Rekayasa Perangkat Lunak : Perangkat Lunak

Summary

In this lecture on Software Engineering, the speaker, Isya Taqyuddin Hanif, introduces the foundational concepts of software. The discussion covers what software is, its role in computational tasks, and its evolution from the 1950s to the present. Myths surrounding software development are debunked, emphasizing the ongoing work even after software is delivered. The lecture also highlights key characteristics of software, including functionality, reliability, usability, efficiency, maintainability, and portability. Finally, the process of software development is explored, focusing on the interrelated activities that are essential to creating and modifying software systems.

Takeaways

• 😀 Software is a collection of items, including programs, data, and documents that work together to deliver desired outcomes for users.
• 😀 Software is a product that presents computational potential, processes data, and provides systems support such as operating systems and networking software.
• 😀 The evolution of software spans several eras, starting from the 1950s, with advances like multiuser systems, real-time systems, and databases.
• 😀 In the early years, software development was oriented towards specific company needs, such as limited distribution and beach orientation.
• 😀 The advent of personal computers and low-cost hardware significantly impacted the development and distribution of software.
• 😀 One myth in software development is that once a program is written and executable, the work is finished. In reality, 60%-80% of work happens after the software is delivered to users.
• 😀 Another myth is that successful software projects are defined solely by executable programs, when in fact, documentation, planning, and other elements are just as important.
• 😀 Key characteristics of software include functionality (how well it performs tasks), reliability (consistent performance under conditions), and usability (ease of use).
• 😀 Software efficiency refers to its ability to use system resources effectively and maintainability refers to ease of modification for improvements or bug fixes.
• 😀 Portability of software is the ability to transfer it across platforms with minimal changes, ensuring its functionality across different hardware and software systems.
• 😀 The software process is a set of interrelated activities involved in creating, modifying, or combining components of a software system to meet specific goals.

Q & A

What is the definition of software as explained in the transcript?

Software, or perangkat lunak, is a collection of items or objects that form a configuration, including programs (instructions executed to achieve a desired function), data (information the program manipulates), and documents (which describe program operations and usage).

What is the primary role of software?

The primary role of software is to present computational potential, process and modify information, and manage data input by the user to produce desired results.

How does software support system functions?

Software can directly support or provide system functions, such as in operating systems (OS) and networking software, which facilitate communication and support other software tools.

How has software evolved over the years?

Software evolution has progressed from early days of batch processing, limited distribution, and multi-user systems, to real-time systems, database management, expert systems, and intelligent systems like robotics and artificial intelligence.

What is the significance of real-time systems in software development?

Real-time systems are important because they process data and generate output within milliseconds, making them crucial for time-sensitive applications like controlling processes and providing immediate feedback.

What are some common myths about software development?

Two common myths are: 1) that the job is complete when the program is written and executed; in reality, 60-80% of the work occurs after the software is delivered to the user. 2) that a working program is the only product of a successful project; in reality, programs are just part of a larger software configuration, including documentation and planning.

What are the key characteristics of software?

Key characteristics of software include functionality (meeting specific goals), reliability (providing consistent functionality), usability (ease of use), efficiency (optimal use of system resources), maintainability (ease of modification), and portability (ability to work across different platforms with minimal changes).

How does software maintain its efficiency?

Software maintains efficiency by utilizing system resources, such as memory and processing power, in the most effective and optimal way possible.

What does the term 'maintainability' in software mean?

Maintainability refers to the ease with which software can be modified or updated, whether for improving functionality, correcting errors, or adapting to new environments.

What is the role of software processes in development?

Software processes are sets of interrelated activities that contribute to the production of software, including development, modification, and integration of software components to improve or expand system functionality.