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Glossary

What is SaaS (software as a service)?

SaaS (software as a service) is a cloud-based software delivery model in which users access applications over the internet, without local installation or their own infrastructure. The provider handles operations, maintenance, and updates. Companies benefit from flexible usage, lower IT overhead, and a usage-based pricing model. Bissantz provides companies with BI-solutions in a SaaS model.

AT A GLANCE

At a glance

  • subscription-based: monthly or annually, often depending on usage
  • the provider handles operations, maintenance, security, and updates
  • platform-independent: access through a browser or app on any device
  • scalable: users and features can be adjusted flexibly
  • BI solutions such as DeltaMaster and DeltaApp are also available as SaaS

What would you like to know about SaaS (software as a service)?

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DEFINITION

SaaS definition

The acronym SaaS stands for software as a service and refers to a cloud-based software delivery model in which applications are provided and accessed over the internet. Instead of installing and managing software locally, users access it through a web browser or mobile app. A SaaS model therefore enables flexible use across different devices and typically offers usage-based or subscription-based pricing, reducing both costs and administrative overhead.

The provider is responsible for operating, maintaining, and securing the underlying infrastructure. Companies therefore do not need to host, maintain, or regularly update the software themselves. SaaS eliminates the need to invest in expensive hardware or IT expertise to manage the software. Instead, companies benefit from fast implementation, automatic updates, and high scalability.

Common examples of SaaS solutions include collaboration tools such as Slack, cloud-based office solutions such as Microsoft 365, and CRM systems such as Salesforce. Business intelligence solutions such as DeltaMaster and DeltaApp can also be used as SaaS.

„We use DeltaMaster as SaaS and access our reports from anywhere via the browser. Bissantz handles updates and operations, noticeably relieving our IT.“
Head of Controlling
Mechanical engineering
HOW IT WORKS

How does SaaS work? – the SaaS business model

Under the SaaS business model, software applications are centrally hosted in the cloud and fully managed by the provider, allowing customers to access them flexibly at any time without local installation. The key characteristics of the SaaS model are:

  • Cloud-based delivery: The provider hosts, maintains, and updates the software, while customers access it through a web browser or app.
  • Multi-tenant architecture: A single software instance serves multiple customers while keeping their data and configurations strictly separated.
  • Provider responsibility: The provider is responsible for scalability, data backup, compliance with SLAs, security measures, and regular updates.
  • Service level agreement (SLA): The SLA defines performance and availability standards, data protection requirements, support, and responsibilities.
  • Pricing model: SaaS typically uses usage-based subscriptions, billed monthly or annually. Pricing often depends on the number of users or the scope of functionality.

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COMPARISON

IaaS vs. PaaS vs. SaaS: what is the difference?

The three main models of cloud computing — infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS) — differ significantly in their functionality and areas of application. They address different business needs and shift different IT responsibilities to the provider.

FeatureIaaSPaaSSaaS
What is provided?Servers, storage, networkingInfrastructure + development platformReady-to-use software application
User controlHighMediumLow
Provider responsibilityInfrastructureInfrastructure + platformEverything
ExamplesMicrosoft Azure VMs, AWS EC2Google App EngineMicrosoft 365, Salesforce, DeltaMaster
  • IaaS (infrastructure as a service) provides fundamental IT resources such as servers, networks, and storage. It offers maximum control and flexibility for companies that want to run or develop their own applications without investing in on-premises hardware. It is ideal for variable workloads and cost optimization.
  • PaaS (platform as a service) goes one step further by providing a complete development environment, including hardware, middleware, and development tools. It enables teams to develop, deploy, and scale applications quickly and cost-effectively without having to manage the underlying infrastructure.
  • SaaS (software as a service) provides a ready-to-use software solution that can be accessed over the internet. Users neither need to develop applications nor manage IT resources; they simply access the hosted services. This is ideal for standardized applications such as CRM, ERP, or email.

The right model depends on the company’s requirements: IaaS and PaaS are primarily designed for developers and IT teams, with IaaS offering maximum control and PaaS making it easier to develop custom solutions. SaaS stands out for its ease of use and is aimed at end users who need ready-to-use applications.

COMPARISON

What is the difference between a SaaS cloud solution and an on-premises solution?

Cloud and on-premises solutions differ fundamentally in how they are delivered and managed. With SaaS, the software is provided through the cloud, while the provider manages the entire technical infrastructure and regular updates. By contrast, on-premises solutions are installed directly on a company’s internal servers and devices, require extensive maintenance by the IT department, and are typically based on one-time license purchases.

FeatureSaaSOn-premises
DeliveryCloud, through the providerLocally on company-owned servers
InstallationNone — accessed through a browserRequired, handled by the IT department
Maintenance and updatesFully managed by the providerManaged by the internal IT department
Cost structureOngoing subscription costsHigh upfront investment, ongoing operating costs
ScalabilityFlexible, can be adjusted quicklyLimited, dependent on hardware
Data controlWith the provider, subject to contractual safeguardsFully controlled by the company
Best suited forFast implementation, limited IT resourcesHigh data protection requirements, specific customization needs

The cost structure also differs: On-premises solutions often require substantial upfront investments, while SaaS is typically funded through subscriptions. Since the two approaches address different business needs and strategies, the choice between them depends on a company’s specific requirements and priorities.

The people shown were generated with artificial intelligence and are fictitious.

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BENEFITS

What are the benefits of SaaS?

Software as a service offers companies and users numerous benefits that traditional software models often cannot match, making SaaS an attractive option for businesses:

Cost efficiency

SaaS solutions do not require large upfront investments in hardware or software because everything is provided through the cloud, and companies generally pay only for the services they actually use.

Automatic updates

SaaS providers handle regular software updates and security patches, ensuring that users always have access to the latest version without having to take action themselves.

Low IT overhead

The provider handles infrastructure maintenance and management, reducing the burden on internal IT resources.

Scalability

Companies can easily adjust software usage to their current needs and pay only for the resources they actually use. Additional users or features can be added or removed at any time.

Fast implementation

SaaS solutions are often immediately available and ready to use without complex installation processes, enabling rapid deployment across the organization.

Accessibility and flexibility

SaaS is platform-independent and can be used on different devices such as PCs, tablets, and smartphones — making it ideal for remote work and distributed teams.

High level of security

SaaS services provide comprehensive protection for data and applications through centralized management and specialized security measures.

CHALLENGES

What challenges does SaaS entail?

Despite its many advantages, the SaaS model also entails potential challenges:

  • Dependence on the internet: SaaS applications require a stable internet connection, which means that outages or poor availability can be highly problematic.
  • Data security and data protection: Storing sensitive data in the cloud requires comprehensive security measures to comply with data protection policies and minimize risks.
  • Migration: Switching from local solutions to SaaS can, under certain circumstances, be time-consuming and technically demanding.
  • Limited customization options: Some SaaS solutions offer only limited options for individual adaptation to specific company requirements, especially compared to on-premises software.
EXAMPLES

Use cases: Where is SaaS used?

SaaS models are used in nearly all areas of a company where software is to be used without local installation and with minimal IT effort. The following examples show typical fields of application by department.

Controlling and Business Intelligence

BI solutions such as DeltaMaster are delivered in the SaaS model, so that reports, dashboards, and analyses are available regardless of location via the browser. Preconfigured data models shorten the time to deployment.

Sales and CRM

Cloud-based CRM systems manage customer contacts, quotes, and sales processes centrally. Field staff access current data on mobile devices without having to maintain their own infrastructure.

Communication and Collaboration

Office and collaboration tools such as Microsoft 365 or Slack are used as SaaS. Teams work on documents across locations and exchange information in real time.

Accounting and human resources

Financial accounting, payroll, and HR administration are increasingly run via SaaS solutions. Legal updates, such as changes to tax rates, are entered centrally by the provider.

E-commerce and inventory management

Online shops and inventory management systems are operated as SaaS to manage orders, stock levels, and payment processing. Peak loads in seasonal business can be absorbed flexibly.

IT service and support

Ticketing systems and helpdesk applications are deployed as SaaS to capture, assign, and track service requests. Service teams access the current processing status centrally without operating their own servers.

Where would you like to use SaaS (software as a service)?

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Bissantz and SaaS

Bissantz also offers powerful business intelligence solutions in the SaaS model with DeltaMaster and DeltaApp. The focus is on user value: Instead of complex technical installations, companies get direct access to a ready-to-use application—regardless of location, device, or internal IT infrastructure.

Mid-sized companies in particular benefit from DeltaMaster as a SaaS solution: They get a full-featured BI platform with preconfigured data models, reports, and dashboards—ready to use in the secure Bissantz data center or on a partner’s platform.

Bissantz’s SaaS offering combines the benefits of modern cloud delivery — including automatic updates, low IT overhead, and high scalability—with the proven strengths of Bissantz products: intelligent data analysis, clear, intuitive visualization, and efficient decision support. With multi-tenancy and role-based access control, the solution is suitable both for individual companies and for enterprise structures with distributed organizational units.

For customers with higher data protection or IT governance requirements, Bissantz also offers flexible hybrid or private cloud models—including deployment within the customer’s own infrastructure (on-premises). This means that the choice between SaaS and other deployment models is determined by the optimal use case, not by technical limitations.

FunctionBenefit
Preconfigured data models and reports immediately usable BI platform without time-consuming installation
Operation in the Bissantz data center secure access independent of location and internal IT
Multi-tenancy and role-based access control suitable for single companies as well as group structures
Automatic updates low IT effort with high scalability
Hybrid or private cloud models flexible deployment with increased data protection requirements
„With the cloud-based provision, we were able to get started quickly without our own infrastructure and flexibly connect additional users as needed. The preconfigured data models made it easier for us to get started.“
Head of IT
Retail company
FAQ

Frequently asked questions

What is SaaS in simple terms?

SaaS means that you don’t buy software and install it on your computer. Instead, you use it over the internet—similar to using Netflix without buying DVDs. You sign in, work in a browser or app, and the provider takes care of everything technical in the background: servers, updates, and security. Users typically pay monthly or annually — only for what they actually use.

What is the difference between SaaS and the cloud?

Cloud is the broader term for IT services delivered over the internet, including infrastructure (IaaS), development platforms (PaaS), and software (SaaS). SaaS is a specific form of cloud usage: ready-to-use software applications delivered through the cloud. Not every cloud solution is SaaS—but every SaaS solution is a cloud solution.

Is SaaS secure for sensitive business data?

SaaS providers invest heavily in security measures—often more than individual companies could afford to implement themselves. However, contractual safeguards are critical, including GDPR-compliant data processing, data residency (EU-based servers), encryption, and clear SLAs. For particularly sensitive data, providers such as Bissantz also offer private cloud or on-premises options.

Which companies benefit most from SaaS?

SaaS is particularly well suited to companies that want to get started quickly, do not want to maintain extensive IT infrastructure, or are growing rapidly and need to scale flexibly. Mid-sized companies benefit in particular: They get enterprise-grade functionality without an enterprise IT budget. SaaS is also ideal for distributed teams and organizations with remote work models.

SUMMARY

Summary

SaaS has fundamentally changed the way companies use software. Instead of large upfront investments, complex installations, and extensive IT administration, SaaS provides immediate availability, automatic updates, and flexible scalability. With DeltaMaster and DeltaApp, Bissantz offers powerful BI solutions in a SaaS model — combined with the flexibility to switch to hybrid or on-premises models when needed. This allows the deployment model to adapt to the company’s requirements — not the other way around.

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