Skip to content
Search

Requirement

lastmod 2025-09-20created 2025-09-201 edits

A requirement, in the field of system development, is a condition or capability needed to carry out a task. When developing and operating a system, the client systematically organizes the conditions and capabilities needed to carry out a specific task, assigns requirement numbers to them, and writes a request for proposal; the bidder then writes a proposal in accordance with those requirements.

List of requirements

No.

Code

English

Requirement name

Description

1

FUR

Function Requirement

Function

Functional requirements

2

SFR

System Function Requirement

System function

Requirements needed for system development, such as software functions

3

PER

Performance Requirement

System performance

Measures to improve performance degradation that may occur while many users are using the system

4

INR

Interface Requirement

Interface

Implementation of the user interface and how web accessibility is addressed

5

SIR

System Interface Requirement

System interface

How system interfaces will be implemented

6

TER

Test Requirement

Test

Testing methods and how results are handled

7

MAR

Maintenance Requirement

Maintenance

Technologies needed for stable operation of the system

8

OPR

Operational Requirement

Operations management

An efficient maintenance staffing structure and management plan that supports smooth operation and management of the system and enables quick resolution when problems occur

9

SMR

System Management Requirement

System operation

Requirements needed for smooth operation and management of the system

10

MHR

Maintenance Human Resource Requirement

Assigned personnel

Organization and staffing plan for normal operation of the target system

11

SER

Security Requirement

Confidentiality and security

Requirements for controlling access to the target system's data, functions, and operations to ensure the confidentiality and integrity of information assets

12

QUR

Quality Requirement

Quality management

Requirements for the quality attributes the target system must have, what is subject to quality evaluation, and target values

13

COR

Constraint Requirement

Constraints

Constraints identified in advance in areas such as technology, standards, business, law, and regulations that relate to the design, construction, and operation of the target system

14

PMR

Project Management Requirement

Project management

Requirements for the project management methodology and the execution plan for each phase so the system is delivered smoothly. Requirements for the contract method and terms, the project period, and so on for carrying out the project

15

PSR

Project Support Requirement

Project support

Requirements needed for carrying out the project and for future support. Standardization, training support, technical support, defect repair, maintenance, project team member requirements, etc.

Functional vs non-functional requirements

Functional Requirements
Defined by the output the system produces for a specific input given to the system.
Non-Functional Requirements
Requirements concerning conditions on software functions (system properties) and constraints

See also

  • Requirements management
  • Requirements analysis
  • Request for proposal

Favorite site

author Zer0 sitemap