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3. Proposed system The third section documents the requirements elicitation and the analysis model of the new system. 3.1 Overview The overview presents a functional overview of the system. 3.2 Functional requirements ("shall lists") Functional requirements describe the 3.2.1 high-level functionality of the system. 3.2.2 3.2.3 3.2.4 3.3 Nonfunctional requirements 3.3.1 Usability 3.3.2 Reliability 3.3.3 Performance 3.3.4 Supportability 3.3.5 Implementation 3.3.6 Interface 3.3.7 Packaging 3.3.8 Legal Nonfunctional requirements describe user-level requirements that are not directly related to functionality. This includes usability, reliability, performance, supportability, implementation, interface, operational, packaging, and legal requirements. 3.4 System models System models describes the 3.4.1 Scenarios scenarios, use cases, object model, 3.4.2 Use case model and dynamic models for the system. 3.4.3 Analysis object model This section contains the complete 3.4.4 Dynamic model functional specification, including 3.4.5 User interface-navigational paths and mock-ups illustrating the user screen mock-ups interface of the system and navigational paths representing the sequence of screens. The subsections Object model and Dynamic model are written during the Analysis activity. 4. Glossary A glossary of important terms, to ensure consistency in the specification and to ensure that we use the client's terms. A precursor to the Data Dictionary. 3. Proposed system The third section documents the requirements elicitation and the analysis model of the new system. 3.1 Overview The overview presents a functional overview of the system. 3.2 Functional requirements ("shall lists") Functional requirements describe the 3.2.1 high-level functionality of the system. 3.2.2 3.2.3 3.2.4 3.3 Nonfunctional requirements 3.3.1 Usability 3.3.2 Reliability 3.3.3 Performance 3.3.4 Supportability 3.3.5 Implementation 3.3.6 Interface 3.3.7 Packaging 3.3.8 Legal Nonfunctional requirements describe user-level requirements that are not directly related to functionality. This includes usability, reliability, performance, supportability, implementation, interface, operational, packaging, and legal requirements. 3.4 System models System models describes the 3.4.1 Scenarios scenarios, use cases, object model, 3.4.2 Use case model and dynamic models for the system. 3.4.3 Analysis object model This section contains the complete 3.4.4 Dynamic model functional specification, including 3.4.5 User interface-navigational paths and mock-ups illustrating the user screen mock-ups interface of the system and navigational paths representing the sequence of screens. The subsections Object model and Dynamic model are written during the Analysis activity. 4. Glossary A glossary of important terms, to ensure consistency in the specification and to ensure that we use the client's terms. A precursor to the Data Dictionary