Usability Inspection, Data Gathering, and Analysis Methods
————— LECTURE 4: —————— INSPECTION:
Experts evaluate interface without involving users. Goal: Identify usability problems early in design.
Advantages: Cheap, fast, early design feedback. Disadvantages: Depends on expert judgment, may miss real user issues.
———– TYPES OF INSPECTION METHODS:
1.) Heuristic Evaluation, 2.) Cognitive Walkthrough, 3.) Pluralistic Walkthrough, 4.) Guidelines Review, 5.) Consistency Inspection.
———– HEURISTIC EVALUATION:
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Read MoreSoftware Engineering and Requirements Analysis Q&A
Software Engineering Practice Questions
1Q: Which of the following statements about domain requirements is FALSE?
A: Domain requirements typically specify how a system must implement a feature.
2Q: In which scenario would the V-Model be the best choice for software development?
A: When the project requires early testing and strict validation.
3Q: Which of the following is the biggest challenge in requirements elicitation for large-scale systems?
A: Ensuring that all stakeholders provide input without
Interaction Design Principles: Creating Intuitive User Experiences
What is Interaction Design (IxD)?
Interaction Design (IxD) is the practice of designing interactive products to support how people communicate and interact in their everyday and working lives.
- Winograd: “Designing spaces for human communication and interaction.”
- Thackara: Focuses on the why and how of daily interactions.
- Saffer: “Art of facilitating interactions between humans through products and services.”
Key idea: It is about creating meaningful user experiences, not just functional systems.
Read MoreMastering Programming Fundamentals and Project Management
What Is Programming?
Programming is a process consisting of a sequence of detailed and ordered steps called algorithms. We transcribe these instructions using a programming language (such as Python) so they can be executed by a computer to create an application or software.
Why Learn to Program?
Programming teaches you to think differently. Learning to code enhances your problem-solving skills, effectively rewiring your brain to tackle challenges not just in software development, but in all aspects
Read MoreSoftware Development Process Models Explained
Software Development Life Cycle (SDLC)
The Software Development Life Cycle is a framework that defines how software is developed step by step.
Core Software Engineering Activities
- Software Specification
- Software Development
- Software Validation
- Software Evolution
Typical Development Flow
Planning → Requirements Analysis → System Design → Implementation → Testing → Maintenance
Software Process Structure
A Software Process consists of: Phase → Activity → Task
Process Activities Require:
- Resources
Maintenance Methods and Levels: A Practical Cheat Sheet
Part 1: Maintenance Method Cheat Sheet
When analyzing a scenario, ask yourself: Why are we performing maintenance on this machine?
1. Preventive Maintenance (Before Failure)
- Systematic (Periodic): Triggered by a strict interval (time, distance, operating hours, or cycles). The part is replaced regardless of its current condition.
- Keywords: “Every X km,” “weekly,” “monthly,” “at 100,000 km,” “start of winter.”
- Condition-based: Triggered by physical warning signs, sensors, or thresholds. Action is taken