“Systems analysis is the part of the systems development life cycle in which you determine how the current information system functions and assess what users would like to see in a new system. Analysis has two subphases: requirements determination and requirements structuring. In this chapter, you will learn about determining system requirements. Techniques used in requirements determination have evolved over time to become more structured and increasingly rely on computer support. We will first study the more traditional requirements determination methods, including interviewing, observing users in their work environment, and collecting procedures and other written documents.” (Modern Systems Analysis and Design, 8th ed, Joseph Valacich)
Objectives:
- describe options for designing and conducting interviews and develop a plan for conducting an interview to determine system requirements,
- explain the advantages and pitfalls of observing workers and analyzing business documents to determine system requirements,
- explain how computing can provide support for requirements determination,
- participate in and help plan a Joint Application Design session,
- use prototyping during requirements determination,
- describe contemporary approaches to requirements determination, and
- understand how requirements determination techniques apply to the development of electronic commerce applications.
Topics:
From Modern Systems Analysis and Design:
6. Determining System Requirements
6.1. Process
6.1.1. Deliverables and Outcomes
6.2. Methods
6.2.1. Interviews
6.2.2. Observation
6.2.3. Artifacts
6.2.4. JAD
6.2.5. Prototyping
6.3. BPR
From CISA:
3.1. System Development Methodologies SDLC Phases
3.1.1.1. Requirements Definition
From Secure Software Design:
1.1. Security Requirements Planning
1.1.1. Functional and Non-Functional Security
In this unit, plan to:
- Participate in the class discussion thread
- Read the assigned topics in CISA
- Read selected readings from Secure Software Design
- Read chapter 6 in Modern Systems Analysis and Design