The System Requirements Specification (SyRS) is a detailed description of the requirements necessary to create a complete computer system. The IEEE has created standard procedures for documenting SyRS. A business analyst is responsible for creating SyRS, which includes performance, functional and security requirements. Following best practices ensures correct implementation.
A typical computer application includes a set of software, hardware, and network components. The System Requirements Specification (SyRS) is a detailed description of the requirements necessary to create a complete system. These requirements are documented in an attempt to define the full functionality, availability, performance, and security needs of a system.
The Institute of Electrical and Electronics Engineers (IEEE) is the largest technical society dedicated to standards in the field of electronics and computers. IEEE has created a set of standard procedures on how to document a system requirements specification. This documentation includes guidance on creating, organizing, and modifying system requirements.
Creating a SyRS is typically completed by a business analyst. The business analyst is a professional responsible for converting business jargon into technical solutions. You are the liaison between the company and the technical community. A good business analyst is an effective communicator who can articulate business needs to a technical team.
There are many benefits to following best practice guidelines for a system requirements specification. The requirements specification is the basis of the architecture, design and implementation that will be built. These requirements are used to determine the level of effort required to complete a project. Incorrect requirements are comparable to a bad foundation for a building, which will always lead to a failed implementation.
All systems have performance requirements which should be documented within the system requirements specification. These requirements define the response time, availability and productivity of a system on specific tasks. For example, an insurance company might be required to process 100,000 claims per day. This requirement would be considered a performance requirement.
A functional requirement is a feature of a system based on specific business processes. A functional requirement might be simple rules about how an application should create and save data in the system. For example, a business might require that all people have an address before the system saves data to a storage device. This functional requirement would be documented within the requirements specification.
Security requirements are often the most important aspects of a system. These requirements are documented to outline how data is accessed and the policies to be used to encrypt data within the application. With the continuing threat of hackers and online predators, cyber security has become an increasingly important requirement for most computer systems.
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