Page 49 - Application-led Cloud Sales- Cloud Week

Student Supporting Notes

(1) Growth (exponential) in no. of connected devices (red line) especially looking into near-term future (Cloud, Internet of Things,
etc).

(2) Early systems were the provenance of business, so no. users determined by size of business (no. of employees).

(3) Mainframe hardware & system software very expensive & no COTS (applications internally developed)

(4) Client/server allowed systems to be created on lower capacity/performance hardware and drove rapid expansion through COTS
and relational D/B but still mainly internally focussed

(5) Distribution of processing (to support growth/scale) brought additional complexity, more components and more points of failure

(6) As PCs became commonplace and commoditised, necessary to support external access so applications became “webified” but
still mainly “composite” in nature (1 application doing multiple processing tasks)

(7) Now evolving to much more fine-grained “applets” to enable decomposition of complex process and web-scale deployment