Choosing business software involves more than comparing features. You also need to understand how the application is delivered, what you will pay over time, and what happens to your information if you change providers.
Software as a Service, usually shortened to SaaS, offers a way to use applications without operating the underlying infrastructure yourself. It can simplify access and maintenance, but it also creates dependencies on the provider, internet connectivity, and subscription terms.
This complete guide to SaaS explains how the model works, its practical benefits, and the costs and limitations to consider. It also provides a step-by-step approach to choosing, introducing, and managing SaaS applications.
What Is SaaS?
SaaS stands for Software as a Service. It is a cloud service model in which customers use applications operated by a provider on cloud infrastructure.
NIST’s definition explains that customers use the provider’s applications while generally leaving the underlying infrastructure under the provider’s control. Customers may still configure application settings available to them. CSRC
Access commonly happens through a browser, mobile application, or desktop client. Payment may involve subscriptions, usage charges, free tiers, or a combination.
A subscription alone does not make software SaaS. Some locally installed applications also use subscription licensing. The important distinction is how the application is delivered and operated.
A Simple SaaS Example
Consider a hypothetical business using an online customer management system.
Employees sign in to record inquiries, assign follow-ups, and review customer information. The provider operates the application and its underlying infrastructure.
The business still needs to manage user access, maintain accurate records, configure workflows, and train employees.
How SaaS Works
A typical SaaS arrangement involves several parts:
- The provider runs the application. It manages the service’s underlying technology.
- The business creates an account. An administrator selects a plan and configures access.
- Users access the service. They work through supported browsers or applications.
- The provider maintains the service. Updates are delivered according to its operating model.
- The customer manages business use. Staff maintain data, permissions, and working practices.
The exact division of responsibilities depends on the product and contract.
Do not assume that the provider handles every security, backup, or recovery requirement simply because the software is cloud-based.
SaaS, PaaS, and IaaS: What Is the Difference?
These are different cloud service models.
| Model | What the customer receives | Typical purpose |
|---|---|---|
| SaaS: Software as a Service | An application to use | Running business activities |
| PaaS: Platform as a Service | An environment for developing and deploying applications | Building software |
| IaaS: Infrastructure as a Service | Computing resources such as virtual servers and storage | Operating technical infrastructure |
SaaS generally leaves more infrastructure management with the provider than PaaS or IaaS. However, customers retain responsibilities, particularly around how the service is configured and used. IBM
For most businesses choosing an application, SaaS evaluation centers on workflow fit, information handling, reliability, and cost.
Common Types of SaaS Applications
| Category | Typical uses | Important evaluation question |
|---|---|---|
| Customer management | Contacts, inquiries, and sales follow-ups | Can staff maintain clear customer records? |
| Accounting | Invoicing, expenses, and reporting | Does it meet relevant accounting needs? |
| Collaboration | Documents, calendars, and communication | Can the team work consistently across devices? |
| Project management | Tasks, deadlines, and approvals | Does it make responsibilities clear? |
| Customer support | Tickets and service conversations | Can requests be tracked through resolution? |
| Marketing | Campaigns, publishing, and reporting | Does it support the intended audience and channels? |
| Human resources | Employee records and administrative workflows | Are permissions and sensitive records handled appropriately? |
Products may cover several categories. Compare the capabilities you need rather than assuming that a larger bundle provides better value.
Benefits of SaaS for Businesses
Less Infrastructure to Operate
SaaS can reduce the need to purchase and maintain servers for the application.
However, businesses may still need suitable devices, connectivity, administration, and technical support.
Access Across Locations
Supported users can often access the same service from different locations.
This can help distributed teams work from shared records. Access still depends on supported devices, permissions, and available connectivity.
Provider-Managed Updates
The provider usually delivers application updates.
This reduces some maintenance work, but changes may affect interfaces, integrations, or established processes. Critical workflows should be checked after significant updates.
Flexible Purchasing Options
Some services allow businesses to add users or change plans as needs evolve.
Contract commitments, minimum charges, and downgrade restrictions may limit that flexibility. Confirm the terms before relying on it.
SaaS Limitations and Risks
Ongoing Costs
A manageable monthly fee can become substantial as users, storage, and usage increase.
Compare costs over a realistic period rather than considering the initial price alone.
Dependence on the Provider
Outages, pricing changes, feature removals, or service closure can affect operations.
An exit plan and a continuity procedure help reduce disruption.
Limited Customization
SaaS applications may provide configuration options without allowing fundamental changes.
A highly specialized workflow may require an integration, custom development, or another delivery model.
Connectivity Requirements
Some applications require a reliable connection for most tasks.
Offline capabilities vary. Test whether essential work can continue and how changes synchronize afterward.
Data Portability
An export may contain records but omit attachments, permissions, comments, or workflow history.
Being able to download a file does not necessarily mean the business can migrate easily.
Complete Guide to SaaS: How to Choose the Right Application
1. Define the Business Problem
Begin with a specific need.
For example:
“We need a shared system that records customer inquiries, assigns responsibility, and shows overdue follow-ups.”
This provides a stronger basis for evaluation than “we need modern software.”
2. Document Essential Requirements
Separate requirements from preferences.
| Priority | Example |
|---|---|
| Essential | Individual user accounts and appropriate permissions |
| Essential | Export of customer records |
| Essential | Mobile access for field staff |
| Useful | Integration with business email |
| Optional | Advanced visual customization |
Keep the list focused enough to test.
3. Check the Exact Plan
Features may vary between subscription tiers.
Confirm whether the proposed plan includes required administration, integrations, exports, and support. A demonstration may show capabilities unavailable in the plan you intend to buy.
4. Test Real Work
Use representative tasks during the trial.
Ask employees to enter a record, correct an error, retrieve information, complete an approval, and export data.
Include difficult cases such as missing information, large files, and slower connections.
5. Review Provider Terms
Read the pricing, service agreement, and relevant data policies.
Check renewal, cancellation, retention after termination, support commitments, and any applicable service-level agreement.
For important commitments, clarify ambiguous terms before purchasing.
Understanding SaaS Pricing
Common pricing approaches include:
| Pricing model | How charges work | What to watch |
|---|---|---|
| Per user | Charges depend on licensed users | Inactive accounts and guest definitions |
| Usage-based | Charges depend on consumption | Variable bills and overage rates |
| Tiered plans | Each plan includes a defined feature set | Essential features restricted to higher tiers |
| Flat subscription | A fixed charge covers a stated allowance | Limits and additional charges |
| Combined pricing | Subscription plus usage or add-ons | Total cost across several components |
Check official pricing pages because fees, bundles, and limits can change.
Calculate the Full Cost
Include:
- Subscription charges.
- Implementation and migration.
- Training.
- Integration work.
- Additional storage or usage.
- Ongoing administration.
- Backup arrangements where needed.
- Future migration.
Illustrative example: Twelve users at $15 per month would cost $180 monthly, or $2,160 annually. Adding $600 for setup and $300 for training brings the illustrative first-year cost to $3,060 before taxes and other charges.
These figures are examples, not current product prices.
Annual billing may offer a lower rate, but it can also create a longer commitment. Evaluate the tradeoff after testing the service.
SaaS Security and Data Management
Understand Shared Responsibility
The provider manages parts of service security; the customer manages other parts.
Responsibilities vary, but customer duties commonly include account permissions, appropriate configuration, and careful handling of information. Review the provider’s published responsibility model. IBM Cloud Docs
Ask Practical Security Questions
Before introducing sensitive records, check:
- Which authentication methods are available?
- Can permissions match employee responsibilities?
- Are useful audit records available?
- Where is information stored and processed?
- What are the retention and deletion terms?
- How are incidents communicated?
- What recovery options exist?
A security certification can support evaluation, but it does not establish that every use of the application is appropriate.
Verify Backup and Recovery
Ask what can be restored, for how long, and at what cost.
Provider backups may support service recovery without providing the customer-level restoration options your business needs.
Test recovery of important information. Also protect exported copies so an exit plan does not create a new exposure.
How to Implement SaaS Successfully
Prepare Data Before Migration
Remove duplicates, standardize fields, and identify missing records.
Test a small migration and reconcile important values before moving the full dataset.
Assign an Owner
Someone should manage configuration, access, support requests, and renewals.
Ensure the business can retain control if that person leaves.
Train Around Everyday Tasks
Show staff how to perform their actual work.
Provide short instructions and a clear support route. A large feature list is less useful than guidance for common activities.
Define the Source of Truth
Identify where authoritative records belong.
Leaving an old spreadsheet and a new application active without clear rules can produce conflicting information.
How to Manage SaaS Costs Over Time
Maintain an application register showing the owner, purpose, users, cost, renewal date, and data stored.
Review unused licenses and overlapping applications. Before cancelling, confirm that the service does not support an integration or important historical record.
Measure value using practical indicators such as reduced rework, reliable follow-ups, processing time, and employee adoption.
A subscription is useful when it supports outcomes worth its full cost.
Prepare an Exit Plan
Before the business becomes deeply dependent on a service:
- Test available exports.
- Check which information exports omit.
- Record important configurations.
- Review termination and deletion terms.
- Estimate the effort needed to move elsewhere.
An exit plan does not mean a provider is unreliable. It gives the business more control over future decisions.
Frequently Asked Questions
1. Is SaaS always browser-based?
No. SaaS may be accessed through browsers, mobile applications, or desktop clients. The defining feature is the provider-operated application service.
2. Is SaaS cheaper than traditional software?
Not always. It may reduce some infrastructure costs, but subscriptions, usage, integrations, and administration can increase the total. Compare equivalent requirements over time.
3. Can SaaS work offline?
Some applications support limited offline functions. Check the exact capability and test synchronization before relying on it.
4. Who owns information stored in SaaS?
Rights and responsibilities depend on the agreement. Review ownership, permitted provider use, export, retention, and deletion terms rather than assuming they are identical across services.
5. What should a small business evaluate first?
Start with workflow fit, usability, full cost, access controls, and usable exports. These factors help establish whether the application is practical and sustainable.
Conclusion
SaaS can simplify access to business applications, but choosing well requires more than a feature comparison.
Define the problem, test real work, and review the full cost and data terms. Maintain clear ownership, monitor whether the application provides value, and keep a workable exit plan. These steps help make software decisions useful today and manageable as the business changes.
