In systems analysis, a complete system study typically involves which of the following activities?

Introduction / Context:
This question belongs to the field of systems analysis and design. Before building or improving an information system, analysts carry out a system study to understand the current situation, document processes and identify problems. This careful examination forms the basis for designing an improved solution. Computer science and information systems exams often ask what system study involves, because it is a key phase in the system development life cycle and ensures that new systems actually meet organisational needs.

Given Data / Assumptions:

• The topic is system study as part of systems analysis.
• Options describe documenting the existing system, identifying deficiencies and goals, studying the existing system, and an all of the above choice.
• One option suggests designing the new system without examining the old, which is a contrast to proper practice.
• We assume standard methods such as interviews, document review and process mapping are used during system study.

Concept / Approach:
System study is a broad activity that includes understanding how the current system operates, documenting workflows and data flows, and identifying problems, bottlenecks and user requirements. Analysts then use this understanding to propose new goals and improvements. Documenting the existing system ensures that nothing important is overlooked. Identifying deficiencies and new goals aligns the project with business needs. Studying the existing system through observation and interviews helps analysts see what really happens, not just what is written in procedures. Because all three activities described in options a, b and c are essential parts of system study, the most accurate answer is that system study involves all of the above.

Step-by-Step Solution:

Verification / Alternative check:
Systems analysis textbooks describe initial phases such as preliminary investigation and detailed system study. They list typical activities including fact finding about the current system, documentation of processes, identification of problems and setting of new system objectives. They emphasise that skipping the study of the current system can lead to solutions that do not address real issues. Formal methodologies like structured analysis and object oriented analysis also start with understanding and documenting the existing environment. This material confirms that system study encompasses documenting the existing system, identifying deficiencies and goals and studying how the current system operates, matching the all of the above option.

Why Other Options Are Wrong:

• Documenting the existing system and its procedures in detail: An important part of system study but not the only activity.
• Identifying current deficiencies and establishing new system goals: Also essential but only one piece of the complete process.
• Studying and understanding how the existing system currently works: Central to system study but again not the entire set of tasks.
• Only designing the new system without examining the old one: Incorrect, because good design relies on fully understanding the existing situation.

Common Pitfalls:
Some learners may pick one activity they remember from class and overlook the others, not realising that the question aims at the complete picture. Others may mistakenly think that studying the existing system is a waste of time and should be skipped, especially in modern agile projects, but even agile methods require understanding current processes and user needs. To answer similar questions accurately, remember that system study is a comprehensive phase that brings together documentation, analysis of problems and a clear statement of new goals, so when in doubt and all of the above is plausible, it is often the right choice.

Final Answer:
A complete system study involves All of the above activities are part of system study, including documenting the existing system, identifying deficiencies and goals and studying how the current system works.