Architecture

Architecture

Osiris 2 Enterprise Framework is a multi-tiered framework that is composed of several layers intended to be scalable and dynamic. Basically it is composed of three tiers – the client or presentation, the business application or middle layer and the database layer. See diagram below:

Figure 2. E-TRACS Enterprise Architecture

Client or Presentation Layer – this is what users use to interact with the system. It could be any computing device. It can be a desktop or workstation application, a web browser, a mobile application, a kiosk, or any device like card readers. The E-TRACS program, however, at this time is developed for the personal computer and uses the Osiris 2 Client Platform.   

Business Application Layer – Also known as a middle layer, data collected from the client is processed. It acts as the go-between the client and data layer. Transactions are organized as services, and code is written in scripts or a text-like programming language. Services can be accessed by the client or even by another system using another programming language. This is commonly referred to as Service Oriented Architecture (SOA). 

Data Layer   - This is where data will be persisted or “saved” and commonly stored in relational databases. However, data storage is not limited to relational databases. Data can be also be stored in other data formats like a document database and non-relational databases. However, at this time, E-TRACS is stored in relational databases, and an LGU has two options – MySQL or MS SQL Server. There is planned support for other databases in the future but it depends on the request of the LGU.