Designing IT Project Using Diagram

Hi again all~

Come again with some knowledge about diagram which often used for designing an IT project. As we know that before developing an IT project, it will be better if we can design the application using diagram first before developing the application directly. Why is it important? As we all know that most of IT applications meet many changes happening along the way when those applications are being built. Those changes actually are the cause of many projects being delayed in delivery, also the cause of many bugs happening along the way. Those changes are unavoidable, I know. But they can be minimized if we analyzed first what kind of application should we built. This analysis process will result in designing the application, in form of IT diagram. And why do the diagram have to do with the importance of building a project?

See, if when analyzing the application carefully, you’ll realize many other things related to the project which can cause issues later on, or you can also find something which maybe related to the project you build. These realizations will make you design a good, reliable, and extendable project without having much effort later on if many development happen. Nah, you can design the diagram using those IT diagrams, which are so many of them. I think I shouldn’t explain the detail of each diagram because I myself isn’t the expert. I’ll just share about which kind of diagram should be used in which kind of need. Let’s begin then~

I believe that many of you have already heard the term UML diagram, ER diagram, Business Process diagram, Flow Chart diagram, Data flow diagram, etc. What are the difference between them all? You know that an application always built by the system itself and the database as the storage of the data processing in the application. We can use UML diagram, Business Process diagram, Flow chart diagram as the diagram to design the system, while ER diagram and Data flow diagram are used to design the database. Let’s get to know the briefing of each diagram first then. Let’s go to the system diagram discussion first:

Business Process Diagram

This diagram depicts the flow of business rule in application. You design this diagram using flowchart, but you picture the thing in bigger process than usual flowchart. You also use the role which is related with the process. It kinds of similar with use case diagram of UML diagram, but you can see the flow well from this diagram. It’ll be hard to imagine my description above so I should give the example of simple business process diagram. Here it is:

Flow Chart Diagram

Flow chart diagram usually used to describe the simple process. For different process, usually flow chart will be divided into smaller part so the main flowchart can be kept simple to make people easier to understand the process. It usually also includes the validation happening in a process. People who reads flowchart usually can understand the process easily rather than reading it in a description paragraph type. The functionality of flow chart diagram is similar to UML diagram, but it is usually used for simpler application. People with procedural programming language type will use flow chart diagram to design

Here is the simple flowchart of login process:

 

UML Diagram 

I believe that UML diagram is the most famous type of designing diagram for an IT project. It is used widely by many application. Usually project which is very large and expendable will use UML as the method to design the application. UML consists of many diagrams:

• Structure Diagrams include the Class Diagram, Object Diagram, Component Diagram, Composite Structure Diagram, Package Diagram, and Deployment Diagram.
• Behavior Diagrams include the Use Case Diagram (used by some methodologies during requirements gathering); Activity Diagram, and State Machine Diagram.
• Interaction Diagrams, all derived from the more general Behavior Diagram, include the Sequence Diagram, Communication Diagram, Timing Diagram, and Interaction Overview Diagram.

Each diagram above has different functionality to the system. For example, use case diagram can be used to describe the features available in a system, which features can be used by whom, which features dependent to each other, etc. This diagram is usually made first between the other diagrams. But in this diagram, we can’t get what kind of functionalities of a feature can be used for which role. What I mean is, role admin and officer both can access officer features, but which functionalities are restricted only for which roles can’t be described in a use case diagram. Class diagram can be used to design what kind of class will exist in a system, what relationship each class has with each other, what attributes and methods available in each class. While sequence diagram can be used to depicts the interaction happen between each class, what type of attributes and methods will be exchanged between classes, etc.

It’ll be too wide if UML diagram should be described here. I also don’t have enough confident about these diagrams anyway, so you should look for other resources about UML diagram. There are many of them too so it won’t be difficult for you to find some reliable resources about UML diagram.

The next is database diagram:

ER Diagram

ER diagram depicts the entity relationship diagram which is the database design diagram. It consists of available entities, available attributes in each entities, and relationship cardinality between each entities. In terms of concept, it kind of similar with class diagram from UML. The difference is that class diagram is used for the system, while ER diagram is used for the database.

Data Flow Diagram

Similar with ER diagram, data flow diagram is used to design the database. The difference between data flow diagram and ER diagram is usually, data flow diagram is used for simpler project which use procedural programming language method, while ER diagram is used for bigger project which use object-oriented programming language method. Data flow diagram depicts the flow of data in the system. Unlike ER diagram, it doesn’t capture the entity available in a project and the relationship exist between entities.

I think that’s it for now, my brain is divided into different part of my life right now so I can’t really concentrate on this topic. I’ll update this post as soon as possible by the way.. Thanks a lot for coming~

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Life Qoutes

Hi there people~

Here I submit some quotes which I often read when feeling down or something along the line, wish it could be useful for you all.. If you want to read more quote, you can directly search it in google or go to goodreads.com. There are many good quotes there.

Being proud of yourself:

“It is better to be hated for what you are than to be loved for what you are not.”
― André Gide, Autumn Leaves

“Today you are You, that is truer than true. There is no one alive who is Youer than You.”
― Dr. Seuss, Happy Birthday to You!

“But better to get hurt by the truth than comforted with a lie.”
― Khaled Hosseini

“We have to dare to be ourselves, however frightening or strange that self may prove to be.”
― May Sarton

“Remember: the time you feel lonely is the time you most need to be by yourself. Life’s cruelest irony.”
― Douglas Coupland, Shampoo Planet

“No one can make you feel inferior without your consent.”
― Eleanor Roosevelt, This is My Story

“You have brains in your head. You have feet in your shoes. You can steer yourself any direction you choose. You’re on your own. And you know what you know. And YOU are the one who’ll decide where to go…”
― Dr. Seuss, Oh, the Places You’ll Go!

Have a good life:

“To laugh often and love much; to win the respect of intelligent persons and the affection of children; to earn the approbation of honest citizens and endure the betrayal of false friends; to appreciate beauty; to find the best in others; to give of one’s self; to leave the world a bit better, whether by a healthy child, a garden patch or a redeemed social condition; to have played and laughed with enthusiasm and sung with exultation; to know even one life has breathed easier because you have lived—this is to have succeeded.”
― Bessie Anderson Stanley, More Heart Throbs Volume Two in Prose and Verse Dear to the American People And by them contributed as a Supplement to the original $10,000 Prize Book HEART THROBS

“Finish each day and be done with it. You have done what you could. Some blunders and absurdities no doubt crept in; forget them as soon as you can. Tomorrow is a new day. You shall begin it serenely and with too high a spirit to be encumbered with your old nonsense.”
― Ralph Waldo Emerson

“Life isn’t about finding yourself. Life is about creating yourself.”
― George Bernard Shaw

“Who are you to judge the life I live?
I know I’m not perfect -and I don’t live to be- but before you start pointing fingers… make sure you hands are clean!”
― Bob Marley

“Be the change that you wish to see in the world.”
― Mahatma Gandhi

“Simplicity, patience, compassion.
These three are your greatest treasures.
Simple in actions and thoughts, you return to the source of being.
Patient with both friends and enemies,
you accord with the way things are.
Compassionate toward yourself,
you reconcile all beings in the world.”
― Lao Tzu, Tao Te Ching

“The saddest people I’ve ever met in life are the ones who don’t care deeply about anything at all. Passion and satisfaction go hand in hand, and without them, any happiness is only temporary, because there’s nothing to make it last.”
― Nicholas Sparks, Dear John

“For Attractive lips, speak words of kindness.
For lovely eyes, seek out the good in people.
For a slim figure, share your food with the hungry.
For beautiful hair, let a child run their fingers through it once a day.
For poise, walk with the knowledge that you never walk alone.
People, more than things, have to be restored, renewed, revived, reclaimed, and redeemed. Remember, if you ever need a helping hand, you will find one at the end of each of your arms.
As you grow older, you will discover that you have two hands, one for helping yourself and the other for helping others.”
― Sam Levenson

Life itself:

“If the world were merely seductive, that would be easy. If it were merely challenging, that would be no problem. But I arise in the morning torn between a desire to improve the world and a desire to enjoy the world. This makes it hard to plan the day.”
― E.B. White

“The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.”
― Isaac Asimov

“You cannot find peace by avoiding life.”
― Virginia Woolf

“Of all sad words of tongue or pen, the saddest are these, ‘It might have been.”
― John Greenleaf Whittier, Maud Muller – Pamphlet

“Life will break you. Nobody can protect you from that, and living alone won’t either, for solitude will also break you with its yearning. You have to love. You have to feel. It is the reason you are here on earth. You are here to risk your heart. You are here to be swallowed up. And when it happens that you are broken, or betrayed, or left, or hurt, or death brushes near, let yourself sit by an apple tree and listen to the apples falling all around you in heaps, wasting their sweetness. Tell yourself you tasted as many as you could.”
― Louise Erdrich, The Painted Drum LP

“A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.”
― George Bernard Shaw

“The most important thing is to enjoy your life—to be happy—it’s all that matters.”
― Audrey Hepburn

“These woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep.”
― Robert Frost, Stopping By Woods on a Snowy Evening

“Live as if you were to die tomorrow. Learn as if you were to live forever.”
― Mahatma Gandhi

“Yesterday is history, tomorrow is a mystery, today is a gift of God, which is why we call it the present.”
― Bil Keane

“To love. To be loved. To never forget your own insignificance. To never get used to the unspeakable violence and the vulgar disparity of life around you. To seek joy in the saddest places. To pursue beauty to its lair. To never simplify what is complicated or complicate what is simple. To respect strength, never power. Above all, to watch. To try and understand. To never look away. And never, never to forget.”
― Arundhati Roy, The Cost of Living

“The truth is, unless you let go, unless you forgive yourself, unless you forgive the situation, unless you realize that the situation is over, you cannot move forward.”
― Steve Maraboli, Unapologetically You: Reflections on Life and the Human Experience

“Dare to Be

When a new day begins, dare to smile gratefully.
When there is darkness, dare to be the first to shine a light.
When there is injustice, dare to be the first to condemn it.
When something seems difficult, dare to do it anyway.
When life seems to beat you down, dare to fight back.
When there seems to be no hope, dare to find some.
When you’re feeling tired, dare to keep going.
When times are tough, dare to be tougher.
When love hurts you, dare to love again.
When someone is hurting, dare to help them heal.
When another is lost, dare to help them find the way.
When a friend falls, dare to be the first to extend a hand.
When you cross paths with another, dare to make them smile.
When you feel great, dare to help someone else feel great too.
When the day has ended, dare to feel as you’ve done your best.
Dare to be the best you can –

“Nothing is impossible, the word itself says ‘I’m possible’!”
― Audrey Hepburn

 

 

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Living A Good Life

Hi there again~

I want to post something related with life today, but I don’t really know what should I post >< And suddenly I get this idea to post about how to live your life in a good way. I get this idea because I follow Think and Grow Rich’s facebook which is really good. You should follow them too, it will give you updated motivation sentences in each day.

I believe that we’ve all already know about the world’s situation right now, where people in each countries struggle to believe whether there still exist good people with good deed. The crime are everywhere, and they’re terrifying 😦 I’m sure that every one of us, at least once, have this wish to do something for this world, and end up wondering what can be done by us because our existence is insignificant as it is already, in our mind. Why do I say it like that? I had similar experience before, actually, I’ve always been had this kind of thought but really, wondering only won’t move you anywhere, will it?

It’s decided by nature that all people have a good and kind heart. But of course, how they live their life will be whole different story. If they stick to their nature, then ultimately those people will be good and kind hear-ted. But of course, we can’t judge people just by their decision to follow their nature or not. There will be too many reasons for people to choose how they spend their life, some of the reasons we can understand, some of them we can barely understand, and the rest will be the reasons which we never can understand. People grow and mature based on their environment and their conditions. As for the world now, we should totally understand why the number of good people become lesser and lesser. Really, we should be thankful enough when we have good and comfortable environment to grow which makes us able to understand others. The world that we live in for now is the world which isn’t friendly at all. We can only wonder, why there aren’t many good people left anymore..

Back to the topic where we should live a good life. Based on my own experience, there are some advises to lead your life into good quality:

• Realize and understand deeply that your life itself is a blessing.

When chosen by God to breathe the soul in your physical, it’s decided already that your existence will make some significant changes around you later. You, who will grow and face this world, it’s not you who is decided by the conditions, people, environment, situations around you. Anything can happen to you, whether it’s bad or good. But in the end it’s still you who’ll decide the you who live this life. If you search what purpose you should accomplish in this life, search it by heart. You’ll find it in no time that really, there is something which you can do well for the people around you. Ask it to yourself~

• Realize and understand that each people has their own way to live their life, without feeling any insignificance.

I believe that each of us has at least once wondering what type of life and what type of purpose we would have accomplished if we were someone great. For the great reason of living itself, people always mistaken that when someone’s background (which is always related to money, fame, position, etc.) isn’t great then he can’t do great thing in life. Stop thinking like that, please. People will do great if they have great mind and attitude. To achieve those both, you can’t only have a good background supporting you. You’ll need many other things too. No matter how big you do your things, if they’re not come from the deepest of your heart, then they all will be useless. No matter how insignificant the things you’ve done, you’ll never truly understand the meaning unless you’re the person whom accepted your kindness. Believe me, your existence has its own purpose for this world, no matter how insignificant it seems.

• Realize and understand that each people always need their own time to do some introspection and reflection, thus you can always improve yourself in a good way.

When someone you know need her time to be alone, try understanding her. It’s not that she doesn’t want to accompany you, it doesn’t mean that she is selfish. It’s just, each person always needs their time alone, to reflect to their activities for specific time, or to be drawn in their own thought. Accept it or not, person who always takes their private time will get wiser with the increasing time as long as she uses her private time wisely.

• Realize and understand that each knowledge you have, no matter how insignificant it seems, maybe useful for the right person in the right time.

When you are in similar position with the person who needs other help, you’ll understand how true the sentence above. For example, when you come to whole new regional or city which you’ve never ever visit before, and you need to be in a specific place as soon as possible. You will possibly ask some residents available around you about where is the specific place is and how to get there easily. For you, the information is really important and useful, while for the resident whom you get the information from, it is really usual. See? Even just the simplest thing you know could be very helpful for other, then why should we keep wondering what to do for others? Just live your life in a good way, there’ll be definitely many things you can do for them..

• Realize and understand that by being a good person, you have contributed a big time to this world.

Having a good mind and heart with positive attitude is the best thing we can do for the world right now. Imagine when the children around you have to know that there are too many bad things happen around them, while they supposed to happily playing with their friends. Can you imagine what kind of future they will have later? Be a good person, and live your life in a good way. It may seems insignificant, but at least you’ve tried to give the good example for the people around you. Never give up hope.

I think that’s it for now. I need two days to finish this post but I truly hope that this article, again, is useful for all of us. Let’s live our life in a good way, friends~

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