There are various cloud-based resources and services your business may need to function effectively. These include Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-as-a-Service (SaaS). Depending on your business requirements, you may need only one of these models, or you could need all three models to work together as one.
Infrastructure-as-a-Service (IaaS) is popular amongst business owners as it covers all the basic IT requirements of small to medium businesses. This includes virtual networks, data storage, operating systems, and servers, all of which can be operated by a public, private, or hybrid, cloud-based system. The affordability of an IaaS service model is the main attraction for many, as the service operates on a pay-for-use system.
The Platform-as-a-Service model gives businesses who can manage their own applications greater flexibility without having to run a physical server within their office space. A cloud computing services provider gives a business the cloud infrastructure needed to operate its cloud-based system, while still offering control over how it is run and the applications it uses. The main benefit of a PaaS system is that is easily scalable and allows for collaborative work on one project within the system.
Software-as-a-Service is based on only offering the cloud computing software needed for your business. This is typically offered as a pay-per-use scheme or as a subscription-based service. SaaS is increasingly popular amongst businesses that need multiple mobile devices to operate remotely within the same network, such as mobile sales representatives. Unlike PaaS, SaaS is managed by the cloud-based provider and your business does not have to perform any IT management yourself.