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Application development services help plan, design, build, test, deploy, and maintain software applications. A provider may handle the whole lifecycle or only selected parts, so the proposal and statement of work—not the service label—determine what is actually included.
What does an application development company do?
An application development company works with a client to create or improve an application. Depending on the engagement, its work can include clarifying requirements, designing the user experience and technical architecture, writing code, testing, releasing the software, and handling post-release issues or changes. Microsoft describes application development as planning, design, building, and testing within a broader lifecycle that also covers governance, deployment, support, and maintenance (Microsoft Learn: application lifecycle management).
The phrase does not name one fixed package. A provider might be responsible for a particular stage, such as implementation, or support more of the lifecycle. IBM similarly describes software development as creating, designing, deploying, and supporting software, with the work commonly organized into lifecycle phases (IBM: What Is Software Development?).
What is included in application development?
A common lifecycle map includes the stages below. They are not necessarily completed once, in a strict sequence: teams may revisit decisions as they learn, and some activities overlap.
- Discovery and requirements: Identify intended users, the problem to solve, business goals, constraints, data, integrations, and how success will be assessed.
- Analysis and design: Define expected behavior and the system architecture, then choose an approach suited to the application’s needs and operating environment.
- Implementation: Build the application and connect the components or services it needs.
- Testing and assurance: Check that the software behaves as intended, meets requirements, and is ready for release. Testing can take place alongside implementation rather than only at the end.
- Deployment: Package a release and move it into the production environment so users can access it.
- Operation and improvement: Monitor performance, security, and user experience; address issues; maintain the application; and deliver updates or changes.
IBM’s SDLC overview lists planning, analysis, design, coding, testing, deployment, and maintenance as common phases (IBM: Software Development Lifecycle). AWS notes that teams often test while writing code and that maintenance can include bug fixes, customer issues, software changes, and monitoring (AWS: What is SDLC?). These are useful descriptions of common practice, not a mandatory sequence for every project.
What happens after an app is launched?
Launch is not necessarily the end of the engagement. Depending on the agreement, the provider or the client’s own team may monitor the application, resolve defects, respond to user issues, maintain dependencies, and develop improvements. Microsoft’s lifecycle description includes operating, monitoring, and learning as ongoing activities, while AWS includes maintenance and monitoring in its SDLC explanation.
Ask who is responsible after release and what the arrangement covers. “Support” or “maintenance” alone may not specify response expectations, included changes, or how work outside the agreed scope is handled; those details should be written into the engagement documents.
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Security and privacy should shape requirements and design, then be revisited as an application changes. Microsoft’s Security Development Lifecycle describes defining and tracking requirements based on factors such as the data handled, known threats, regulations, and industry requirements. It also describes threat modeling during design and adjusting security work as functionality and threats evolve (Microsoft Learn: Security Development Lifecycle).
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This is Microsoft’s description of its own SDL process; it is not evidence that every provider follows that process or that hiring a provider guarantees security. Clarify which security and privacy activities are included, who performs them, and how findings are handled.
Do application development services require cloud-native architecture?
No. Cloud-native architectures, loosely coupled microservices, managed databases, DevOps practices, and built-in monitoring are among the approaches used in modern application development. Microsoft presents them as possible building blocks, not requirements for every project (Microsoft Azure: Modern Application Development). The appropriate choices depend on the application’s needs, constraints, and operating environment.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What should you clarify before hiring a provider?
Use the proposal and statement of work to turn a broad service description into defined responsibilities and deliverables. Ask:
- Which lifecycle stages are included, and what concrete deliverable will be provided at each stage?
- Who owns requirements, architecture, source code, testing, deployment, and documentation?
- Which existing applications, APIs, data stores, or other systems must the work integrate with?
- What testing and security responsibilities are included, and how will defects or security findings be addressed?
- Who deploys and monitors the application, and what post-launch support, maintenance, and change process is included?
Compare providers on the agreed scope and deliverables, technical and integration fit, security responsibilities, release approach, and post-launch support. The sources cited here do not establish standard service prices, contract terms, or a universal set of activities that every vendor bundles.
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