not what controllers wanted
FAA AAS Alternatives • Modern display system + tracking software at High Desert Tracon • Needed to track fast military aircraft • Separate project funded by DoD • Open system, COTS equipment (Sun), evolutionary progress of components • PC-based display developed in secret by FAA engineers
FBI VCFFederal Bureau of Investigations Virtual Case file • 9/11 – FBI failed to “connect the dots” and obtain a full picture • Agents could not correlate data from different sources and investigations • Work processes are paper-based • Need to replace obsolete Automated Case Support system • And consolidate many other databases and applications • Actually started in 2000, accelerated after 9/11 • Cancelled in Apr 2005 after costing $170M
FBI VCF Plan • Replace essentially all diverse FBI IT infrastructure • 800-page requirement document • Specifies design details like web-page layouts rather than what the system should do • Aggressive deadlines but no milestones or detailed schedule • Use a “flash cutover” – log off old system on Friday and into new system on Monday
FBI VCF Problems • Lack of overall encompassing architecture • Many change requests once agents saw prototypes (using spiral model) • Resulting schedule slips
FBI VCF Replacement: Sentinel • 6 years development, ~$440M • In operation since July 2012 • Success credited to shift from waterfall to agile in 2010 • Also use significant off-the-shelf products
USCIS ELISUS Citizenship and Immigration Services Electronic Immigration System • 8 M applications a year, all paper, requiring sending forms between offices • Plan: computerize 95 forms and pay 40 fees online by 2013, cost of 500 M$ • 2015 status: 1 form and 1 fee are working, cost 1.7 B$ • Application to renew or replace lost green card • 2 other forms were pulled due to problems • Projected completion 2019, cost 3.5 B$
USCIS ELIS Problems • 2008 contract to IBM using waterfall • Requirements complete only in 2011 • Takes up to 150 clicks to review an application • Navigate menus, open documents, etc. • Test: complete 0.86 cases/hour, compared with 2.16 with paper forms • Integration of 29 commercial software products • 2013: switch to multiple vendors, more agile • But 4-month work cycle • 2015: switch to cloud platform