Provides more details to the project's high level requirements and detailed information so that the system will be built to satisfy the system requirements and quality. It includes product/functional requirements, user characteristics, operating environment, security and regulatory specifications, disaster recovery, and data specifications.

A business analyst (BA), sometimes titled system analyst, is responsible for analyzing the business needs of their clients and stakeholders to help identify business problems and propose solutions. Within the systems development life cycle domain, the BA typically performs a liaison function between the business side of an enterprise and the information technology department or external service providers.

The System Requirements Specifications contains the following topics:

  Introduction
        Purpose
        Scope
        Roles and Responsibilities.
  System Requirements Specifications
        Product Functional Specifications
              Functional System Specifications
              Software Specifications
              Hardware Specifications
        User Characteristics / Ergonomic Specifications
              System - User Ergonomics
      Operating Environment Specs
              Computer Systems Environmental Specifications
        Security Specifications
              Physical Hardware Security Specifications
              System Security Specifications
              Network Security Specifications
      Regulatory Specifications
      Disaster Recovery Specifications
              Disaster Recovery Specifications
              Business Resumption Specifications
      Manufacturer Specifications
      Data Specifications
      Network Impact Specifications.

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