What potential latency issues can arise in a Cloud?
Answer: The geographical distance between the source of the data and the client using it is usually quite large. This means that there is always a lag time between the transmission of data between client and service provider. This makes instantaneous operations very problematic. Good examples would be Cloud providers hosting high-end graphics games. These would be hard to play owing to the latency issues as discussed since there will always be a delay between ‘Button pressed at user’s end’ and ‘the action taken in the game itself.’
What factors can be used to evaluate a SaaS setup?
Answer:The following factors are important as applied to SaaS: Time to value Trial period – How long is the trial period of the service? Low entry costs Offered Service – What is the level of service required? Total Investment – How much investment is required in your choice of Cloud? Security – How secure is your data? Reduced Capital Expense – How much you save when you switch to another service?
What are Mobile Cloud clients?
Answer: Mobile clients run the service from their laptops to PDAs and smartphones, e.g. BlackBerry or iPhone. Although some applications are not supported by such a setup but as the popularity of mobile devices is on the high, most of the providers are turning their heads to Mobile solutions for Cloud Computing. Mobile cloud clients do not access the cloud from their systems astheir choice resides with gadgets they can use ‘on the go’.
What are the subcategories of SaaS?
Answer: SaaS can be divided into two major categories: Customer-oriented services – Offered to general public on a subscription Line of business services – Offered to enterprises and companies via subscription
In the context of SaaS, what is an SOA?
Answer: SOA or service-oriented architecture covers current and future requirements. From EDI (Electronic Data Exchange) to online auctions, SOA covers it all. SOA plays an important role in integrating smaller services to provide smooth business processes. SOA improves system quality and it is quite similar to SaaS. SOA is just another name given to software as a service. It can bethought of as cloud architecture just like PaaS.
