# performance engineering

> engineering field and approach to ensure the non-functional requirements for performance

**Wikidata**: [Q4117135](https://www.wikidata.org/wiki/Q4117135)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Performance_engineering)  
**Source**: https://4ort.xyz/entity/performance-engineering

## Summary
Performance engineering is an engineering field and approach dedicated to ensuring that a system meets its non-functional requirements for performance. It is a specialized discipline within computer engineering that focuses on the design of computer hardware and software systems through the study of performance tuning.

## Key Facts
- **Classification:** Performance engineering is a subclass of both systems engineering and computer engineering.
- **Primary Objective:** The field is specifically designed to ensure non-functional requirements for performance are satisfied.
- **Aliases:** It is also known as software performance engineering, computer performance engineering, and 性能工学.
- **Core Study:** The discipline is defined as the study of performance tuning.
- **Parent Discipline:** It falls under computer engineering, which specializes in the design of computer hardware and software systems.
- **Technical Identifiers:** It is associated with Freebase ID /m/0gdwfr and the discontinued Microsoft Academic ID 178061710.
- **Global Documentation:** The entity is documented in multiple languages, including English, Arabic, Korean, and Russian.
- **Reference Date:** Key structured data for this entity was referenced as of October 28, 2013.

## FAQs
### Q: What is the main goal of performance engineering?
A: The main goal is to ensure that a system fulfills its non-functional requirements regarding performance. It provides a structured approach to managing how a system functions under specific operational constraints.

### Q: How does performance engineering relate to other engineering fields?
A: It is categorized as a subclass of systems engineering and computer engineering. It specifically applies engineering principles to the design and optimization of hardware and software systems.

### Q: What are the alternative names for this field?
A: Performance engineering is frequently referred to as software performance engineering or computer performance engineering. In Japanese academic contexts, it is known as 性能工学.

## Why It Matters
Performance engineering is a vital discipline because it addresses the non-functional aspects of system design that determine efficiency and reliability. While general computer engineering focuses on the design of hardware and software systems, performance engineering ensures these systems meet specific performance benchmarks. By focusing on non-functional requirements, it prevents systems from failing due to speed, scalability, or resource issues, even if the functional logic is correct. 

As a subclass of systems engineering, it provides a holistic framework for the study of performance tuning. This specialized focus is essential for the development of complex computing environments where hardware and software must be perfectly aligned. Its recognition across diverse languages—including English, Arabic, Korean, and Russian—underscores its global importance in the maintenance and optimization of modern digital infrastructure. Without this field, the systematic assurance of system responsiveness and resource efficiency would lack a formal engineering methodology.

## Notable For
- **Focus on Non-Functional Requirements:** Unlike fields that focus on functional logic, this discipline is specifically dedicated to performance-based requirements.
- **Study of Performance Tuning:** It serves as the primary academic and practical field for the study and application of performance tuning.
- **Interdisciplinary Nature:** It bridges the gap between the broad scope of systems engineering and the technical specifics of computer engineering.
- **Global Academic Presence:** It is a recognized engineering approach with established terminology in multiple major world languages.

## Body

### Classification and Definition
Performance engineering is a specialized engineering field and approach. It is formally classified as a subclass of both systems engineering and computer engineering. Its primary purpose is to ensure that non-functional requirements for performance are integrated into the design and operation of a system.

### Relationship to Computer Engineering
As a part of computer engineering, performance engineering contributes to the design of computer hardware and software systems. It provides the necessary methodologies to ensure that these designs are not only functional but also performant. The field is often referred to by more specific titles depending on the focus area, such as:
*   Software performance engineering
*   Computer performance engineering

### Core Methodology
The discipline is fundamentally the study of performance tuning. This involves the systematic adjustment of system components to improve efficiency and ensure that performance requirements are met. This approach is applied throughout the engineering lifecycle to maintain the balance between hardware capabilities and software demands.

### Technical Records and Global Reach
The field is recognized internationally, with dedicated documentation in English, Arabic, Korean, and Russian. Technical databases have tracked the entity using specific identifiers:
*   **Freebase ID:** /m/0gdwfr (referenced in October 2013)
*   **Microsoft Academic ID:** 178061710 (noted as discontinued)
*   **Sitelink Count:** The entity maintains a sitelink count of 4, while its parent discipline, computer engineering, has a count of 73.

## References

1. Freebase Data Dumps. 2013