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ACCA Strategic Professional · Strategic Business Leader · Enabling success: disruptive technologies

Halden Retail, a mid-sized chain, wants to launch an online loyalty app within weeks. It has no spare data-centre capacity and wants to rent ready-made development tools, databases and runtime environments without managing servers or operating systems, while still writing and controlling its own application code. Which cloud service model best fits this need?

Platform as a Service is the best fit. The provider manages servers, operating systems and runtime tools, while Halden develops and controls its own application code. SaaS offers only finished software, and IaaS would leave Halden responsible for managing operating systems and middleware.

  1. ASoftware as a Service (SaaS)
  2. BPlatform as a Service (PaaS)Correct
  3. CInfrastructure as a Service (IaaS)
  4. DPrivate cloud hosted on premises

Explanation

PaaS supplies the development platform, runtime and database tools while the provider manages servers and operating systems; the customer controls its own applications. SaaS would deliver a finished product, so Halden could not build its own app. IaaS would leave Halden managing operating systems and middleware.

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