untitledIT IT IT IT 1 IT 2 Software as a Service (SaaS3) IT SaaS 4 SaaS SaaS PC SaaS SaaS Web SaaS ID IT SaaS IT 1 2 3 Software as a Service ASP(Application Service Provider) SaaS 4 ASPIC SaaS SaaS SaaS SaaS ASP IPA SaaS SaaS IT IT SaaS SaaS ASP i 1. ····································································- 1 - 1.1. ······························································- 2 - 2. SaaS ··
