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They write that " insurgents are advantaged precisely by their lack of legacy systems , legacy assets , and a legacy mindset . Others include switching off ten percent of legacy systems , launching pilots of Web services , and marketing the IT department within the organisation - - presumably raising the CIO 's profile to keep his job . While this analysis of root program elements clearly teaches us something about the structure of the legacy system , it is not clear that root elements form the best candidates for componentization . This workshop will examine in detail several complex projects that have faced obstacles such as size of deployment , compressed schedule , legacy systems , or office politics . Look for more systems-level content to help you deal with legacy systems , security , storage , e-commerce , server management , messaging , and all the aspects of successful systems deployment and management . " When our people are absolutely convinced that it 's safe to turn off a legacy system , we do it , " says Neely . There are a number of factors that affect FFMIA compliance , including the quality of transaction data in agency feeder systems , the success of converting data from legacy systems , and the interaction of people , process , and technology within an agency 's environment . The software will allow AMS packages to interact more closely with legacy systems , making for better tracking of the acquisition processes and closer ties with financial management , logistics , transportation and resource management . Most recently , he has been working on solving very large-scale data problems , using data feeds from legacy systems , on a Linux cluster using resilient computing techniques .