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Chapter 10

Chapter 10 Vocab

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McGill University
Management Core
MGCR 331
Richard Donovan

Chapter 10: Software in Flux: Partly Cloudy and Sometimes Free Key Terms - open source software: software that is free and where anyone can look at and potentially modify the code. - Cloud computing: replacing computing services with services provided over the internet. - Software as a services (Saas): a form of cloud computing where a firm subscribes to a third-party software and receives a service that is delivered online. - Virtualization: a type of software that allows a single computer to function as if it were several different computers, each running its own operating system and software. - Linux: an open source software operating system. - OSS is free irt downloads, but also free as in anyone can look at the source cofe, change it, and redistribute it. - Reasons for choosing open source products over commercial alternatives: o Cost --- save money using OSS o Reliability – the more people who look at a program’s code, the greater the likelihood that an error will be caught and corrected – harnessing the power of many people o Security --- with many eyes looking at the code, the security vulnerabilities of open source products come to light more quickly and can be addressed with greater speed and reliability o Scalability – run on everything, from cheap commodity hardware to high-end supercomputing w/out having to significantly rewrite code. o Agility and time to market - Just about every type of commercial product has an open source equivalent - Open source is a 60 billion dollar industry, but has a disproportionate impact on the trillion-dollar IT market. - How do vendors make money on open source? o Selling support and consulting services o Service - Linux is not found on a lot of desktop computers – not as easy to install as Windows, very complex, and such a small number of users makes third party firms disinclined to make apps for it. - But in developing nations, the cost of Windows can be daunting – o Microsoft has begun offering low cost versions in these nations b/c they realize that if a generation grows up on open source they might prefer it to Windows. - Risks of open source o Some products difficult to install and maintain – higher total cost of ownership o Legal exposure o Licensing standards - Clouding computing: replacing computing resource (hardware or software) with services provided over the Internet. o 1. Software as a service (Saas)– where a firm subscribes to a third- party software-replacing service that is delivered online o 2. Utility computing – where an organization develops its own systems, but runs them over the Internet on someone else’s hardware. - Private clouds: pools of computing resources that reside inside an organization and that can be served up for specific tasks as need arrives. - Software as a Service: you can get the bulk of your computing done through your Web browser. o Made available by a third party online o Firms can dramatically lower costs w/ care of their information systems o SaaS earn money via a usage-based pricing model o Better than making the huge risk of buying a new software – you can reduce your payment/use per month o Highly scalable o Vendors sign a service level agreement with their customers to ensure a guaranteed uptime and define their ability to meet demand spikes. o Cuts distribution costs
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