The general purpose cloud is built following the Infrastructure-as-a-Service (IaaS) model; as a platform best suited for use cases with simple requirements. The general purpose cloud user requirements themselves are typically not complex. However, it is still important to capture them even if the project has minimum business and technical requirements such as a proof of concept (PoC) or a small lab platform. These user considerations are written from the perspective of the organization that is building the cloud, not from the perspective of the end-users who will consume cloud services provided by this design. Cost Financial factors are a primary concern for any organization. Since general purpose clouds are considered the baseline from which all other cloud architecture environments derive, cost will commonly be an important criteria. This type of cloud, however, does not always provide the most cost-effective environment for a specialized application or situation. Unless razor-thin margins and costs have been mandated as a critical factor, cost should not be the sole consideration when choosing or designing a general purpose architecture. Time to market Another common business factor in building a general purpose cloud is the ability to deliver a service or product more quickly and flexibly. In the modern hyper-fast business world, being able to deliver a product in six months instead of two years is often a major driving force behind the decision to build a general purpose cloud. General purpose clouds allow users to self-provision and gain access to compute, network, and storage resources on-demand thus decreasing time to market. It may potentially make more sense to build a general purpose PoC as opposed to waiting to finalize the ultimate use case for the system. The tradeoff with taking this approach is the risk that the general purpose cloud is not optimized for the actual final workloads. The final decision on which approach to take will be dependent on the specifics of the business objectives and time frame for the project. Revenue opportunity The revenue opportunity for a given cloud will vary greatly based on the intended use case of that particular cloud. Some general purpose clouds are built for commercial customer facing products, but there are plenty of other reasons that might make the general purpose cloud the right choice. A small cloud service provider (CSP) might want to build a general purpose cloud rather than a massively scalable cloud because they do not have the deep financial resources needed, or because they do not or will not know in advance the purposes for which their customers are going to use the cloud. For some users, the advantages cloud itself offers mean an enhancement of revenue opportunity. For others, the fact that a general purpose cloud provides only baseline functionality will be a disincentive for use, leading to a potential stagnation of potential revenue opportunities.

Many jurisdictions have legislative and regulatory requirements governing the storage and management of data in cloud environments. Common areas of regulation include: Data retention policies ensuring storage of persistent data and records management to meet data archival requirements. Data ownership policies governing the possession and responsibility for data. Data sovereignty policies governing the storage of data in foreign countries or otherwise separate jurisdictions. Data compliance policies governing certain types of information need to reside in certain locations due to regular issues - and more important cannot reside in other locations for the same reason. Examples of such legal frameworks include the data protection framework of the European Union and the requirements of the Financial Industry Regulatory Authority in the United States. Consult a local regulatory body for more information.

Technical cloud architecture requirements should be weighted against the business requirements. Performance As a baseline product, general purpose clouds do not provide optimized performance for any particular function. While a general purpose cloud should provide enough performance to satisfy average user considerations, performance is not a general purpose cloud customer driver. No predefined usage model The lack of a pre-defined usage model enables the user to run a wide variety of applications without having to know the application requirements in advance. This provides a degree of independence and flexibility that no other cloud scenarios are able to provide. On-demand and self-service application By definition, a cloud provides end users with the ability to self-provision computing power, storage, networks, and software in a simple and flexible way. The user must be able to scale their resources up to a substantial level without disrupting the underlying host operations. One of the benefits of using a general purpose cloud architecture is the ability to start with limited resources and increase them over time as the user demand grows. Public cloud For a company interested in building a commercial public cloud offering based on OpenStack, the general purpose architecture model might be the best choice because the designers are not going to know the purposes or workloads for which the end users will use the cloud. Internal consumption (private) cloud Organizations need to determine if it makes the most sense to create their own clouds internally. The main advantage of a private cloud is that it allows the organization to maintain complete control over all the architecture and the cloud components. One caution is to think about the possibility that users will want to combine using the internal cloud with access to an external cloud. If that case is likely, it might be worth exploring the possibility of taking a multi-cloud approach with regard to at least some of the architectural elements. Designs that incorporate the use of multiple clouds, such as a private cloud and a public cloud offering, are described in the "Multi-Cloud" scenario, see . Security Security should be implemented according to asset, threat, and vulnerability risk assessment matrices. For cloud domains that require increased computer security, network security, or information security, general purpose cloud is not considered an appropriate choice.