Why is new system development necessary?

New system development is necessary to take advantage of new technologies, solve problems with existing systems, or adopt new business approaches.

Which phase of the SDLC is considered the most important?

The requirement phase is considered the most important because it determines what users need from the system, ensuring its acceptance and success.

What are the types of feasibility studies in system development?

The types of feasibility studies include operational feasibility, technical feasibility, and economic feasibility.

What is operational feasibility?

Operational feasibility examines whether a new system can be effectively integrated into the organization’s current operations, considering available hardware and software.

How is the requirement phase conducted?

The requirement phase involves understanding user needs, often through interviews, questionnaires, or social media engagement.

Why is user input crucial in the requirement phase?

User input is crucial because the system must meet user needs and expectations, or it risks being quickly retired as unsuccessful.

What methods can be used to gather user requirements?

Methods include interviews, questionnaires, and leveraging social media platforms like Facebook, WhatsApp, WeChat, or Viber.

business app development

00:05:40

https://www.youtube.com/watch?v=egXXufTpgn4

Résumé

TLDRThis video discusses the reasons behind the need for new system development, which may include leveraging new technologies, solving existing system issues, or adopting new business methodologies. It outlines the System Development Life Cycle (SDLC) phases: planning, analysis, design, implementation, testing, and maintenance, emphasizing the significance of each. The presenter highlights the importance of the requirement phase, noting its critical role in gathering user needs, which are essential for successful system integration and satisfaction. The video also explains the waterfall model approach in system development, alongside feasibility studies (operational, technical, and economic) which are necessary to evaluate a system's viability. The requirement phase is identified as the most crucial, as it engages users to communicate their needs, ensuring the system's alignment with their expectations through various channels, such as interviews and social media.

A retenir

📋 The System Development Life Cycle (SDLC) involves phases from planning to maintenance.
🕵️‍♂️ Requirement phase is crucial for understanding user needs.
💬 User input is gathered through interviews, questionnaires, or social media.
🔍 Feasibility studies assess operational, technical, and economic viability.
⏳ Waterfall approach moves through SDLC phases sequentially.
👥 Users' opinions are vital for system success.
🖥️ New systems should leverage new technologies or solve existing problems.
⚙️ Operational feasibility checks if the system can integrate with current operations.
📊 Economic feasibility evaluates the system's cost-effectiveness.
🔧 Technical feasibility ascertains available technological capabilities.
🏢 System development helps businesses adopt new operational methodologies.
📝 Effective user requirement gathering determines the project's overall success.

Chronologie

00:00:00 - 00:05:40
在本视频中，我们探讨与商业应用开发相关的问题，特别是为什么需要开发新系统的原因，比如技术进步或对现有系统不满。视频还介绍了系统开发生命周期（SDLC）的各个阶段，包括规划、分析、设计、实施、测试和维护，通常采用瀑布式的步骤。我们重点将关注信息系统审计在系统开发中的作用，以及信息技术审计人员需要的主要要求和考虑，尤其是控制措施如何在系统开发中实施。不同阶段有不同的焦点，比如在规划阶段验证可行性，在分析阶段明确需求等。

Carte mentale

Questions fréquemment posées

Why is new system development necessary?
New system development is necessary to take advantage of new technologies, solve problems with existing systems, or adopt new business approaches.
What are the phases of the System Development Life Cycle (SDLC)?
The phases include planning, analysis, design, implementation, testing, and maintenance. It often follows a waterfall approach.
Which phase of the SDLC is considered the most important?
The requirement phase is considered the most important because it determines what users need from the system, ensuring its acceptance and success.
What are the types of feasibility studies in system development?
The types of feasibility studies include operational feasibility, technical feasibility, and economic feasibility.
What is operational feasibility?
Operational feasibility examines whether a new system can be effectively integrated into the organization’s current operations, considering available hardware and software.
How is the requirement phase conducted?
The requirement phase involves understanding user needs, often through interviews, questionnaires, or social media engagement.
Why is user input crucial in the requirement phase?
User input is crucial because the system must meet user needs and expectations, or it risks being quickly retired as unsuccessful.
What methods can be used to gather user requirements?
Methods include interviews, questionnaires, and leveraging social media platforms like Facebook, WhatsApp, WeChat, or Viber.

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Sous-titres

Défilement automatique:

00:00:00
hi guys welcome back
00:00:02
in this video we are going to look at
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the issues related to
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business application development
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now uh we have i would like to ask a
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question from you guys
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uh why we do why do we need to have a
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new system be developed
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so there are several reasons that we
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need to have new system development
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maybe we are we would like to take
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advantage of new technology something
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like fintech
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maybe because of there's a problem with
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existing systems or we want to go for a
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new business in a new different ways so
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there are many reasons that we need to
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have a new development uh new system
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been developed okay right
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when you look at the new system
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developed so we call it system day room
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life cycle when we have system diagram
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life cycle we have different phases
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from our different steps rather we have
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from planning
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analysis design implementation testing
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and the maintenance right so when you
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look at
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system development usually we do go
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through what we call it waterfall uh
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approach
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waterfall technique we start from phase
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one and then we go down to phase six
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one two
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three a three b four a four b five and
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six so we are not going to go through
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the detailed uh system demo life cycle
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it has to be covered in the system
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development methodology course itself so
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but our main focus is going to be how
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does is auditing plays a role in system
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development process itself
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and what are the major requirements or
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major considerations of id auditors of
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system development and most importantly
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how does controls can be implemented
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into system development itself for
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example here it's in the planning of
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place number one we replace with
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visibility and then you could see that
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phase two analysis comes with the
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requirement
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and the design phase phase three of
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traditional system development we
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replace with the
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3 and 3b that's design and selection i'm
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going to explain why this is different
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from the design and selection in a
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minute
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then plus that we have a 4a is
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development and 4b configuration and
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phase 5's implementation mostly that
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it's it's representing and it's in like
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you know
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two phases of the traditional system
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development that is uh phase four and
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phase five implementation testing and
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then finally maintenance phase that we
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are replacing with the post
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implementation
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okay first of all i would like to ask
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question from you guys which is
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in this stlc phases
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which one is the most important one okay
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the most important phase is phase two
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which is the requirement phase so if we
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don't do well in the phase two our
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entire system development would be a
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failure so what is phase two how we do
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that i'll talk to you guys in a few
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minutes time now let's look at the phase
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one which is the feasibility so could
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you please think about what are the
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different feasibilities that we consider
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when you develop systems
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so yes there are three different ones we
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call operation feasibility we call
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technical feasibility and then we call
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it economic feasibility operation
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feasibility means that whether that
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system is uh being developed whether we
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can operate within our organization
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whether we have software we have a
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hardware to
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operate the system technical feasibility
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means whether we have expertise develop
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system as well as maintenance systems
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within ourselves and finally economic
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visibility that you can understand the
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systems gives you a economic uh
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benefit so that's something that we look
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at the economic feasibility so that's
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the feasible studies the one that we do
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first and then we are moving to the most
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important phase which is the requirement
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phase so what we do in the requirement
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phase can you guess
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the requirement phase what we are trying
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to understand is we are trying to find
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out
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uh what is needed for the users because
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most important people for a system is
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whoever used in the system it could be
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your employee it could be your customers
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that means if you are developing a
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banking system they could be your
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customers maybe your senior management
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okay so whoever it is
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the person that use the system day in
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day out if they don't happen with your
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new system development no matter how
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good you think the system is system will
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be retired very very soon so the most
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important thing are the users
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what they feel about so in the
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requirement phase what we do is we give
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them time to let you guys know to let us
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know
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what they would like to have in a new
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system development what kind of features
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what kind of modules what kind of
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capabilities that you would like to have
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in the new system that's very important
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so we should give them enough time
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and then we have to collect uh we have
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to gather
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their uh input okay now how we do that
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there are different ways that we do it
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in the requirement phase we might think
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about interviewing some key players or
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we might send them a questionnaire
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or else we use social media that's what
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we do most time now so we use facebook
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we use our whatsapp you should we
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chat we should use viper whatever it is
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way of communicating them give them an
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opportunity to
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communicate to you and let you know
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about what they like to have in your new
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system so that's why this is the most
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important phase in the system
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development right