Software engineering principles applied to large healthcare information systems--a case report.

Area of Science:

• Health Informatics
• Software Engineering
• Public Health Management

Background:

• São Paulo, a major global city, faced challenges in managing its extensive healthcare services.
• The need for a robust Healthcare Information System (HIS) to streamline operations and patient records was identified in 2004.

Purpose of the Study:

• To describe the successful implementation of a large-scale public HIS in São Paulo.
• To discuss the software engineering principles that facilitated the project's on-time and on-budget completion.
• To share experiences to aid future healthcare information system initiatives.

Main Methods:

• Adoption of specific software engineering principles tailored for large-scale public health projects.
• Systematic development and deployment of a comprehensive Healthcare Information System.
• Project management focused on adherence to schedule and budget.

Main Results:

• The São Paulo Healthcare Information System was completed on schedule and within budget.
• The system is one of the largest public HIS implementations globally, featuring over 2 million lines of code.
• Despite significant risks, the project achieved its intended goals.

Conclusions:

• The successful execution of the São Paulo HIS demonstrates the effectiveness of strategic software engineering in public health.
• Sharing this project's experience can guide and improve the success rates of future healthcare information system developments.
• This case study provides a model for managing complex IT projects in the public healthcare sector.