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Recently, software distribution and use methods have been changed from a method where a user possesses software to a method where software is provided as a service through the Internet (which means Software as a Service and is referred hereinafter as ‘SaaS’). According to the SaaS method, since the software and data are not possessed by the users, the supply of the service may be unexpectedly interrupted and the danger of data loss may exist due to the close-down of business or default of the service-supplying company, natural calamities and disasters, and the like. As a result, customers are demanding greater assurances that their SaaS providers can guarantee service availability, security and privacy. Thus, it is necessary to make a plan for protecting the users from the various dangers as mentioned above by active development of the SaaS industry. The escrow agreement enables the SaaS customer to gain access to the SaaS application and significant data if release conditions are met, such as the SaaS service provider going out of business or being acquired by another company that is no longer willing to support the on-demand application. As a similar service to the user-protecting plan, a technology escrow service is provided to escrow the technical materials(the functional, executable, object code, procedural instructions, and all the necessary components to make that application function correctly) of the software-developing company to a reliable third-party entity (escrow agent), which protects technical material and users’ data, and also ensures a stable business operation of the software-user. Especially, SaaS escrow service performs continuous real-time back-ups, so users can recover server data at any time, or archive data long-term. The above-mentioned problems have been solved through SaaS escrow service by civil groups in U.S.A., United Kingdom, and so on for 25 years. However, in Korea, the SaaS escrow service has just started, so that the businesses related to the SaaS escrow service are not developed actively by the market. So as to facilitate the development of the SaaS industry, therefore, a so-called ‘SaaS data protection center’ is built by government to protect the SaaS users, so that the source codes of the SaaS service are escrowed and the support systems like real-time update and data backup of the SaaS service provided currently are established. Furthermore, the center is operated by private management after a predetermined time has elapsed, so that the SaaS escrow market is operated by the management of the civil groups and various SaaS escrow services are competitively provided.


Recently, software distribution and use methods have been changed from a method where a user possesses software to a method where software is provided as a service through the Internet (which means Software as a Service and is referred hereinafter as ‘SaaS’). According to the SaaS method, since the software and data are not possessed by the users, the supply of the service may be unexpectedly interrupted and the danger of data loss may exist due to the close-down of business or default of the service-supplying company, natural calamities and disasters, and the like. As a result, customers are demanding greater assurances that their SaaS providers can guarantee service availability, security and privacy. Thus, it is necessary to make a plan for protecting the users from the various dangers as mentioned above by active development of the SaaS industry. The escrow agreement enables the SaaS customer to gain access to the SaaS application and significant data if release conditions are met, such as the SaaS service provider going out of business or being acquired by another company that is no longer willing to support the on-demand application. As a similar service to the user-protecting plan, a technology escrow service is provided to escrow the technical materials(the functional, executable, object code, procedural instructions, and all the necessary components to make that application function correctly) of the software-developing company to a reliable third-party entity (escrow agent), which protects technical material and users’ data, and also ensures a stable business operation of the software-user. Especially, SaaS escrow service performs continuous real-time back-ups, so users can recover server data at any time, or archive data long-term. The above-mentioned problems have been solved through SaaS escrow service by civil groups in U.S.A., United Kingdom, and so on for 25 years. However, in Korea, the SaaS escrow service has just started, so that the businesses related to the SaaS escrow service are not developed actively by the market. So as to facilitate the development of the SaaS industry, therefore, a so-called ‘SaaS data protection center’ is built by government to protect the SaaS users, so that the source codes of the SaaS service are escrowed and the support systems like real-time update and data backup of the SaaS service provided currently are established. Furthermore, the center is operated by private management after a predetermined time has elapsed, so that the SaaS escrow market is operated by the management of the civil groups and various SaaS escrow services are competitively provided.