Problem statement : Software interfaces ...expire content on the client/server side. Opportunity: Given the context and scope of the network viz. 3-tier access , mediums like internet/www. programmatic interfaces to expire the cache-able content on the client side and server-side ...ability to remove many a potential inconsistencies in the behaviour of the software( also in the context one may refer synonymous situation say snooping of activity as result of malware substituting original binaries installed or shipped ...in the context of OS ...potentially that can be circumvented by recompilation or rebuilding the stack of applications on reboot of the OS) Note: The above problem statement having been encountered in various scenarios and detailed in various 'Proof of concepts' as mentioned in 'http://uk.geocities.com/ravivenkatus/projects.pdf' ....apply appropriate 'use-case' modeling, rationalize and arrive at a workable and feasible solution both commercially and techinically viable.