OpenMRS Architecture activity

Title	OpenMRS Architecture case study
Overview	In this activity students use OpenMRS Architecture as a case study to identify the architecture pattern used and study the components of web architecture.
Prerequisite Knowledge	Design and architecture
Learning Objectives	To identify the architectural pattern used for a given system To get exposed to web applications by studying their architectures To differentiate between server side technologies and client side technologies To use software architecture as a starting point to approach an open source project

Background

Open-MRS is an open source electronic medical record system (EMR) originally designed for developing countries. Go the open MRS website https://wiki.openmrs.org/display/docs/Technical+Overview and http://write.flossmanuals.net/openmrs-developers-guide/architecture/ . The architectural design of the Open MRS system is described in these pages.

Directions

Study the architectural diagram and answer the following questions:

Part 1: General Architecture

1. Identify the basic modules in the architecture. What are the basic components and how do they interact
2. What architecture style is used in Open-MRS architecture? Justify your answer.

(Grading criteria: your answer should explain how the Open-MRS architecture satisfies the constraints and rules for the chosen architecture style)

Part 2: Server and client technologies

1. What technologies are used on the client side?
2. What technologies are used on the server-side?
3. What is Spring? (use Google to answer. Include your reference)
4. What is Hibernate? (use Google to answer. Include your reference)
5. What language is used for server-side programming in OpenMRS?

Part 3: Design Principles

1. OpenMRS architecture satisfies design principles such as modularity and information hiding. Explain how does the architecture satisfy these principles?
2. Why does the architecture follow design principles ? (Find the answer in the reading)

Deliverable

• A report including answers

Notes for Instructors

Assessment

Criteria	Level 1 (fail)	Level 2 (pass)	Level 3 (good)	Level 4 (exceptional)
Understands what is a Open API and how is different that open source	Little to no understanding shown; Answers are made up or unrelated; Didn't read material	Limited understanding, showing that they read some, but did not dig very deep	Showed that they have done the readings with limited understanding	Clearly explain the answer to each question with supporting examples
Testing FEMA APIs	No testing	Testing with bad results	Testing with good results	Testing multiple APIs with the correct result
Create an Android App that retrieves data from a REST API	Did not attempt to create the App	App retrieves data but data is not parsed	App retrieves data and parses the json data	App retrieves data, parses data and displays data
An interactive interface is develped to display data	Did not attempt to create an interface	Create a limited interface for the app	Create a complete inteface displaying all retrieved data	Create an efficient interface with the ability to search/filter the data

Comments

Android Development, JSON data model

Additional Information

ACM Knowledge Area/Knowledge Unit	[1]
ACM Topic	Software Engineering
Level of Difficulty	Medium- Challenging
Estimated Time to Completion	2 hours
Materials/Environment	Internet access
Author	Ruby ElKharboutly
Source	Ruby ElKharboutly
License	Creative Commons CC-BY

Suggestions for the Open Source Project

Suggestions for an open source community member who is working in conjunction with the instructor.

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