What is Verpura?
Verpura is a Cloud based complete solution for small companies. It includes contact management, goods management, office and tools- further information is available at Start.
Verpura includes many modules - some are shown around the Verpura icon. In addition, there are modules that are provided by our partners is available - these partners are down, and the bottom right and bottom left shown. Verpura is operated on servers in the Hetzner Online AG Data Center in Eching. Above are exemplary devices shown which can access Verpura.
Cloud Computing makes it possible.
You access our server online with your device. There your data gets processed and saved. Modern safety barriers protect the server and the files from virus attacks. Furthermore we are available for all questions and we take care of the maintance and administration. For you ,this means optimal infrastructure without effort and local restriction.
What is Cloud Computing?
Cloud Computing means, that something is not executed on a local computer, but on a server. The advantage is that you can access your application anytime and everywhere - equal with what end device (computer, notebook, organizer, mobile phone and so on). Also more users can work on one thing at the same time. Cloud Computing is defined by the american standards organisation Nist like this:
Definition of Cloud Computing by the American standardization Institute NIST
· Broad network access – Capabilities are available over the network and accessed through standard mechanisms that promote use by heterogeneous thin or thick client platforms (e.g., mobile phones, tablets, laptops, and workstations).
· Rapid elasticity – Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand. To the consumer, the capabilities available for provisioning often appear to be unlimited and can be appropriated in any quantity at any time.
Der Cloud-Nutzer gewinnt dadurch die Illusion, dass er unbeschränkten Zugriff auf die Ressourcen
· Measured service –Cloud systems automatically control and optimize resource use by leveraging a metering capability1 at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth, and active user accounts). Resource usage can be monitored, controlled, and reported, providing transparency for both the provider and consumer of the utilized service.
· On-Demand Self-Service – A consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with each service provider..
· Resource pooling – The provider’s computing resources are pooled to serve multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned according to consumer demand. There is a sense of location independence in that the customer generally has no control or knowledge over the exact location of the provided resources but may be able to specify location at a higher level of abstraction (e.g., country, state, or datacenter). Examples of resources include storage, processing, memory, and network bandwidth.
CLOUD Service Models
The NIST-model distinguishes between three archetypal service models, in technical literature abbreviated as "SPI-model", which denominates (Software, Platform and Infrastructure) .Those 3 models differ in regard to the content of the services, which are available for the cloud user.
· Software as a Service (SaaS) - with this cloud service the user uses the software applicationswhich are operated on a cloud infrastructure and offered to him by the cloud provider. The cloud user accesses over a web browser via different devices to the desired software application. The cloud user has neither control over the cloud infrastructure, which is offered to him nor over the software applications. Typical example for SaaS are e.g. salesforce.com, SAP Business by Design, Apple iWork.com, Google Apps for Business, Microsoft CRM online.
· Platform as a Service (PaaS) - this variant offers the cloud user the possibility of creating and operating own software applications on the development platform, which is provided by a platform. In contrast to SaaS the cloud user has while using this serivce control over the software application. Examples for PaaS are Google Apps Engine, Windows Azure and IBM Smart Business Developement.
· Infrstructure as a Service (IaaS)- Spirit and purpose of this cloud service is to provide calculation time, disk space, network and other IT components for the cloud user, so that he is able to operate his own software applications. With this cloud service the cloud user has no control over the cloud infrastructure , but over the operating system , the storage, the used software applications and under certain circumstances over single components (e.g. Firewall). Typical examples for this cloud service are Oracle, IBM and Amazon EC2,S3.
· Public cloud – The cloud infrastructure is provisioned for open use by the general public. It may be owned, managed, and operated by a business, academic, or government organization, or
some combination of them. It exists on the premises of the cloud provider.
· Private cloud – The cloud infrastructure is provisioned for exclusive use by a single organization comprising multiple consumers (e.g., business units). It may be owned, managed, and operated by the organization, a third party, or some combination of them, and it may exist on or off premises.
· Community cloud – The cloud infrastructure is provisioned for exclusive use by a specific community of consumers from organizations that have shared concerns (e.g., mission, security requirements, policy, and compliance considerations). It may be owned, managed, and operated by one or more of the organizations in the community, a third party, or some combination of them, and it may exist on or off premises.
· Hybride cloud – The cloud infrastructure is a composition of two or more distinct cloud infrastructures (private, community, or public) that remain unique entities, but are bound together by standardized or proprietary technology that enables data and application portability (e.g., cloud bursting for load balancing between clouds).