# Development Introduction
IndustryApps apps can be considered as lego block construction. Applications should be standardized by implementing some microservice patterns and packaged into IndustryApps AppStore.
The idea can be explained in simple terms as the application is a lego block, which may exist standalone or joined with other applications to mature as standalone and form a block, finally, these blocks can plug and play in different ways to serve different business needs. This guide helps to understand the thought, and it also helps you in either developing an application from scratch or adapting an existing one.
## Quick Links
| [.png?alt=media&token=755b2294-23e1-4029-8b02-b5057ff6839d)
Accessing user context, permissions & management in App](https://docs.industryapps.net/authentication/accessing-data-exposed-by-the-platform) |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [.png?alt=media&token=190b85e4-af7f-43de-8df8-6129a5292248)
Integrate Masterdata into your application](https://docs.industryapps.net/apis-or-data-integration/how-to-access-masterdata) |
| [
Integrate Transactional data into your application](https://docs.industryapps.net/apis-or-data-integration/how-to-access-transactional-data) |
| [
Docker with credentials in a `docker-compose.yml` file](https://docs.industryapps.net/docker-information) |
| 
[Configuring App permissions](https://docs.industryapps.net/onboarding-to-industryapps/onboard-application/configure-application/app-permission) |
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