Application development

ASP.NET Application Development Services

AVRIN builds database-driven business applications in ASP.NET and C#. The goal is a system your staff can run, not a public marketing site.

Built around a business process

Internal tools, customer portals, administrative screens and operational dashboards fail when they are designed as a pile of pages. We start from the workflow, the data it reads and writes, and who is allowed to do what.

New work uses ASP.NET on .NET Framework or ASP.NET Core, C#, SQL Server, and REST APIs when another system needs access. Existing Web Forms applications can be extended in place when a rewrite is not justified.

Typical applications

  • Internal business applications and admin tools
  • Customer and employee portals
  • Data-entry and workflow applications
  • Order, inventory and customer management
  • Reporting portals and management dashboards
  • Document tracking tied to a database

What the application is made of

Interface

Screens staff can complete without a manual. HTML, CSS and JavaScript where the browser needs them.

Business logic

Rules live in the application, not copied into every page.

Data access

Parameterized SQL and stored procedures against SQL Server, PostgreSQL or Oracle when that is the system of record.

APIs

A web service or REST API when another application must read or update the same data.

Access control

Authentication and authorization matched to the roles in the business, including Entra ID or OAuth when you already use them.

Operations

Logging and error handling so a failure is diagnosable instead of a blank page.

How a project runs

  1. Requirements

    Who uses it, what they do today, and what must not break.

  2. Architecture and database design

    Screens, services and the tables or procedures behind them.

  3. Development and testing

    Build in slices, with a test pass before anything reaches production.

  4. Deployment, documentation and support

    Hand over a system someone else can operate, then stay available if you want ongoing support.

Database-driven application development covers the SQL Server side in more detail. Database services covers the platform underneath.

Discuss Your Application Development Project Request Application Assessment

Talk through the application

Describe the users, the database and whether this is a new build or an extension of something you already run.

Contact AVRIN or call 562.445.5872